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1 | // Created on: 2013-09-26 |
2 | // Created by: Denis BOGOLEPOV |
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3 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
16 | #include <typeinfo> |
17 | |
e135a155 |
18 | #include <Graphic3d_TextureParams.hxx> |
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19 | #include <OpenGl_AspectFace.hxx> |
20 | #include <OpenGl_AspectLine.hxx> |
21 | #include <OpenGl_AspectMarker.hxx> |
22 | #include <OpenGl_AspectText.hxx> |
23 | #include <OpenGl_Clipping.hxx> |
24 | #include <OpenGl_Context.hxx> |
25 | #include <OpenGl_ShaderManager.hxx> |
26 | #include <OpenGl_ShaderProgram.hxx> |
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27 | #include <OpenGl_Workspace.hxx> |
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28 | |
ac116c22 |
29 | #include <TCollection_ExtendedString.hxx> |
30 | |
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31 | |
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32 | |
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33 | |
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34 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_ShaderManager,Standard_Transient) |
35 | |
8625ef7e |
36 | namespace |
37 | { |
38 | |
39 | #define EOL "\n" |
40 | |
79f4f036 |
41 | //! Definition of TexCoord varying. |
4e1523ef |
42 | const char THE_VARY_TexCoord_OUT[] = |
79f4f036 |
43 | EOL"THE_SHADER_OUT vec4 TexCoord;"; |
4e1523ef |
44 | const char THE_VARY_TexCoord_IN[] = |
79f4f036 |
45 | EOL"THE_SHADER_IN vec4 TexCoord;"; |
46 | //! Compute TexCoord value in Vertex Shader |
47 | const char THE_VARY_TexCoord_Trsf[] = |
48 | EOL" float aRotSin = occTextureTrsf_RotationSin();" |
49 | EOL" float aRotCos = occTextureTrsf_RotationCos();" |
50 | EOL" vec2 aTex2 = (occTexCoord.xy + occTextureTrsf_Translation()) * occTextureTrsf_Scale();" |
51 | EOL" vec2 aCopy = aTex2;" |
52 | EOL" aTex2.x = aCopy.x * aRotCos - aCopy.y * aRotSin;" |
53 | EOL" aTex2.y = aCopy.x * aRotSin + aCopy.y * aRotCos;" |
54 | EOL" TexCoord = vec4(aTex2, occTexCoord.zw);"; |
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55 | |
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56 | //! Auxiliary function to transform normal |
57 | const char THE_FUNC_transformNormal[] = |
58 | EOL"vec3 transformNormal (in vec3 theNormal)" |
59 | EOL"{" |
60 | EOL" vec4 aResult = occWorldViewMatrixInverseTranspose" |
61 | EOL" * occModelWorldMatrixInverseTranspose" |
62 | EOL" * vec4 (theNormal, 0.0);" |
63 | EOL" return normalize (aResult.xyz);" |
64 | EOL"}"; |
65 | |
66 | //! Global shader variable for color definition with lighting enabled. |
67 | const char THE_FUNC_lightDef[] = |
68 | EOL"vec3 Ambient;" //!< Ambient contribution of light sources |
69 | EOL"vec3 Diffuse;" //!< Diffuse contribution of light sources |
70 | EOL"vec3 Specular;"; //!< Specular contribution of light sources |
71 | |
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72 | //! Function computes contribution of isotropic point light source |
73 | const char THE_FUNC_pointLight[] = |
74 | EOL"void pointLight (in int theId," |
75 | EOL" in vec3 theNormal," |
76 | EOL" in vec3 theView," |
77 | EOL" in vec3 thePoint," |
78 | EOL" in bool theIsFront)" |
79 | EOL"{" |
80 | EOL" vec3 aLight = occLight_Position (theId).xyz;" |
81 | EOL" if (occLight_IsHeadlight (theId) == 0)" |
82 | EOL" {" |
83 | EOL" aLight = vec3 (occWorldViewMatrix * occModelWorldMatrix * vec4 (aLight, 1.0));" |
84 | EOL" }" |
85 | EOL" aLight -= thePoint;" |
86 | EOL |
87 | EOL" float aDist = length (aLight);" |
88 | EOL" aLight = aLight * (1.0 / aDist);" |
89 | EOL |
90 | EOL" float anAtten = 1.0 / (occLight_ConstAttenuation (theId)" |
91 | EOL" + occLight_LinearAttenuation (theId) * aDist);" |
92 | EOL |
93 | EOL" vec3 aHalf = normalize (aLight + theView);" |
94 | EOL |
95 | EOL" vec3 aFaceSideNormal = theIsFront ? theNormal : -theNormal;" |
96 | EOL" float aNdotL = max (0.0, dot (aFaceSideNormal, aLight));" |
97 | EOL" float aNdotH = max (0.0, dot (aFaceSideNormal, aHalf ));" |
98 | EOL |
99 | EOL" float aSpecl = 0.0;" |
100 | EOL" if (aNdotL > 0.0)" |
101 | EOL" {" |
102 | EOL" aSpecl = pow (aNdotH, theIsFront ? occFrontMaterial_Shininess() : occBackMaterial_Shininess());" |
103 | EOL" }" |
104 | EOL |
105 | EOL"Diffuse += occLight_Diffuse (theId).rgb * aNdotL * anAtten;" |
106 | EOL"Specular += occLight_Specular (theId).rgb * aSpecl * anAtten;" |
107 | EOL"}"; |
108 | |
109 | //! Function computes contribution of spotlight source |
110 | const char THE_FUNC_spotLight[] = |
111 | EOL"void spotLight (in int theId," |
112 | EOL" in vec3 theNormal," |
113 | EOL" in vec3 theView," |
114 | EOL" in vec3 thePoint," |
115 | EOL" in bool theIsFront)" |
116 | EOL"{" |
117 | EOL" vec3 aLight = occLight_Position (theId).xyz;" |
118 | EOL" vec3 aSpotDir = occLight_SpotDirection (theId).xyz;" |
119 | EOL" if (occLight_IsHeadlight (theId) == 0)" |
120 | EOL" {" |
121 | EOL" aLight = vec3 (occWorldViewMatrix * occModelWorldMatrix * vec4 (aLight, 1.0));" |
122 | EOL" aSpotDir = vec3 (occWorldViewMatrix * occModelWorldMatrix * vec4 (aSpotDir, 0.0));" |
123 | EOL" }" |
124 | EOL" aLight -= thePoint;" |
125 | EOL |
126 | EOL" float aDist = length (aLight);" |
127 | EOL" aLight = aLight * (1.0 / aDist);" |
128 | EOL |
129 | EOL" aSpotDir = normalize (aSpotDir);" |
130 | // light cone |
131 | EOL" float aCosA = dot (aSpotDir, -aLight);" |
132 | EOL" if (aCosA >= 1.0 || aCosA < cos (occLight_SpotCutOff (theId)))" |
133 | EOL" {" |
134 | EOL" return;" |
135 | EOL" }" |
136 | EOL |
137 | EOL" float anExponent = occLight_SpotExponent (theId);" |
138 | EOL" float anAtten = 1.0 / (occLight_ConstAttenuation (theId)" |
139 | EOL" + occLight_LinearAttenuation (theId) * aDist);" |
140 | EOL" if (anExponent > 0.0)" |
141 | EOL" {" |
142 | EOL" anAtten *= pow (aCosA, anExponent * 128.0);" |
143 | EOL" }" |
144 | EOL |
145 | EOL" vec3 aHalf = normalize (aLight + theView);" |
146 | EOL |
147 | EOL" vec3 aFaceSideNormal = theIsFront ? theNormal : -theNormal;" |
148 | EOL" float aNdotL = max (0.0, dot (aFaceSideNormal, aLight));" |
149 | EOL" float aNdotH = max (0.0, dot (aFaceSideNormal, aHalf ));" |
150 | EOL |
151 | EOL" float aSpecl = 0.0;" |
152 | EOL" if (aNdotL > 0.0)" |
153 | EOL" {" |
154 | EOL" aSpecl = pow (aNdotH, theIsFront ? occFrontMaterial_Shininess() : occBackMaterial_Shininess());" |
155 | EOL" }" |
156 | EOL |
157 | EOL" Diffuse += occLight_Diffuse (theId).rgb * aNdotL * anAtten;" |
158 | EOL" Specular += occLight_Specular (theId).rgb * aSpecl * anAtten;" |
159 | EOL"}"; |
160 | |
161 | //! Function computes contribution of directional light source |
162 | const char THE_FUNC_directionalLight[] = |
163 | EOL"void directionalLight (in int theId," |
164 | EOL" in vec3 theNormal," |
165 | EOL" in vec3 theView," |
166 | EOL" in bool theIsFront)" |
167 | EOL"{" |
168 | EOL" vec3 aLight = normalize (occLight_Position (theId).xyz);" |
169 | EOL" if (occLight_IsHeadlight (theId) == 0)" |
170 | EOL" {" |
171 | EOL" aLight = vec3 (occWorldViewMatrix * occModelWorldMatrix * vec4 (aLight, 0.0));" |
172 | EOL" }" |
173 | EOL |
174 | EOL" vec3 aHalf = normalize (aLight + theView);" |
175 | EOL |
176 | EOL" vec3 aFaceSideNormal = theIsFront ? theNormal : -theNormal;" |
177 | EOL" float aNdotL = max (0.0, dot (aFaceSideNormal, aLight));" |
178 | EOL" float aNdotH = max (0.0, dot (aFaceSideNormal, aHalf ));" |
179 | EOL |
180 | EOL" float aSpecl = 0.0;" |
181 | EOL" if (aNdotL > 0.0)" |
182 | EOL" {" |
183 | EOL" aSpecl = pow (aNdotH, theIsFront ? occFrontMaterial_Shininess() : occBackMaterial_Shininess());" |
184 | EOL" }" |
185 | EOL |
186 | EOL" Diffuse += occLight_Diffuse (theId).rgb * aNdotL;" |
187 | EOL" Specular += occLight_Specular (theId).rgb * aSpecl;" |
188 | EOL"}"; |
189 | |
190 | //! Process clipping planes in Fragment Shader. |
191 | //! Should be added at the beginning of the main() function. |
192 | const char THE_FRAG_CLIP_PLANES[] = |
193 | EOL" for (int aPlaneIter = 0; aPlaneIter < occClipPlaneCount; ++aPlaneIter)" |
194 | EOL" {" |
195 | EOL" vec4 aClipEquation = occClipPlaneEquations[aPlaneIter];" |
196 | EOL" int aClipSpace = occClipPlaneSpaces[aPlaneIter];" |
197 | EOL" if (aClipSpace == OccEquationCoords_World)" |
198 | EOL" {" |
199 | EOL" if (dot (aClipEquation.xyz, PositionWorld.xyz) + aClipEquation.w < 0.0)" |
200 | EOL" {" |
201 | EOL" discard;" |
202 | EOL" }" |
203 | EOL" }" |
204 | EOL" else if (aClipSpace == OccEquationCoords_View)" |
205 | EOL" {" |
206 | EOL" if (dot (aClipEquation.xyz, Position.xyz) + aClipEquation.w < 0.0)" |
207 | EOL" {" |
208 | EOL" discard;" |
209 | EOL" }" |
210 | EOL" }" |
211 | EOL" }"; |
212 | |
213 | } |
214 | |
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215 | // ======================================================================= |
216 | // function : OpenGl_ShaderManager |
217 | // purpose : Creates new empty shader manager |
218 | // ======================================================================= |
219 | OpenGl_ShaderManager::OpenGl_ShaderManager (OpenGl_Context* theContext) |
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220 | : myShadingModel (Graphic3d_TOSM_VERTEX), |
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221 | myContext (theContext), |
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222 | myLastView (NULL) |
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223 | { |
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224 | // |
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225 | } |
226 | |
227 | // ======================================================================= |
228 | // function : ~OpenGl_ShaderManager |
229 | // purpose : Releases resources of shader manager |
230 | // ======================================================================= |
231 | OpenGl_ShaderManager::~OpenGl_ShaderManager() |
232 | { |
233 | myProgramList.Clear(); |
234 | } |
235 | |
05e2200b |
236 | // ======================================================================= |
237 | // function : clear |
238 | // purpose : |
239 | // ======================================================================= |
240 | void OpenGl_ShaderManager::clear() |
241 | { |
242 | myProgramList.Clear(); |
243 | myLightPrograms.Nullify(); |
244 | myFlatPrograms = OpenGl_SetOfShaderPrograms(); |
245 | myMapOfLightPrograms.Clear(); |
246 | myFontProgram.Nullify(); |
b86bb3df |
247 | myBlitProgram.Nullify(); |
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248 | for (Standard_Integer aModeIter = 0; aModeIter < Graphic3d_StereoMode_NB; ++aModeIter) |
249 | { |
250 | myStereoPrograms[aModeIter].Nullify(); |
251 | } |
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252 | switchLightPrograms(); |
253 | } |
254 | |
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255 | // ======================================================================= |
256 | // function : Create |
257 | // purpose : Creates new shader program |
258 | // ======================================================================= |
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259 | Standard_Boolean OpenGl_ShaderManager::Create (const Handle(Graphic3d_ShaderProgram)& theProxy, |
260 | TCollection_AsciiString& theShareKey, |
261 | Handle(OpenGl_ShaderProgram)& theProgram) |
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262 | { |
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263 | theProgram.Nullify(); |
264 | if (theProxy.IsNull()) |
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265 | { |
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266 | return Standard_False; |
30f0ad28 |
267 | } |
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268 | |
269 | theShareKey = theProxy->GetId(); |
270 | if (myContext->GetResource<Handle(OpenGl_ShaderProgram)> (theShareKey, theProgram)) |
271 | { |
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272 | if (theProgram->Share()) |
273 | { |
274 | myProgramList.Append (theProgram); |
275 | } |
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276 | return Standard_True; |
392ac980 |
277 | } |
278 | |
279 | theProgram = new OpenGl_ShaderProgram (theProxy); |
280 | if (!theProgram->Initialize (myContext, theProxy->ShaderObjects())) |
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281 | { |
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282 | theProgram->Release (myContext); |
283 | theShareKey.Clear(); |
284 | theProgram.Nullify(); |
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285 | return Standard_False; |
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286 | } |
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287 | |
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288 | myProgramList.Append (theProgram); |
289 | myContext->ShareResource (theShareKey, theProgram); |
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290 | return Standard_True; |
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291 | } |
292 | |
293 | // ======================================================================= |
294 | // function : Unregister |
295 | // purpose : Removes specified shader program from the manager |
296 | // ======================================================================= |
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297 | void OpenGl_ShaderManager::Unregister (TCollection_AsciiString& theShareKey, |
298 | Handle(OpenGl_ShaderProgram)& theProgram) |
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299 | { |
300 | for (OpenGl_ShaderProgramList::Iterator anIt (myProgramList); anIt.More(); anIt.Next()) |
301 | { |
302 | if (anIt.Value() == theProgram) |
303 | { |
392ac980 |
304 | if (!theProgram->UnShare()) |
305 | { |
306 | theShareKey.Clear(); |
307 | theProgram.Nullify(); |
308 | return; |
309 | } |
310 | |
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311 | myProgramList.Remove (anIt); |
392ac980 |
312 | myMaterialStates.UnBind (theProgram); |
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313 | break; |
314 | } |
315 | } |
316 | |
317 | const TCollection_AsciiString anID = theProgram->myProxy->GetId(); |
318 | if (anID.IsEmpty()) |
319 | { |
320 | myContext->DelayedRelease (theProgram); |
321 | theProgram.Nullify(); |
322 | } |
323 | else |
324 | { |
325 | theProgram.Nullify(); |
05dd08ce |
326 | myContext->ReleaseResource (anID, Standard_True); |
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327 | } |
328 | } |
329 | |
330 | // ======================================================================= |
331 | // function : ShaderPrograms |
332 | // purpose : Returns list of registered shader programs |
333 | // ======================================================================= |
334 | const OpenGl_ShaderProgramList& OpenGl_ShaderManager::ShaderPrograms() const |
335 | { |
336 | return myProgramList; |
337 | } |
338 | |
339 | // ======================================================================= |
340 | // function : Empty |
341 | // purpose : Returns true if no program objects are attached |
342 | // ======================================================================= |
343 | Standard_Boolean OpenGl_ShaderManager::IsEmpty() const |
344 | { |
345 | return myProgramList.IsEmpty(); |
346 | } |
347 | |
256f9ac0 |
348 | // ======================================================================= |
349 | // function : switchLightPrograms |
350 | // purpose : |
351 | // ======================================================================= |
352 | void OpenGl_ShaderManager::switchLightPrograms() |
353 | { |
c357e426 |
354 | TCollection_AsciiString aKey (myShadingModel == Graphic3d_TOSM_FRAGMENT ? "p_" : "g_"); |
256f9ac0 |
355 | const OpenGl_ListOfLight* aLights = myLightSourceState.LightSources(); |
356 | if (aLights != NULL) |
357 | { |
358 | for (OpenGl_ListOfLight::Iterator aLightIter (*aLights); aLightIter.More(); aLightIter.Next()) |
359 | { |
360 | switch (aLightIter.Value().Type) |
361 | { |
c357e426 |
362 | case Graphic3d_TOLS_AMBIENT: |
256f9ac0 |
363 | break; // skip ambient |
c357e426 |
364 | case Graphic3d_TOLS_DIRECTIONAL: |
256f9ac0 |
365 | aKey += "d"; |
366 | break; |
c357e426 |
367 | case Graphic3d_TOLS_POSITIONAL: |
256f9ac0 |
368 | aKey += "p"; |
369 | break; |
c357e426 |
370 | case Graphic3d_TOLS_SPOT: |
256f9ac0 |
371 | aKey += "s"; |
372 | break; |
373 | } |
374 | } |
375 | } |
376 | |
377 | if (!myMapOfLightPrograms.Find (aKey, myLightPrograms)) |
378 | { |
379 | myLightPrograms = new OpenGl_SetOfShaderPrograms(); |
380 | myMapOfLightPrograms.Bind (aKey, myLightPrograms); |
381 | } |
382 | } |
383 | |
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384 | // ======================================================================= |
385 | // function : UpdateLightSourceStateTo |
386 | // purpose : Updates state of OCCT light sources |
387 | // ======================================================================= |
388 | void OpenGl_ShaderManager::UpdateLightSourceStateTo (const OpenGl_ListOfLight* theLights) |
389 | { |
390 | myLightSourceState.Set (theLights); |
391 | myLightSourceState.Update(); |
256f9ac0 |
392 | switchLightPrograms(); |
393 | } |
394 | |
395 | // ======================================================================= |
396 | // function : SetShadingModel |
397 | // purpose : |
398 | // ======================================================================= |
c357e426 |
399 | void OpenGl_ShaderManager::SetShadingModel (const Graphic3d_TypeOfShadingModel theModel) |
256f9ac0 |
400 | { |
401 | myShadingModel = theModel; |
402 | switchLightPrograms(); |
30f0ad28 |
403 | } |
404 | |
405 | // ======================================================================= |
406 | // function : SetProjectionState |
407 | // purpose : Sets new state of OCCT projection transform |
408 | // ======================================================================= |
c827ea3a |
409 | void OpenGl_ShaderManager::UpdateProjectionStateTo (const OpenGl_Mat4& theProjectionMatrix) |
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410 | { |
411 | myProjectionState.Set (theProjectionMatrix); |
412 | myProjectionState.Update(); |
413 | } |
414 | |
415 | // ======================================================================= |
416 | // function : SetModelWorldState |
417 | // purpose : Sets new state of OCCT model-world transform |
418 | // ======================================================================= |
c827ea3a |
419 | void OpenGl_ShaderManager::UpdateModelWorldStateTo (const OpenGl_Mat4& theModelWorldMatrix) |
30f0ad28 |
420 | { |
421 | myModelWorldState.Set (theModelWorldMatrix); |
422 | myModelWorldState.Update(); |
423 | } |
424 | |
425 | // ======================================================================= |
426 | // function : SetWorldViewState |
427 | // purpose : Sets new state of OCCT world-view transform |
428 | // ======================================================================= |
c827ea3a |
429 | void OpenGl_ShaderManager::UpdateWorldViewStateTo (const OpenGl_Mat4& theWorldViewMatrix) |
30f0ad28 |
430 | { |
431 | myWorldViewState.Set (theWorldViewMatrix); |
432 | myWorldViewState.Update(); |
433 | } |
434 | |
30f0ad28 |
435 | // ======================================================================= |
436 | // function : LightSourceState |
437 | // purpose : Returns current state of OCCT light sources |
438 | // ======================================================================= |
439 | const OpenGl_LightSourceState& OpenGl_ShaderManager::LightSourceState() const |
440 | { |
441 | return myLightSourceState; |
442 | } |
443 | |
444 | // ======================================================================= |
445 | // function : ProjectionState |
446 | // purpose : Returns current state of OCCT projection transform |
447 | // ======================================================================= |
448 | const OpenGl_ProjectionState& OpenGl_ShaderManager::ProjectionState() const |
449 | { |
450 | return myProjectionState; |
451 | } |
452 | |
453 | // ======================================================================= |
454 | // function : ModelWorldState |
455 | // purpose : Returns current state of OCCT model-world transform |
456 | // ======================================================================= |
457 | const OpenGl_ModelWorldState& OpenGl_ShaderManager::ModelWorldState() const |
458 | { |
459 | return myModelWorldState; |
460 | } |
461 | |
462 | // ======================================================================= |
463 | // function : WorldViewState |
464 | // purpose : Returns current state of OCCT world-view transform |
465 | // ======================================================================= |
466 | const OpenGl_WorldViewState& OpenGl_ShaderManager::WorldViewState() const |
467 | { |
468 | return myWorldViewState; |
469 | } |
470 | |
4fe9ad57 |
471 | //! Packed properties of light source |
472 | class OpenGl_ShaderLightParameters |
473 | { |
474 | public: |
475 | |
476 | OpenGl_Vec4 Color; |
477 | OpenGl_Vec4 Position; |
478 | OpenGl_Vec4 Direction; |
479 | OpenGl_Vec4 Parameters; |
480 | |
481 | //! Returns packed (serialized) representation of light source properties |
0adbd30f |
482 | const OpenGl_Vec4* Packed() const { return reinterpret_cast<const OpenGl_Vec4*> (this); } |
01eaf654 |
483 | static Standard_Integer NbOfVec4() { return 4; } |
4fe9ad57 |
484 | |
485 | }; |
486 | |
487 | //! Packed light source type information |
488 | class OpenGl_ShaderLightType |
489 | { |
490 | public: |
491 | |
492 | Standard_Integer Type; |
493 | Standard_Integer IsHeadlight; |
494 | |
495 | //! Returns packed (serialized) representation of light source type |
0adbd30f |
496 | const OpenGl_Vec2i* Packed() const { return reinterpret_cast<const OpenGl_Vec2i*> (this); } |
01eaf654 |
497 | static Standard_Integer NbOfVec2i() { return 1; } |
4fe9ad57 |
498 | |
499 | }; |
500 | |
30f0ad28 |
501 | // ======================================================================= |
502 | // function : PushLightSourceState |
503 | // purpose : Pushes state of OCCT light sources to the program |
504 | // ======================================================================= |
505 | void OpenGl_ShaderManager::PushLightSourceState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
506 | { |
12381341 |
507 | if (myLightSourceState.Index() == theProgram->ActiveState (OpenGl_LIGHT_SOURCES_STATE) |
508 | || !theProgram->IsValid()) |
30f0ad28 |
509 | { |
510 | return; |
511 | } |
30f0ad28 |
512 | |
01eaf654 |
513 | OpenGl_ShaderLightType* aLightTypeArray = new OpenGl_ShaderLightType[OpenGLMaxLights]; |
514 | for (Standard_Integer aLightIt = 0; aLightIt < OpenGLMaxLights; ++aLightIt) |
515 | { |
516 | aLightTypeArray[aLightIt].Type = -1; |
517 | } |
518 | |
12381341 |
519 | const Standard_Integer aLightsDefNb = Min (myLightSourceState.LightSources()->Size(), OpenGLMaxLights); |
520 | if (aLightsDefNb < 1) |
521 | { |
30f0ad28 |
522 | theProgram->SetUniform (myContext, |
12381341 |
523 | theProgram->GetStateLocation (OpenGl_OCC_LIGHT_SOURCE_COUNT), |
524 | 0); |
30f0ad28 |
525 | theProgram->SetUniform (myContext, |
12381341 |
526 | theProgram->GetStateLocation (OpenGl_OCC_LIGHT_AMBIENT), |
527 | OpenGl_Vec4 (0.0f, 0.0f, 0.0f, 0.0f)); |
01eaf654 |
528 | theProgram->SetUniform (myContext, |
529 | theProgram->GetStateLocation (OpenGl_OCC_LIGHT_SOURCE_TYPES), |
530 | OpenGLMaxLights * OpenGl_ShaderLightType::NbOfVec2i(), |
531 | aLightTypeArray[0].Packed()); |
12381341 |
532 | theProgram->UpdateState (OpenGl_LIGHT_SOURCES_STATE, myLightSourceState.Index()); |
0c4033b4 |
533 | delete[] aLightTypeArray; |
12381341 |
534 | return; |
535 | } |
30f0ad28 |
536 | |
4fe9ad57 |
537 | OpenGl_ShaderLightParameters* aLightParamsArray = new OpenGl_ShaderLightParameters[aLightsDefNb]; |
30f0ad28 |
538 | |
12381341 |
539 | OpenGl_Vec4 anAmbient (0.0f, 0.0f, 0.0f, 0.0f); |
540 | Standard_Integer aLightsNb = 0; |
541 | for (OpenGl_ListOfLight::Iterator anIter (*myLightSourceState.LightSources()); anIter.More(); anIter.Next()) |
542 | { |
543 | const OpenGl_Light& aLight = anIter.Value(); |
c357e426 |
544 | if (aLight.Type == Graphic3d_TOLS_AMBIENT) |
30f0ad28 |
545 | { |
12381341 |
546 | anAmbient += aLight.Color; |
547 | continue; |
548 | } |
549 | else if (aLightsNb >= OpenGLMaxLights) |
550 | { |
551 | continue; |
552 | } |
30f0ad28 |
553 | |
4fe9ad57 |
554 | OpenGl_ShaderLightType& aLightType = aLightTypeArray[aLightsNb]; |
555 | aLightType.Type = aLight.Type; |
556 | aLightType.IsHeadlight = aLight.IsHeadlight; |
30f0ad28 |
557 | |
4fe9ad57 |
558 | OpenGl_ShaderLightParameters& aLightParams = aLightParamsArray[aLightsNb]; |
559 | aLightParams.Color = aLight.Color; |
c357e426 |
560 | aLightParams.Position = aLight.Type == Graphic3d_TOLS_DIRECTIONAL |
4fe9ad57 |
561 | ? -aLight.Direction |
562 | : aLight.Position; |
c357e426 |
563 | if (aLight.Type == Graphic3d_TOLS_SPOT) |
12381341 |
564 | { |
4fe9ad57 |
565 | aLightParams.Direction = aLight.Direction; |
30f0ad28 |
566 | } |
4fe9ad57 |
567 | aLightParams.Parameters = aLight.Params; |
12381341 |
568 | ++aLightsNb; |
569 | } |
30f0ad28 |
570 | |
12381341 |
571 | theProgram->SetUniform (myContext, |
572 | theProgram->GetStateLocation (OpenGl_OCC_LIGHT_SOURCE_COUNT), |
573 | aLightsNb); |
574 | theProgram->SetUniform (myContext, |
575 | theProgram->GetStateLocation (OpenGl_OCC_LIGHT_AMBIENT), |
576 | anAmbient); |
01eaf654 |
577 | theProgram->SetUniform (myContext, |
578 | theProgram->GetStateLocation (OpenGl_OCC_LIGHT_SOURCE_TYPES), |
579 | OpenGLMaxLights * OpenGl_ShaderLightType::NbOfVec2i(), |
580 | aLightTypeArray[0].Packed()); |
12381341 |
581 | if (aLightsNb > 0) |
582 | { |
4fe9ad57 |
583 | theProgram->SetUniform (myContext, |
584 | theProgram->GetStateLocation (OpenGl_OCC_LIGHT_SOURCE_PARAMS), |
585 | aLightsNb * OpenGl_ShaderLightParameters::NbOfVec4(), |
586 | aLightParamsArray[0].Packed()); |
30f0ad28 |
587 | } |
4fe9ad57 |
588 | delete[] aLightParamsArray; |
589 | delete[] aLightTypeArray; |
30f0ad28 |
590 | |
591 | theProgram->UpdateState (OpenGl_LIGHT_SOURCES_STATE, myLightSourceState.Index()); |
592 | } |
593 | |
594 | // ======================================================================= |
595 | // function : PushProjectionState |
596 | // purpose : Pushes state of OCCT projection transform to the program |
597 | // ======================================================================= |
598 | void OpenGl_ShaderManager::PushProjectionState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
599 | { |
600 | if (myProjectionState.Index() == theProgram->ActiveState (OpenGl_PROJECTION_STATE)) |
601 | { |
602 | return; |
603 | } |
604 | |
605 | theProgram->SetUniform (myContext, |
606 | theProgram->GetStateLocation (OpenGl_OCC_PROJECTION_MATRIX), |
607 | myProjectionState.ProjectionMatrix()); |
608 | |
609 | GLint aLocation = theProgram->GetStateLocation (OpenGl_OCC_PROJECTION_MATRIX_INVERSE); |
610 | if (aLocation != OpenGl_ShaderProgram::INVALID_LOCATION) |
611 | { |
612 | theProgram->SetUniform (myContext, aLocation, myProjectionState.ProjectionMatrixInverse()); |
613 | } |
614 | |
615 | theProgram->SetUniform (myContext, |
616 | theProgram->GetStateLocation (OpenGl_OCC_PROJECTION_MATRIX_TRANSPOSE), |
617 | myProjectionState.ProjectionMatrix(), true); |
618 | |
619 | aLocation = theProgram->GetStateLocation (OpenGl_OCC_PROJECTION_MATRIX_INVERSE_TRANSPOSE); |
620 | if (aLocation != OpenGl_ShaderProgram::INVALID_LOCATION) |
621 | { |
622 | theProgram->SetUniform (myContext, aLocation, myProjectionState.ProjectionMatrixInverse(), true); |
623 | } |
624 | |
625 | theProgram->UpdateState (OpenGl_PROJECTION_STATE, myProjectionState.Index()); |
626 | } |
627 | |
628 | // ======================================================================= |
629 | // function : PushModelWorldState |
630 | // purpose : Pushes state of OCCT model-world transform to the program |
631 | // ======================================================================= |
632 | void OpenGl_ShaderManager::PushModelWorldState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
633 | { |
634 | if (myModelWorldState.Index() == theProgram->ActiveState (OpenGl_MODEL_WORLD_STATE)) |
635 | { |
636 | return; |
637 | } |
638 | |
639 | theProgram->SetUniform (myContext, |
640 | theProgram->GetStateLocation (OpenGl_OCC_MODEL_WORLD_MATRIX), |
641 | myModelWorldState.ModelWorldMatrix()); |
642 | |
643 | GLint aLocation = theProgram->GetStateLocation (OpenGl_OCC_MODEL_WORLD_MATRIX_INVERSE); |
644 | if (aLocation != OpenGl_ShaderProgram::INVALID_LOCATION) |
645 | { |
646 | theProgram->SetUniform (myContext, aLocation, myModelWorldState.ModelWorldMatrixInverse()); |
647 | } |
648 | |
649 | theProgram->SetUniform (myContext, |
650 | theProgram->GetStateLocation (OpenGl_OCC_MODEL_WORLD_MATRIX_TRANSPOSE), |
651 | myModelWorldState.ModelWorldMatrix(), true); |
652 | |
653 | aLocation = theProgram->GetStateLocation (OpenGl_OCC_MODEL_WORLD_MATRIX_INVERSE_TRANSPOSE); |
654 | if (aLocation != OpenGl_ShaderProgram::INVALID_LOCATION) |
655 | { |
656 | theProgram->SetUniform (myContext, aLocation, myModelWorldState.ModelWorldMatrixInverse(), true); |
657 | } |
658 | |
659 | theProgram->UpdateState (OpenGl_MODEL_WORLD_STATE, myModelWorldState.Index()); |
660 | } |
661 | |
662 | // ======================================================================= |
663 | // function : PushWorldViewState |
664 | // purpose : Pushes state of OCCT world-view transform to the program |
665 | // ======================================================================= |
666 | void OpenGl_ShaderManager::PushWorldViewState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
667 | { |
668 | if (myWorldViewState.Index() == theProgram->ActiveState (OpenGl_WORLD_VIEW_STATE)) |
669 | { |
670 | return; |
671 | } |
672 | |
673 | theProgram->SetUniform (myContext, |
674 | theProgram->GetStateLocation (OpenGl_OCC_WORLD_VIEW_MATRIX), |
675 | myWorldViewState.WorldViewMatrix()); |
676 | |
677 | GLint aLocation = theProgram->GetStateLocation (OpenGl_OCC_WORLD_VIEW_MATRIX_INVERSE); |
678 | if (aLocation != OpenGl_ShaderProgram::INVALID_LOCATION) |
679 | { |
680 | theProgram->SetUniform (myContext, aLocation, myWorldViewState.WorldViewMatrixInverse()); |
681 | } |
682 | |
683 | theProgram->SetUniform (myContext, |
684 | theProgram->GetStateLocation (OpenGl_OCC_WORLD_VIEW_MATRIX_TRANSPOSE), |
685 | myWorldViewState.WorldViewMatrix(), true); |
686 | |
687 | aLocation = theProgram->GetStateLocation (OpenGl_OCC_WORLD_VIEW_MATRIX_INVERSE_TRANSPOSE); |
688 | if (aLocation != OpenGl_ShaderProgram::INVALID_LOCATION) |
689 | { |
690 | theProgram->SetUniform (myContext, aLocation, myWorldViewState.WorldViewMatrixInverse(), true); |
691 | } |
692 | |
693 | theProgram->UpdateState (OpenGl_WORLD_VIEW_STATE, myWorldViewState.Index()); |
694 | } |
695 | |
696 | // ======================================================================= |
697 | // function : UpdateClippingState |
698 | // purpose : Updates state of OCCT clipping planes |
699 | // ======================================================================= |
700 | void OpenGl_ShaderManager::UpdateClippingState() |
701 | { |
702 | myClippingState.Update(); |
703 | } |
704 | |
705 | // ======================================================================= |
706 | // function : RevertClippingState |
707 | // purpose : Reverts state of OCCT clipping planes |
708 | // ======================================================================= |
709 | void OpenGl_ShaderManager::RevertClippingState() |
710 | { |
711 | myClippingState.Revert(); |
712 | } |
713 | |
714 | // ======================================================================= |
715 | // function : PushClippingState |
716 | // purpose : Pushes state of OCCT clipping planes to the program |
717 | // ======================================================================= |
718 | void OpenGl_ShaderManager::PushClippingState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
719 | { |
720 | if (myClippingState.Index() == theProgram->ActiveState (OpenGl_CLIP_PLANES_STATE)) |
721 | { |
722 | return; |
723 | } |
724 | |
12381341 |
725 | theProgram->UpdateState (OpenGl_CLIP_PLANES_STATE, myClippingState.Index()); |
726 | const GLint aLocEquations = theProgram->GetStateLocation (OpenGl_OCC_CLIP_PLANE_EQUATIONS); |
727 | const GLint aLocSpaces = theProgram->GetStateLocation (OpenGl_OCC_CLIP_PLANE_SPACES); |
728 | if (aLocEquations == OpenGl_ShaderProgram::INVALID_LOCATION |
729 | && aLocSpaces == OpenGl_ShaderProgram::INVALID_LOCATION) |
730 | { |
731 | return; |
732 | } |
733 | |
5495fa7e |
734 | GLint aPlanesNb = 0; |
51b10cd4 |
735 | for (Graphic3d_SequenceOfHClipPlane::Iterator anIter (myContext->Clipping().Planes()); |
12381341 |
736 | anIter.More(); anIter.Next()) |
30f0ad28 |
737 | { |
738 | const Handle(Graphic3d_ClipPlane)& aPlane = anIter.Value(); |
739 | if (!myContext->Clipping().IsEnabled (aPlane)) |
740 | { |
741 | continue; |
742 | } |
743 | |
12381341 |
744 | ++aPlanesNb; |
745 | } |
746 | if (aPlanesNb < 1) |
747 | { |
748 | return; |
749 | } |
750 | |
5495fa7e |
751 | const Standard_Size MAX_CLIP_PLANES = 8; |
752 | OpenGl_Vec4* anEquations = new OpenGl_Vec4[MAX_CLIP_PLANES]; |
753 | GLint* aSpaces = new GLint [MAX_CLIP_PLANES]; |
12381341 |
754 | GLuint aPlaneId = 0; |
51b10cd4 |
755 | for (Graphic3d_SequenceOfHClipPlane::Iterator anIter (myContext->Clipping().Planes()); |
12381341 |
756 | anIter.More(); anIter.Next()) |
757 | { |
758 | const Handle(Graphic3d_ClipPlane)& aPlane = anIter.Value(); |
759 | if (!myContext->Clipping().IsEnabled (aPlane)) |
30f0ad28 |
760 | { |
12381341 |
761 | continue; |
30f0ad28 |
762 | } |
763 | |
12381341 |
764 | const Graphic3d_ClipPlane::Equation& anEquation = aPlane->GetEquation(); |
765 | anEquations[aPlaneId] = OpenGl_Vec4 ((float) anEquation.x(), |
766 | (float) anEquation.y(), |
767 | (float) anEquation.z(), |
768 | (float) anEquation.w()); |
769 | aSpaces[aPlaneId] = myContext->Clipping().GetEquationSpace (aPlane); |
770 | ++aPlaneId; |
30f0ad28 |
771 | } |
5495fa7e |
772 | |
773 | theProgram->SetUniform (myContext, |
774 | theProgram->GetStateLocation (OpenGl_OCC_CLIP_PLANE_COUNT), |
775 | aPlanesNb); |
776 | theProgram->SetUniform (myContext, aLocEquations, MAX_CLIP_PLANES, anEquations); |
777 | theProgram->SetUniform (myContext, aLocSpaces, MAX_CLIP_PLANES, aSpaces); |
4fe9ad57 |
778 | |
12381341 |
779 | delete[] anEquations; |
780 | delete[] aSpaces; |
30f0ad28 |
781 | } |
782 | |
783 | // ======================================================================= |
784 | // function : UpdateMaterialStateTo |
785 | // purpose : Updates state of OCCT material for specified program |
786 | // ======================================================================= |
787 | void OpenGl_ShaderManager::UpdateMaterialStateTo (const Handle(OpenGl_ShaderProgram)& theProgram, |
788 | const OpenGl_Element* theAspect) |
789 | { |
790 | if (myMaterialStates.IsBound (theProgram)) |
791 | { |
595a42a4 |
792 | OpenGl_MaterialState& aState = myMaterialStates.ChangeFind (theProgram); |
793 | aState.Set (theAspect); |
794 | aState.Update(); |
30f0ad28 |
795 | } |
796 | else |
797 | { |
595a42a4 |
798 | myMaterialStates.Bind (theProgram, OpenGl_MaterialState (theAspect)); |
799 | myMaterialStates.ChangeFind (theProgram).Update(); |
30f0ad28 |
800 | } |
30f0ad28 |
801 | } |
802 | |
803 | // ======================================================================= |
804 | // function : ResetMaterialStates |
805 | // purpose : Resets state of OCCT material for all programs |
806 | // ======================================================================= |
807 | void OpenGl_ShaderManager::ResetMaterialStates() |
808 | { |
809 | for (OpenGl_ShaderProgramList::Iterator anIt (myProgramList); anIt.More(); anIt.Next()) |
810 | { |
811 | anIt.Value()->UpdateState (OpenGl_MATERIALS_STATE, 0); |
812 | } |
813 | } |
814 | |
815 | // ======================================================================= |
816 | // function : MaterialState |
817 | // purpose : Returns state of OCCT material for specified program |
818 | // ======================================================================= |
819 | const OpenGl_MaterialState* OpenGl_ShaderManager::MaterialState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
820 | { |
821 | if (!myMaterialStates.IsBound (theProgram)) |
822 | return NULL; |
823 | |
824 | return &myMaterialStates.Find (theProgram); |
825 | } |
826 | |
e135a155 |
827 | // ======================================================================= |
828 | // function : SurfaceDetailState |
829 | // purpose : Returns current state of OCCT surface detail |
830 | // ======================================================================= |
831 | const OpenGl_SurfaceDetailState& OpenGl_ShaderManager::SurfaceDetailState() const |
832 | { |
833 | return mySurfaceDetailState; |
834 | } |
835 | |
836 | // ======================================================================= |
837 | // function : UpdateSurfaceDetailStateTo |
838 | // purpose : Updates state of OCCT surface detail |
839 | // ======================================================================= |
c357e426 |
840 | void OpenGl_ShaderManager::UpdateSurfaceDetailStateTo (const Graphic3d_TypeOfSurfaceDetail theDetail) |
e135a155 |
841 | { |
842 | mySurfaceDetailState.Set (theDetail); |
843 | mySurfaceDetailState.Update(); |
844 | } |
845 | |
30f0ad28 |
846 | namespace |
847 | { |
848 | |
849 | static const OpenGl_Vec4 THE_COLOR_BLACK_VEC4 (0.0f, 0.0f, 0.0f, 0.0f); |
850 | |
851 | // ======================================================================= |
852 | // function : PushAspectFace |
853 | // purpose : |
854 | // ======================================================================= |
855 | static void PushAspectFace (const Handle(OpenGl_Context)& theCtx, |
856 | const Handle(OpenGl_ShaderProgram)& theProgram, |
857 | const OpenGl_AspectFace* theAspect) |
858 | { |
859 | theProgram->SetUniform (theCtx, |
860 | theProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_ENABLE), |
861 | theAspect->DoTextureMap()); |
30f0ad28 |
862 | theProgram->SetUniform (theCtx, |
863 | theProgram->GetStateLocation (OpenGl_OCCT_ACTIVE_SAMPLER), |
864 | 0 /* GL_TEXTURE0 */); |
30f0ad28 |
865 | theProgram->SetUniform (theCtx, |
866 | theProgram->GetStateLocation (OpenGl_OCCT_DISTINGUISH_MODE), |
867 | theAspect->DistinguishingMode()); |
868 | |
0adbd30f |
869 | OpenGl_Material aParams; |
12381341 |
870 | for (Standard_Integer anIndex = 0; anIndex < 2; ++anIndex) |
30f0ad28 |
871 | { |
12381341 |
872 | const GLint aLoc = theProgram->GetStateLocation (anIndex == 0 |
873 | ? OpenGl_OCCT_FRONT_MATERIAL |
874 | : OpenGl_OCCT_BACK_MATERIAL); |
875 | if (aLoc == OpenGl_ShaderProgram::INVALID_LOCATION) |
30f0ad28 |
876 | { |
12381341 |
877 | continue; |
30f0ad28 |
878 | } |
30f0ad28 |
879 | |
363bc51b |
880 | const OPENGL_SURF_PROP& aProp = anIndex == 0 || theAspect->DistinguishingMode() != TOn |
881 | ? theAspect->IntFront() |
882 | : theAspect->IntBack(); |
883 | aParams.Init (aProp); |
884 | aParams.Diffuse.a() = aProp.trans; |
0adbd30f |
885 | theProgram->SetUniform (theCtx, aLoc, OpenGl_Material::NbOfVec4(), |
886 | aParams.Packed()); |
30f0ad28 |
887 | } |
888 | } |
889 | |
890 | // ======================================================================= |
891 | // function : PushAspectLine |
892 | // purpose : |
893 | // ======================================================================= |
894 | static void PushAspectLine (const Handle(OpenGl_Context)& theCtx, |
895 | const Handle(OpenGl_ShaderProgram)& theProgram, |
896 | const OpenGl_AspectLine* theAspect) |
897 | { |
898 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_ENABLE), TOff); |
899 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_DISTINGUISH_MODE), TOff); |
900 | |
901 | const OpenGl_Vec4 aDiffuse (theAspect->Color().rgb[0], |
902 | theAspect->Color().rgb[1], |
903 | theAspect->Color().rgb[2], |
904 | theAspect->Color().rgb[3]); |
12381341 |
905 | OpenGl_Vec4 aParams[5]; |
906 | aParams[0] = THE_COLOR_BLACK_VEC4; |
907 | aParams[1] = THE_COLOR_BLACK_VEC4; |
908 | aParams[2] = aDiffuse; |
909 | aParams[3] = THE_COLOR_BLACK_VEC4; |
910 | aParams[4].x() = 0.0f; // shininess |
911 | aParams[4].y() = 0.0f; // transparency |
4fe9ad57 |
912 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_FRONT_MATERIAL), |
913 | 5, aParams); |
30f0ad28 |
914 | } |
915 | |
916 | // ======================================================================= |
917 | // function : PushAspectText |
918 | // purpose : |
919 | // ======================================================================= |
920 | static void PushAspectText (const Handle(OpenGl_Context)& theCtx, |
921 | const Handle(OpenGl_ShaderProgram)& theProgram, |
922 | const OpenGl_AspectText* theAspect) |
923 | { |
924 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_ENABLE), TOn); |
925 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_DISTINGUISH_MODE), TOff); |
926 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_ACTIVE_SAMPLER), 0 /* GL_TEXTURE0 */); |
927 | |
928 | OpenGl_Vec4 aDiffuse (theAspect->Color().rgb[0], |
929 | theAspect->Color().rgb[1], |
930 | theAspect->Color().rgb[2], |
931 | theAspect->Color().rgb[3]); |
932 | if (theAspect->DisplayType() == Aspect_TODT_DEKALE |
933 | || theAspect->DisplayType() == Aspect_TODT_SUBTITLE) |
934 | { |
935 | aDiffuse = OpenGl_Vec4 (theAspect->SubtitleColor().rgb[0], |
936 | theAspect->SubtitleColor().rgb[1], |
937 | theAspect->SubtitleColor().rgb[2], |
938 | theAspect->SubtitleColor().rgb[3]); |
939 | } |
940 | |
12381341 |
941 | OpenGl_Vec4 aParams[5]; |
942 | aParams[0] = THE_COLOR_BLACK_VEC4; |
943 | aParams[1] = THE_COLOR_BLACK_VEC4; |
944 | aParams[2] = aDiffuse; |
945 | aParams[3] = THE_COLOR_BLACK_VEC4; |
946 | aParams[4].x() = 0.0f; // shininess |
947 | aParams[4].y() = 0.0f; // transparency |
4fe9ad57 |
948 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_FRONT_MATERIAL), |
949 | 5, aParams); |
30f0ad28 |
950 | } |
951 | |
952 | // ======================================================================= |
953 | // function : PushAspectMarker |
954 | // purpose : |
955 | // ======================================================================= |
956 | static void PushAspectMarker (const Handle(OpenGl_Context)& theCtx, |
957 | const Handle(OpenGl_ShaderProgram)& theProgram, |
958 | const OpenGl_AspectMarker* theAspect) |
959 | { |
960 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_ENABLE), TOn); |
961 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_DISTINGUISH_MODE), TOff); |
962 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_ACTIVE_SAMPLER), 0 /* GL_TEXTURE0 */); |
963 | |
964 | const OpenGl_Vec4 aDiffuse (theAspect->Color().rgb[0], |
965 | theAspect->Color().rgb[1], |
966 | theAspect->Color().rgb[2], |
967 | theAspect->Color().rgb[3]); |
12381341 |
968 | OpenGl_Vec4 aParams[5]; |
969 | aParams[0] = THE_COLOR_BLACK_VEC4; |
970 | aParams[1] = THE_COLOR_BLACK_VEC4; |
971 | aParams[2] = aDiffuse; |
972 | aParams[3] = THE_COLOR_BLACK_VEC4; |
973 | aParams[4].x() = 0.0f; // shininess |
974 | aParams[4].y() = 0.0f; // transparency |
4fe9ad57 |
975 | theProgram->SetUniform (theCtx, theProgram->GetStateLocation (OpenGl_OCCT_FRONT_MATERIAL), |
976 | 5, aParams); |
30f0ad28 |
977 | } |
978 | |
979 | }; // nameless namespace |
980 | |
981 | // ======================================================================= |
982 | // function : PushMaterialState |
983 | // purpose : Pushes current state of OCCT material to the program |
984 | // ======================================================================= |
985 | void OpenGl_ShaderManager::PushMaterialState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
986 | { |
987 | if (!myMaterialStates.IsBound (theProgram)) |
988 | { |
989 | return; |
990 | } |
991 | |
992 | const OpenGl_MaterialState& aState = myMaterialStates.Find (theProgram); |
993 | if (aState.Index() == theProgram->ActiveState (OpenGl_MATERIALS_STATE)) |
994 | { |
995 | return; |
996 | } |
997 | |
c7854818 |
998 | const OpenGl_Element* anAspect = aState.Aspect(); |
999 | if (typeid (*anAspect) == typeid (OpenGl_AspectFace)) |
30f0ad28 |
1000 | { |
c7854818 |
1001 | PushAspectFace (myContext, theProgram, dynamic_cast<const OpenGl_AspectFace*> (anAspect)); |
30f0ad28 |
1002 | } |
c7854818 |
1003 | else if (typeid (*anAspect) == typeid (OpenGl_AspectLine)) |
30f0ad28 |
1004 | { |
c7854818 |
1005 | PushAspectLine (myContext, theProgram, dynamic_cast<const OpenGl_AspectLine*> (anAspect)); |
30f0ad28 |
1006 | } |
c7854818 |
1007 | else if (typeid (*anAspect) == typeid (OpenGl_AspectText)) |
30f0ad28 |
1008 | { |
c7854818 |
1009 | PushAspectText (myContext, theProgram, dynamic_cast<const OpenGl_AspectText*> (anAspect)); |
30f0ad28 |
1010 | } |
c7854818 |
1011 | else if (typeid (*anAspect) == typeid (OpenGl_AspectMarker)) |
30f0ad28 |
1012 | { |
c7854818 |
1013 | PushAspectMarker (myContext, theProgram, dynamic_cast<const OpenGl_AspectMarker*> (anAspect)); |
30f0ad28 |
1014 | } |
1015 | |
1016 | theProgram->UpdateState (OpenGl_MATERIALS_STATE, aState.Index()); |
1017 | } |
1018 | |
1019 | // ======================================================================= |
e135a155 |
1020 | // function : PushState |
30f0ad28 |
1021 | // purpose : Pushes state of OCCT graphics parameters to the program |
1022 | // ======================================================================= |
1023 | void OpenGl_ShaderManager::PushState (const Handle(OpenGl_ShaderProgram)& theProgram) const |
1024 | { |
1025 | PushClippingState (theProgram); |
1026 | PushMaterialState (theProgram); |
1027 | PushWorldViewState (theProgram); |
1028 | PushModelWorldState (theProgram); |
05e2200b |
1029 | PushProjectionState (theProgram); |
30f0ad28 |
1030 | PushLightSourceState (theProgram); |
12381341 |
1031 | } |
8625ef7e |
1032 | |
1033 | // ======================================================================= |
1034 | // function : prepareStdProgramFont |
1035 | // purpose : |
1036 | // ======================================================================= |
1037 | Standard_Boolean OpenGl_ShaderManager::prepareStdProgramFont() |
1038 | { |
1039 | Handle(Graphic3d_ShaderProgram) aProgramSrc = new Graphic3d_ShaderProgram(); |
b990e557 |
1040 | TCollection_AsciiString aSrcVert = TCollection_AsciiString() |
79f4f036 |
1041 | + EOL"THE_SHADER_OUT vec2 TexCoord;" |
1042 | EOL"void main()" |
b990e557 |
1043 | EOL"{" |
1044 | EOL" TexCoord = occTexCoord.st;" |
1045 | EOL" gl_Position = occProjectionMatrix * occWorldViewMatrix * occModelWorldMatrix * occVertex;" |
1046 | EOL"}"; |
1047 | |
4e1523ef |
1048 | TCollection_AsciiString |
1049 | aSrcGetAlpha = EOL"float getAlpha(void) { return occTexture2D(occActiveSampler, TexCoord.st).a; }"; |
1050 | #if !defined(GL_ES_VERSION_2_0) |
1051 | if (myContext->core11 == NULL) |
1052 | { |
1053 | aSrcGetAlpha = EOL"float getAlpha(void) { return occTexture2D(occActiveSampler, TexCoord.st).r; }"; |
1054 | } |
1055 | #endif |
1056 | |
b990e557 |
1057 | TCollection_AsciiString aSrcFrag = TCollection_AsciiString() + |
79f4f036 |
1058 | + EOL"THE_SHADER_IN vec2 TexCoord;" |
4e1523ef |
1059 | + aSrcGetAlpha |
1060 | + EOL"void main()" |
b990e557 |
1061 | EOL"{" |
1062 | EOL" vec4 aColor = occColor;" |
1063 | EOL" aColor.a *= getAlpha();" |
1064 | EOL" if (aColor.a <= 0.285) discard;" |
4e1523ef |
1065 | EOL" occFragColor = aColor;" |
b990e557 |
1066 | EOL"}"; |
8625ef7e |
1067 | |
4e1523ef |
1068 | #if !defined(GL_ES_VERSION_2_0) |
1069 | if (myContext->core32 != NULL) |
1070 | { |
1071 | aProgramSrc->SetHeader ("#version 150"); |
1072 | } |
1073 | #endif |
8625ef7e |
1074 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_VERTEX, aSrcVert)); |
1075 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_FRAGMENT, aSrcFrag)); |
1076 | TCollection_AsciiString aKey; |
1077 | if (!Create (aProgramSrc, aKey, myFontProgram)) |
1078 | { |
1079 | myFontProgram = new OpenGl_ShaderProgram(); // just mark as invalid |
1080 | return Standard_False; |
1081 | } |
1082 | return Standard_True; |
1083 | } |
1084 | |
1085 | // ======================================================================= |
b86bb3df |
1086 | // function : prepareStdProgramFboBlit |
1087 | // purpose : |
1088 | // ======================================================================= |
1089 | Standard_Boolean OpenGl_ShaderManager::prepareStdProgramFboBlit() |
1090 | { |
1091 | Handle(Graphic3d_ShaderProgram) aProgramSrc = new Graphic3d_ShaderProgram(); |
1092 | TCollection_AsciiString aSrcVert = |
1093 | EOL"THE_SHADER_OUT vec2 TexCoord;" |
1094 | EOL"void main()" |
1095 | EOL"{" |
1096 | EOL" TexCoord = occVertex.zw;" |
1097 | EOL" gl_Position = vec4(occVertex.x, occVertex.y, 0.0, 1.0);" |
1098 | EOL"}"; |
1099 | |
1100 | TCollection_AsciiString aSrcFrag = |
1101 | EOL"uniform sampler2D uColorSampler;" |
1102 | EOL"uniform sampler2D uDepthSampler;" |
1103 | EOL |
1104 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1105 | EOL |
1106 | EOL"void main()" |
1107 | EOL"{" |
1108 | EOL" gl_FragDepth = occTexture2D (uDepthSampler, TexCoord).r;" |
1109 | EOL" occFragColor = occTexture2D (uColorSampler, TexCoord);" |
1110 | EOL"}"; |
1111 | |
1112 | #if defined(GL_ES_VERSION_2_0) |
1113 | if (myContext->IsGlGreaterEqual (3, 0)) |
1114 | { |
1115 | aProgramSrc->SetHeader ("#version 300 es"); |
1116 | } |
1117 | else |
1118 | { |
1119 | // there is no way to draw into depth buffer |
1120 | aSrcFrag = |
1121 | EOL"uniform sampler2D uColorSampler;" |
1122 | EOL |
1123 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1124 | EOL |
1125 | EOL"void main()" |
1126 | EOL"{" |
1127 | EOL" occFragColor = occTexture2D (uColorSampler, TexCoord);" |
1128 | EOL"}"; |
1129 | } |
4e1523ef |
1130 | #else |
1131 | if (myContext->core32 != NULL) |
1132 | { |
1133 | aProgramSrc->SetHeader ("#version 150"); |
1134 | } |
b86bb3df |
1135 | #endif |
b86bb3df |
1136 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_VERTEX, aSrcVert)); |
1137 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_FRAGMENT, aSrcFrag)); |
1138 | TCollection_AsciiString aKey; |
1139 | if (!Create (aProgramSrc, aKey, myBlitProgram)) |
1140 | { |
1141 | myBlitProgram = new OpenGl_ShaderProgram(); // just mark as invalid |
1142 | return Standard_False; |
1143 | } |
1144 | |
1145 | myContext->BindProgram (myBlitProgram); |
1146 | myBlitProgram->SetSampler (myContext, "uColorSampler", 0); |
1147 | myBlitProgram->SetSampler (myContext, "uDepthSampler", 1); |
1148 | myContext->BindProgram (NULL); |
1149 | return Standard_True; |
1150 | } |
1151 | |
1152 | // ======================================================================= |
8625ef7e |
1153 | // function : prepareStdProgramFlat |
1154 | // purpose : |
1155 | // ======================================================================= |
1156 | Standard_Boolean OpenGl_ShaderManager::prepareStdProgramFlat (Handle(OpenGl_ShaderProgram)& theProgram, |
1157 | const Standard_Integer theBits) |
1158 | { |
1159 | Handle(Graphic3d_ShaderProgram) aProgramSrc = new Graphic3d_ShaderProgram(); |
e135a155 |
1160 | TCollection_AsciiString aSrcVert, aSrcVertExtraOut, aSrcVertExtraMain, aSrcVertExtraFunc, aSrcFrag, aSrcFragExtraOut, aSrcFragExtraMain; |
8625ef7e |
1161 | TCollection_AsciiString aSrcFragGetColor = EOL"vec4 getColor(void) { return occColor; }"; |
4e1523ef |
1162 | TCollection_AsciiString aSrcFragMainGetColor = EOL" occFragColor = getColor();"; |
8625ef7e |
1163 | if ((theBits & OpenGl_PO_Point) != 0) |
1164 | { |
1165 | #if defined(GL_ES_VERSION_2_0) |
1166 | aSrcVertExtraMain += EOL" gl_PointSize = occPointSize;"; |
1167 | #endif |
1168 | if ((theBits & OpenGl_PO_TextureA) != 0) |
1169 | { |
4e1523ef |
1170 | TCollection_AsciiString |
1171 | aSrcGetAlpha = EOL"float getAlpha(void) { return occTexture2D(occActiveSampler, gl_PointCoord).a; }"; |
1172 | #if !defined(GL_ES_VERSION_2_0) |
1173 | if (myContext->core11 == NULL) |
1174 | { |
1175 | aSrcGetAlpha = EOL"float getAlpha(void) { return occTexture2D(occActiveSampler, gl_PointCoord).r; }"; |
1176 | } |
15478b1b |
1177 | else if (myContext->IsGlGreaterEqual (2, 1)) |
1178 | { |
1179 | aProgramSrc->SetHeader ("#version 120"); // gl_PointCoord has been added since GLSL 1.2 |
1180 | } |
4e1523ef |
1181 | #endif |
1182 | |
1183 | aSrcFragGetColor = aSrcGetAlpha |
1184 | + EOL"vec4 getColor(void)" |
8625ef7e |
1185 | EOL"{" |
1186 | EOL" vec4 aColor = occColor;" |
1187 | EOL" aColor.a *= getAlpha();" |
1188 | EOL" return aColor;" |
1189 | EOL"}"; |
1190 | |
1191 | aSrcFragMainGetColor = |
1192 | EOL" vec4 aColor = getColor();" |
1193 | EOL" if (aColor.a <= 0.1) discard;" |
4e1523ef |
1194 | EOL" occFragColor = aColor;"; |
8625ef7e |
1195 | } |
1196 | else if ((theBits & OpenGl_PO_TextureRGB) != 0) |
1197 | { |
1198 | aSrcFragGetColor = |
4e1523ef |
1199 | EOL"vec4 getColor(void) { return occTexture2D(occActiveSampler, gl_PointCoord); }"; |
8625ef7e |
1200 | aSrcFragMainGetColor = |
1201 | EOL" vec4 aColor = getColor();" |
1202 | EOL" if (aColor.a <= 0.1) discard;" |
4e1523ef |
1203 | EOL" occFragColor = aColor;"; |
15478b1b |
1204 | #if !defined(GL_ES_VERSION_2_0) |
1205 | if (myContext->core11 != NULL |
1206 | && myContext->IsGlGreaterEqual (2, 1)) |
1207 | { |
1208 | aProgramSrc->SetHeader ("#version 120"); // gl_PointCoord has been added since GLSL 1.2 |
1209 | } |
1210 | #endif |
8625ef7e |
1211 | } |
1212 | } |
6c6aadb1 |
1213 | else |
1214 | { |
1215 | if ((theBits & OpenGl_PO_TextureRGB) != 0) |
1216 | { |
4e1523ef |
1217 | aSrcVertExtraOut += THE_VARY_TexCoord_OUT; |
1218 | aSrcFragExtraOut += THE_VARY_TexCoord_IN; |
79f4f036 |
1219 | aSrcVertExtraMain += THE_VARY_TexCoord_Trsf; |
6c6aadb1 |
1220 | |
1221 | aSrcFragGetColor = |
79f4f036 |
1222 | EOL"vec4 getColor(void) { return occTexture2D(occActiveSampler, TexCoord.st / TexCoord.w); }"; |
6c6aadb1 |
1223 | } |
e135a155 |
1224 | else if ((theBits & OpenGl_PO_TextureEnv) != 0) |
1225 | { |
1226 | aSrcVertExtraOut += THE_VARY_TexCoord_OUT; |
1227 | aSrcFragExtraOut += THE_VARY_TexCoord_IN; |
1228 | |
1229 | aSrcVertExtraFunc = THE_FUNC_transformNormal; |
1230 | |
1231 | aSrcVertExtraMain += |
1232 | EOL" vec4 aPosition = occWorldViewMatrix * occModelWorldMatrix * occVertex;" |
1233 | EOL" vec3 aNormal = transformNormal (occNormal);" |
1234 | EOL" vec3 aReflect = reflect (normalize (aPosition.xyz), aNormal);" |
1235 | EOL" aReflect.z += 1.0;" |
1236 | EOL" TexCoord = aReflect.xy * inversesqrt (dot (aReflect, aReflect)) * 0.5 + vec2 (0.5);"; |
1237 | |
1238 | aSrcFragGetColor = |
1239 | EOL"vec4 getColor(void) { return occTexture2D (occActiveSampler, TexCoord.st); }"; |
1240 | } |
6c6aadb1 |
1241 | } |
8625ef7e |
1242 | if ((theBits & OpenGl_PO_VertColor) != 0) |
1243 | { |
4e1523ef |
1244 | aSrcVertExtraOut += EOL"THE_SHADER_OUT vec4 VertColor;"; |
8625ef7e |
1245 | aSrcVertExtraMain += EOL" VertColor = occVertColor;"; |
4e1523ef |
1246 | aSrcFragExtraOut += EOL"THE_SHADER_IN vec4 VertColor;"; |
8625ef7e |
1247 | aSrcFragGetColor = EOL"vec4 getColor(void) { return VertColor; }"; |
1248 | } |
1249 | if ((theBits & OpenGl_PO_ClipPlanes) != 0) |
1250 | { |
4e1523ef |
1251 | aSrcVertExtraOut += |
1252 | EOL"THE_SHADER_OUT vec4 PositionWorld;" |
1253 | EOL"THE_SHADER_OUT vec4 Position;"; |
1254 | aSrcFragExtraOut += |
1255 | EOL"THE_SHADER_IN vec4 PositionWorld;" |
1256 | EOL"THE_SHADER_IN vec4 Position;"; |
8625ef7e |
1257 | aSrcVertExtraMain += |
1258 | EOL" PositionWorld = occModelWorldMatrix * occVertex;" |
1259 | EOL" Position = occWorldViewMatrix * PositionWorld;"; |
1260 | aSrcFragExtraMain += THE_FRAG_CLIP_PLANES; |
1261 | } |
1262 | |
ac116c22 |
1263 | TCollection_AsciiString aSrcVertEndMain; |
1264 | if ((theBits & OpenGl_PO_StippleLine) != 0) |
1265 | { |
959a265a |
1266 | bool hasGlslBitOps = false; |
ac116c22 |
1267 | #if defined(GL_ES_VERSION_2_0) |
1268 | if (myContext->IsGlGreaterEqual (3, 0)) |
1269 | { |
1270 | aProgramSrc->SetHeader ("#version 300 es"); |
959a265a |
1271 | hasGlslBitOps = true; |
ac116c22 |
1272 | } |
1273 | #else |
959a265a |
1274 | if (myContext->IsGlGreaterEqual (3, 0)) |
1275 | { |
1276 | aProgramSrc->SetHeader ("#version 130"); |
1277 | hasGlslBitOps = true; |
1278 | } |
1279 | else if(myContext->CheckExtension("GL_EXT_gpu_shader4")) |
ac116c22 |
1280 | { |
959a265a |
1281 | aProgramSrc->SetHeader ("#extension GL_EXT_gpu_shader4 : enable"); |
1282 | hasGlslBitOps = true; |
ac116c22 |
1283 | } |
1284 | #endif |
1285 | |
959a265a |
1286 | if (hasGlslBitOps) |
ac116c22 |
1287 | { |
1288 | aSrcVertExtraOut += |
1289 | EOL"THE_SHADER_OUT vec2 ScreenSpaceCoord;"; |
1290 | aSrcFragExtraOut += |
1291 | EOL"THE_SHADER_IN vec2 ScreenSpaceCoord;" |
1292 | EOL"uniform int uPattern;" |
1293 | EOL"uniform float uFactor;"; |
1294 | aSrcVertEndMain = |
1295 | EOL" ScreenSpaceCoord = gl_Position.xy / gl_Position.w;"; |
1296 | aSrcFragMainGetColor = |
1297 | EOL" float anAngle = atan (dFdx (ScreenSpaceCoord.x), dFdy (ScreenSpaceCoord.y));" |
1298 | EOL" float aRotatePoint = gl_FragCoord.x * sin (anAngle) + gl_FragCoord.y * cos (anAngle);" |
1299 | EOL" uint aBit = uint (floor (aRotatePoint / uFactor + 0.5)) & 15U;" |
1300 | EOL" if ((uint (uPattern) & (1U << aBit)) == 0U) discard;" |
1301 | EOL" vec4 aColor = getColor();" |
1302 | EOL" if (aColor.a <= 0.1) discard;" |
1303 | EOL" occFragColor = aColor;"; |
1304 | } |
1305 | else |
1306 | { |
1307 | const TCollection_ExtendedString aWarnMessage = |
1308 | "Warning: stipple lines in GLSL will be ignored."; |
3b523c4c |
1309 | myContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
1310 | GL_DEBUG_TYPE_PORTABILITY, 0, GL_DEBUG_SEVERITY_HIGH, aWarnMessage); |
ac116c22 |
1311 | } |
1312 | } |
1313 | |
8625ef7e |
1314 | aSrcVert = |
e135a155 |
1315 | aSrcVertExtraFunc |
1316 | + aSrcVertExtraOut |
8625ef7e |
1317 | + EOL"void main()" |
1318 | EOL"{" |
1319 | + aSrcVertExtraMain |
1320 | + EOL" gl_Position = occProjectionMatrix * occWorldViewMatrix * occModelWorldMatrix * occVertex;" |
ac116c22 |
1321 | + aSrcVertEndMain |
1322 | + EOL"}"; |
8625ef7e |
1323 | |
1324 | aSrcFrag = |
1325 | aSrcFragExtraOut |
1326 | + aSrcFragGetColor |
1327 | + EOL"void main()" |
1328 | EOL"{" |
1329 | + aSrcFragExtraMain |
1330 | + aSrcFragMainGetColor |
1331 | + EOL"}"; |
1332 | |
4e1523ef |
1333 | #if !defined(GL_ES_VERSION_2_0) |
1334 | if (myContext->core32 != NULL) |
1335 | { |
1336 | aProgramSrc->SetHeader ("#version 150"); |
1337 | } |
1338 | #endif |
8625ef7e |
1339 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_VERTEX, aSrcVert)); |
1340 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_FRAGMENT, aSrcFrag)); |
1341 | |
1342 | TCollection_AsciiString aKey; |
1343 | if (!Create (aProgramSrc, aKey, theProgram)) |
1344 | { |
1345 | theProgram = new OpenGl_ShaderProgram(); // just mark as invalid |
1346 | return Standard_False; |
1347 | } |
1348 | return Standard_True; |
1349 | } |
1350 | |
256f9ac0 |
1351 | // ======================================================================= |
1352 | // function : stdComputeLighting |
1353 | // purpose : |
1354 | // ======================================================================= |
abdf0b10 |
1355 | TCollection_AsciiString OpenGl_ShaderManager::stdComputeLighting (const Standard_Boolean theHasVertColor) |
256f9ac0 |
1356 | { |
c357e426 |
1357 | bool aLightsMap[Graphic3d_TOLS_SPOT + 1] = { false, false, false, false }; |
256f9ac0 |
1358 | TCollection_AsciiString aLightsFunc, aLightsLoop; |
1359 | const OpenGl_ListOfLight* aLights = myLightSourceState.LightSources(); |
1360 | if (aLights != NULL) |
1361 | { |
1362 | Standard_Integer anIndex = 0; |
1363 | for (OpenGl_ListOfLight::Iterator aLightIter (*aLights); aLightIter.More(); aLightIter.Next(), ++anIndex) |
1364 | { |
1365 | switch (aLightIter.Value().Type) |
1366 | { |
c357e426 |
1367 | case Graphic3d_TOLS_AMBIENT: |
256f9ac0 |
1368 | --anIndex; |
1369 | break; // skip ambient |
c357e426 |
1370 | case Graphic3d_TOLS_DIRECTIONAL: |
256f9ac0 |
1371 | aLightsLoop = aLightsLoop + EOL" directionalLight (" + anIndex + ", theNormal, theView, theIsFront);"; |
1372 | break; |
c357e426 |
1373 | case Graphic3d_TOLS_POSITIONAL: |
256f9ac0 |
1374 | aLightsLoop = aLightsLoop + EOL" pointLight (" + anIndex + ", theNormal, theView, aPoint, theIsFront);"; |
1375 | break; |
c357e426 |
1376 | case Graphic3d_TOLS_SPOT: |
256f9ac0 |
1377 | aLightsLoop = aLightsLoop + EOL" spotLight (" + anIndex + ", theNormal, theView, aPoint, theIsFront);"; |
1378 | break; |
1379 | } |
1380 | |
1381 | bool& aTypeBit = aLightsMap[aLightIter.Value().Type]; |
1382 | if (aTypeBit) |
1383 | { |
1384 | continue; |
1385 | } |
1386 | |
1387 | aTypeBit = true; |
1388 | switch (aLightIter.Value().Type) |
1389 | { |
c357e426 |
1390 | case Graphic3d_TOLS_AMBIENT: break; |
1391 | case Graphic3d_TOLS_DIRECTIONAL: aLightsFunc += THE_FUNC_directionalLight; break; |
1392 | case Graphic3d_TOLS_POSITIONAL: aLightsFunc += THE_FUNC_pointLight; break; |
1393 | case Graphic3d_TOLS_SPOT: aLightsFunc += THE_FUNC_spotLight; break; |
256f9ac0 |
1394 | } |
1395 | } |
1396 | } |
1397 | |
abdf0b10 |
1398 | TCollection_AsciiString aGetMatAmbient = "theIsFront ? occFrontMaterial_Ambient() : occBackMaterial_Ambient();"; |
1399 | TCollection_AsciiString aGetMatDiffuse = "theIsFront ? occFrontMaterial_Diffuse() : occBackMaterial_Diffuse();"; |
1400 | if (theHasVertColor) |
1401 | { |
1402 | aGetMatAmbient = "getVertColor();"; |
1403 | aGetMatDiffuse = "getVertColor();"; |
1404 | } |
1405 | |
256f9ac0 |
1406 | return TCollection_AsciiString() |
1407 | + THE_FUNC_lightDef |
1408 | + aLightsFunc |
1409 | + EOL |
1410 | EOL"vec4 computeLighting (in vec3 theNormal," |
1411 | EOL" in vec3 theView," |
1412 | EOL" in vec4 thePoint," |
1413 | EOL" in bool theIsFront)" |
1414 | EOL"{" |
1415 | EOL" Ambient = occLightAmbient.rgb;" |
1416 | EOL" Diffuse = vec3 (0.0);" |
1417 | EOL" Specular = vec3 (0.0);" |
1418 | EOL" vec3 aPoint = thePoint.xyz / thePoint.w;" |
1419 | + aLightsLoop |
363bc51b |
1420 | + EOL" vec4 aMatAmbient = " + aGetMatAmbient |
1421 | + EOL" vec4 aMatDiffuse = " + aGetMatDiffuse |
1422 | + EOL" vec4 aMatSpecular = theIsFront ? occFrontMaterial_Specular() : occBackMaterial_Specular();" |
1423 | EOL" vec4 aMatEmission = theIsFront ? occFrontMaterial_Emission() : occBackMaterial_Emission();" |
1424 | EOL" vec3 aColor = Ambient * aMatAmbient.rgb" |
1425 | EOL" + Diffuse * aMatDiffuse.rgb" |
1426 | EOL" + Specular * aMatSpecular.rgb" |
1427 | EOL" + aMatEmission.rgb;" |
1428 | EOL" return vec4 (aColor, aMatDiffuse.a);" |
256f9ac0 |
1429 | EOL"}"; |
1430 | } |
1431 | |
8625ef7e |
1432 | // ======================================================================= |
1433 | // function : prepareStdProgramGouraud |
1434 | // purpose : |
1435 | // ======================================================================= |
1436 | Standard_Boolean OpenGl_ShaderManager::prepareStdProgramGouraud (Handle(OpenGl_ShaderProgram)& theProgram, |
1437 | const Standard_Integer theBits) |
1438 | { |
1439 | Handle(Graphic3d_ShaderProgram) aProgramSrc = new Graphic3d_ShaderProgram(); |
abdf0b10 |
1440 | TCollection_AsciiString aSrcVert, aSrcVertColor, aSrcVertExtraOut, aSrcVertExtraMain, aSrcFrag, aSrcFragExtraOut, aSrcFragExtraMain; |
6c6aadb1 |
1441 | TCollection_AsciiString aSrcFragGetColor = EOL"vec4 getColor(void) { return gl_FrontFacing ? FrontColor : BackColor; }"; |
8625ef7e |
1442 | if ((theBits & OpenGl_PO_Point) != 0) |
1443 | { |
1444 | #if defined(GL_ES_VERSION_2_0) |
1445 | aSrcVertExtraMain += EOL" gl_PointSize = occPointSize;"; |
1446 | #endif |
1447 | } |
abdf0b10 |
1448 | if ((theBits & OpenGl_PO_VertColor) != 0) |
1449 | { |
1450 | aSrcVertColor = EOL"vec4 getVertColor(void) { return occVertColor; }"; |
1451 | } |
6c6aadb1 |
1452 | if ((theBits & OpenGl_PO_Point) != 0) |
1453 | { |
1454 | if ((theBits & OpenGl_PO_TextureRGB) != 0) |
1455 | { |
1456 | aSrcFragGetColor = |
1457 | EOL"vec4 getColor(void)" |
1458 | EOL"{" |
1459 | EOL" vec4 aColor = gl_FrontFacing ? FrontColor : BackColor;" |
4e1523ef |
1460 | EOL" return occTexture2D(occActiveSampler, gl_PointCoord) * aColor;" |
6c6aadb1 |
1461 | EOL"}"; |
15478b1b |
1462 | #if !defined(GL_ES_VERSION_2_0) |
1463 | if (myContext->core11 != NULL |
1464 | && myContext->IsGlGreaterEqual (2, 1)) |
1465 | { |
1466 | aProgramSrc->SetHeader ("#version 120"); // gl_PointCoord has been added since GLSL 1.2 |
1467 | } |
1468 | #endif |
6c6aadb1 |
1469 | } |
1470 | } |
1471 | else |
1472 | { |
1473 | if ((theBits & OpenGl_PO_TextureRGB) != 0) |
1474 | { |
4e1523ef |
1475 | aSrcVertExtraOut += THE_VARY_TexCoord_OUT; |
1476 | aSrcFragExtraOut += THE_VARY_TexCoord_IN; |
79f4f036 |
1477 | aSrcVertExtraMain += THE_VARY_TexCoord_Trsf; |
6c6aadb1 |
1478 | |
1479 | aSrcFragGetColor = |
1480 | EOL"vec4 getColor(void)" |
1481 | EOL"{" |
1482 | EOL" vec4 aColor = gl_FrontFacing ? FrontColor : BackColor;" |
79f4f036 |
1483 | EOL" return occTexture2D(occActiveSampler, TexCoord.st / TexCoord.w) * aColor;" |
6c6aadb1 |
1484 | EOL"}"; |
1485 | } |
1486 | } |
8625ef7e |
1487 | if ((theBits & OpenGl_PO_ClipPlanes) != 0) |
1488 | { |
4e1523ef |
1489 | aSrcVertExtraOut += |
1490 | EOL"THE_SHADER_OUT vec4 PositionWorld;" |
1491 | EOL"THE_SHADER_OUT vec4 Position;"; |
1492 | aSrcFragExtraOut += |
1493 | EOL"THE_SHADER_IN vec4 PositionWorld;" |
1494 | EOL"THE_SHADER_IN vec4 Position;"; |
8625ef7e |
1495 | aSrcVertExtraMain += |
1496 | EOL" PositionWorld = aPositionWorld;" |
1497 | EOL" Position = aPosition;"; |
1498 | aSrcFragExtraMain += THE_FRAG_CLIP_PLANES; |
1499 | } |
1500 | |
abdf0b10 |
1501 | const TCollection_AsciiString aLights = stdComputeLighting ((theBits & OpenGl_PO_VertColor) != 0); |
8625ef7e |
1502 | aSrcVert = TCollection_AsciiString() |
1503 | + THE_FUNC_transformNormal |
1504 | + EOL |
abdf0b10 |
1505 | + aSrcVertColor |
256f9ac0 |
1506 | + aLights |
8625ef7e |
1507 | + EOL |
4e1523ef |
1508 | EOL"THE_SHADER_OUT vec4 FrontColor;" |
1509 | EOL"THE_SHADER_OUT vec4 BackColor;" |
8625ef7e |
1510 | EOL |
1511 | + aSrcVertExtraOut |
1512 | + EOL"void main()" |
1513 | EOL"{" |
1514 | EOL" vec4 aPositionWorld = occModelWorldMatrix * occVertex;" |
1515 | EOL" vec4 aPosition = occWorldViewMatrix * aPositionWorld;" |
1516 | EOL" vec3 aNormal = transformNormal (occNormal);" |
1517 | EOL" vec3 aView = vec3 (0.0, 0.0, 1.0);" |
1518 | EOL" FrontColor = computeLighting (normalize (aNormal), normalize (aView), aPosition, true);" |
1519 | EOL" BackColor = computeLighting (normalize (aNormal), normalize (aView), aPosition, false);" |
1520 | + aSrcVertExtraMain |
1521 | + EOL" gl_Position = occProjectionMatrix * occWorldViewMatrix * occModelWorldMatrix * occVertex;" |
1522 | EOL"}"; |
1523 | |
1524 | aSrcFrag = TCollection_AsciiString() |
4e1523ef |
1525 | + EOL"THE_SHADER_IN vec4 FrontColor;" |
1526 | EOL"THE_SHADER_IN vec4 BackColor;" |
8625ef7e |
1527 | + aSrcFragExtraOut |
6c6aadb1 |
1528 | + aSrcFragGetColor |
8625ef7e |
1529 | + EOL"void main()" |
1530 | EOL"{" |
1531 | + aSrcFragExtraMain |
4e1523ef |
1532 | + EOL" occFragColor = getColor();" |
8625ef7e |
1533 | EOL"}"; |
1534 | |
4e1523ef |
1535 | #if !defined(GL_ES_VERSION_2_0) |
1536 | if (myContext->core32 != NULL) |
1537 | { |
1538 | aProgramSrc->SetHeader ("#version 150"); |
1539 | } |
1540 | #endif |
8625ef7e |
1541 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_VERTEX, aSrcVert)); |
1542 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_FRAGMENT, aSrcFrag)); |
1543 | TCollection_AsciiString aKey; |
1544 | if (!Create (aProgramSrc, aKey, theProgram)) |
1545 | { |
1546 | theProgram = new OpenGl_ShaderProgram(); // just mark as invalid |
1547 | return Standard_False; |
1548 | } |
1549 | return Standard_True; |
1550 | } |
1551 | |
1552 | // ======================================================================= |
1553 | // function : prepareStdProgramPhong |
1554 | // purpose : |
1555 | // ======================================================================= |
1556 | Standard_Boolean OpenGl_ShaderManager::prepareStdProgramPhong (Handle(OpenGl_ShaderProgram)& theProgram, |
1557 | const Standard_Integer theBits) |
1558 | { |
6c6aadb1 |
1559 | #define thePhongCompLight "computeLighting (normalize (Normal), normalize (View), Position, gl_FrontFacing)" |
1560 | |
8625ef7e |
1561 | Handle(Graphic3d_ShaderProgram) aProgramSrc = new Graphic3d_ShaderProgram(); |
6c6aadb1 |
1562 | TCollection_AsciiString aSrcVert, aSrcVertExtraOut, aSrcVertExtraMain, aSrcFrag, aSrcFragExtraOut, aSrcFragGetVertColor, aSrcFragExtraMain; |
1563 | TCollection_AsciiString aSrcFragGetColor = EOL"vec4 getColor(void) { return " thePhongCompLight "; }"; |
8625ef7e |
1564 | if ((theBits & OpenGl_PO_Point) != 0) |
1565 | { |
1566 | #if defined(GL_ES_VERSION_2_0) |
1567 | aSrcVertExtraMain += EOL" gl_PointSize = occPointSize;"; |
1568 | #endif |
1569 | } |
abdf0b10 |
1570 | if ((theBits & OpenGl_PO_VertColor) != 0) |
1571 | { |
7e859dff |
1572 | aSrcVertExtraOut += EOL"THE_SHADER_OUT vec4 VertColor;"; |
1573 | aSrcVertExtraMain += EOL" VertColor = occVertColor;"; |
1574 | aSrcFragGetVertColor = EOL"THE_SHADER_IN vec4 VertColor;" |
1575 | EOL"vec4 getVertColor(void) { return VertColor; }"; |
abdf0b10 |
1576 | } |
6c6aadb1 |
1577 | |
1578 | if ((theBits & OpenGl_PO_Point) != 0) |
1579 | { |
1580 | if ((theBits & OpenGl_PO_TextureRGB) != 0) |
1581 | { |
1582 | aSrcFragGetColor = |
1583 | EOL"vec4 getColor(void)" |
1584 | EOL"{" |
1585 | EOL" vec4 aColor = " thePhongCompLight ";" |
4e1523ef |
1586 | EOL" return occTexture2D(occActiveSampler, gl_PointCoord) * aColor;" |
6c6aadb1 |
1587 | EOL"}"; |
15478b1b |
1588 | #if !defined(GL_ES_VERSION_2_0) |
1589 | if (myContext->core11 != NULL |
1590 | && myContext->IsGlGreaterEqual (2, 1)) |
1591 | { |
1592 | aProgramSrc->SetHeader ("#version 120"); // gl_PointCoord has been added since GLSL 1.2 |
1593 | } |
1594 | #endif |
6c6aadb1 |
1595 | } |
1596 | } |
1597 | else |
1598 | { |
1599 | if ((theBits & OpenGl_PO_TextureRGB) != 0) |
1600 | { |
4e1523ef |
1601 | aSrcVertExtraOut += THE_VARY_TexCoord_OUT; |
1602 | aSrcFragExtraOut += THE_VARY_TexCoord_IN; |
79f4f036 |
1603 | aSrcVertExtraMain += THE_VARY_TexCoord_Trsf; |
6c6aadb1 |
1604 | |
1605 | aSrcFragGetColor = |
1606 | EOL"vec4 getColor(void)" |
1607 | EOL"{" |
1608 | EOL" vec4 aColor = " thePhongCompLight ";" |
79f4f036 |
1609 | EOL" return occTexture2D(occActiveSampler, TexCoord.st / TexCoord.w) * aColor;" |
6c6aadb1 |
1610 | EOL"}"; |
1611 | } |
1612 | } |
1613 | |
8625ef7e |
1614 | if ((theBits & OpenGl_PO_ClipPlanes) != 0) |
1615 | { |
1616 | aSrcFragExtraMain += THE_FRAG_CLIP_PLANES; |
1617 | } |
1618 | |
1619 | aSrcVert = TCollection_AsciiString() |
1620 | + THE_FUNC_transformNormal |
1621 | + EOL |
4e1523ef |
1622 | EOL"THE_SHADER_OUT vec4 PositionWorld;" |
1623 | EOL"THE_SHADER_OUT vec4 Position;" |
1624 | EOL"THE_SHADER_OUT vec3 Normal;" |
1625 | EOL"THE_SHADER_OUT vec3 View;" |
8625ef7e |
1626 | EOL |
1627 | + aSrcVertExtraOut |
1628 | + EOL"void main()" |
1629 | EOL"{" |
1630 | EOL" PositionWorld = occModelWorldMatrix * occVertex;" |
1631 | EOL" Position = occWorldViewMatrix * PositionWorld;" |
1632 | EOL" Normal = transformNormal (occNormal);" |
1633 | EOL" View = vec3 (0.0, 0.0, 1.0);" |
1634 | + aSrcVertExtraMain |
1635 | + EOL" gl_Position = occProjectionMatrix * occWorldViewMatrix * occModelWorldMatrix * occVertex;" |
1636 | EOL"}"; |
1637 | |
abdf0b10 |
1638 | const TCollection_AsciiString aLights = stdComputeLighting ((theBits & OpenGl_PO_VertColor) != 0); |
8625ef7e |
1639 | aSrcFrag = TCollection_AsciiString() |
4e1523ef |
1640 | + EOL"THE_SHADER_IN vec4 PositionWorld;" |
1641 | EOL"THE_SHADER_IN vec4 Position;" |
1642 | EOL"THE_SHADER_IN vec3 Normal;" |
1643 | EOL"THE_SHADER_IN vec3 View;" |
8625ef7e |
1644 | + EOL |
6c6aadb1 |
1645 | + aSrcFragExtraOut |
1646 | + aSrcFragGetVertColor |
256f9ac0 |
1647 | + aLights |
6c6aadb1 |
1648 | + aSrcFragGetColor |
8625ef7e |
1649 | + EOL |
1650 | EOL"void main()" |
1651 | EOL"{" |
1652 | + aSrcFragExtraMain |
4e1523ef |
1653 | + EOL" occFragColor = getColor();" |
8625ef7e |
1654 | EOL"}"; |
1655 | |
4e1523ef |
1656 | #if !defined(GL_ES_VERSION_2_0) |
1657 | if (myContext->core32 != NULL) |
1658 | { |
1659 | aProgramSrc->SetHeader ("#version 150"); |
1660 | } |
1661 | #endif |
8625ef7e |
1662 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_VERTEX, aSrcVert)); |
1663 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_FRAGMENT, aSrcFrag)); |
1664 | TCollection_AsciiString aKey; |
1665 | if (!Create (aProgramSrc, aKey, theProgram)) |
1666 | { |
1667 | theProgram = new OpenGl_ShaderProgram(); // just mark as invalid |
1668 | return Standard_False; |
1669 | } |
1670 | return Standard_True; |
1671 | } |
1672 | |
38a0206f |
1673 | // ======================================================================= |
f978241f |
1674 | // function : prepareStdProgramStereo |
38a0206f |
1675 | // purpose : |
1676 | // ======================================================================= |
f978241f |
1677 | Standard_Boolean OpenGl_ShaderManager::prepareStdProgramStereo (Handle(OpenGl_ShaderProgram)& theProgram, |
1678 | const Graphic3d_StereoMode theStereoMode) |
38a0206f |
1679 | { |
1680 | Handle(Graphic3d_ShaderProgram) aProgramSrc = new Graphic3d_ShaderProgram(); |
1681 | TCollection_AsciiString aSrcVert = |
1682 | EOL"THE_SHADER_OUT vec2 TexCoord;" |
1683 | EOL"void main()" |
1684 | EOL"{" |
1685 | EOL" TexCoord = occVertex.zw;" |
1686 | EOL" gl_Position = vec4(occVertex.x, occVertex.y, 0.0, 1.0);" |
1687 | EOL"}"; |
1688 | |
f978241f |
1689 | TCollection_AsciiString aSrcFrag; |
1690 | switch (theStereoMode) |
1691 | { |
1692 | case Graphic3d_StereoMode_Anaglyph: |
1693 | { |
1694 | aSrcFrag = |
1695 | EOL"uniform sampler2D uLeftSampler;" |
1696 | EOL"uniform sampler2D uRightSampler;" |
1697 | EOL |
1698 | EOL"uniform mat4 uMultL;" |
1699 | EOL"uniform mat4 uMultR;" |
1700 | EOL |
1701 | EOL"vec4 THE_POW_UP = vec4 (2.2, 2.2, 2.2, 1.0);" |
1702 | EOL"vec4 THE_POW_DOWN = 1.0 / THE_POW_UP;" |
1703 | EOL |
1704 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1705 | EOL |
1706 | EOL"void main()" |
1707 | EOL"{" |
1708 | EOL" vec4 aColorL = occTexture2D (uLeftSampler, TexCoord);" |
1709 | EOL" vec4 aColorR = occTexture2D (uRightSampler, TexCoord);" |
1710 | EOL" aColorL = pow (aColorL, THE_POW_UP);" // normalize |
1711 | EOL" aColorR = pow (aColorR, THE_POW_UP);" |
1712 | EOL" vec4 aColor = uMultR * aColorR + uMultL * aColorL;" |
1713 | EOL" occFragColor = pow (aColor, THE_POW_DOWN);" |
1714 | EOL"}"; |
1715 | break; |
1716 | } |
1717 | case Graphic3d_StereoMode_RowInterlaced: |
1718 | { |
1719 | aSrcFrag = |
1720 | EOL"uniform sampler2D uLeftSampler;" |
1721 | EOL"uniform sampler2D uRightSampler;" |
1722 | EOL |
1723 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1724 | EOL |
1725 | EOL"void main()" |
1726 | EOL"{" |
1727 | EOL" vec4 aColorL = occTexture2D (uLeftSampler, TexCoord);" |
1728 | EOL" vec4 aColorR = occTexture2D (uRightSampler, TexCoord);" |
6e66a3fa |
1729 | EOL" if (int (mod (gl_FragCoord.y - 1023.5, 2.0)) != 1)" |
f978241f |
1730 | EOL" {" |
1731 | EOL" occFragColor = aColorL;" |
1732 | EOL" }" |
1733 | EOL" else" |
1734 | EOL" {" |
1735 | EOL" occFragColor = aColorR;" |
1736 | EOL" }" |
1737 | EOL"}"; |
1738 | break; |
1739 | } |
1740 | case Graphic3d_StereoMode_ColumnInterlaced: |
1741 | { |
1742 | aSrcFrag = |
1743 | EOL"uniform sampler2D uLeftSampler;" |
1744 | EOL"uniform sampler2D uRightSampler;" |
1745 | EOL |
1746 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1747 | EOL |
1748 | EOL"void main()" |
1749 | EOL"{" |
1750 | EOL" vec4 aColorL = occTexture2D (uLeftSampler, TexCoord);" |
1751 | EOL" vec4 aColorR = occTexture2D (uRightSampler, TexCoord);" |
6e66a3fa |
1752 | EOL" if (int (mod (gl_FragCoord.x - 1023.5, 2.0)) == 1)" |
f978241f |
1753 | EOL" {" |
1754 | EOL" occFragColor = aColorL;" |
1755 | EOL" }" |
1756 | EOL" else" |
1757 | EOL" {" |
1758 | EOL" occFragColor = aColorR;" |
1759 | EOL" }" |
1760 | EOL"}"; |
1761 | break; |
1762 | } |
1763 | case Graphic3d_StereoMode_ChessBoard: |
1764 | { |
1765 | aSrcFrag = |
1766 | EOL"uniform sampler2D uLeftSampler;" |
1767 | EOL"uniform sampler2D uRightSampler;" |
1768 | EOL |
1769 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1770 | EOL |
1771 | EOL"void main()" |
1772 | EOL"{" |
1773 | EOL" vec4 aColorL = occTexture2D (uLeftSampler, TexCoord);" |
1774 | EOL" vec4 aColorR = occTexture2D (uRightSampler, TexCoord);" |
6e66a3fa |
1775 | EOL" bool isEvenX = int(mod(floor(gl_FragCoord.x - 1023.5), 2.0)) != 1;" |
1776 | EOL" bool isEvenY = int(mod(floor(gl_FragCoord.y - 1023.5), 2.0)) == 1;" |
f978241f |
1777 | EOL" if ((isEvenX && isEvenY) || (!isEvenX && !isEvenY))" |
1778 | EOL" {" |
1779 | EOL" occFragColor = aColorL;" |
1780 | EOL" }" |
1781 | EOL" else" |
1782 | EOL" {" |
1783 | EOL" occFragColor = aColorR;" |
1784 | EOL" }" |
1785 | EOL"}"; |
1786 | break; |
1787 | } |
1788 | case Graphic3d_StereoMode_SideBySide: |
1789 | { |
1790 | aSrcFrag = |
1791 | EOL"uniform sampler2D uLeftSampler;" |
1792 | EOL"uniform sampler2D uRightSampler;" |
1793 | EOL |
1794 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1795 | EOL |
1796 | EOL"void main()" |
1797 | EOL"{" |
1798 | EOL" vec2 aTexCoord = vec2 (TexCoord.x * 2.0, TexCoord.y);" |
1799 | EOL" if (TexCoord.x > 0.5)" |
1800 | EOL" {" |
1801 | EOL" aTexCoord.x -= 1.0;" |
1802 | EOL" }" |
1803 | EOL" vec4 aColorL = occTexture2D (uLeftSampler, aTexCoord);" |
1804 | EOL" vec4 aColorR = occTexture2D (uRightSampler, aTexCoord);" |
1805 | EOL" if (TexCoord.x <= 0.5)" |
1806 | EOL" {" |
1807 | EOL" occFragColor = aColorL;" |
1808 | EOL" }" |
1809 | EOL" else" |
1810 | EOL" {" |
1811 | EOL" occFragColor = aColorR;" |
1812 | EOL" }" |
1813 | EOL"}"; |
1814 | break; |
1815 | } |
1816 | case Graphic3d_StereoMode_OverUnder: |
1817 | { |
1818 | aSrcFrag = |
1819 | EOL"uniform sampler2D uLeftSampler;" |
1820 | EOL"uniform sampler2D uRightSampler;" |
1821 | EOL |
1822 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1823 | EOL |
1824 | EOL"void main()" |
1825 | EOL"{" |
1826 | EOL" vec2 aTexCoord = vec2 (TexCoord.x, TexCoord.y * 2.0);" |
1827 | EOL" if (TexCoord.y > 0.5)" |
1828 | EOL" {" |
1829 | EOL" aTexCoord.y -= 1.0;" |
1830 | EOL" }" |
1831 | EOL" vec4 aColorL = occTexture2D (uLeftSampler, aTexCoord);" |
1832 | EOL" vec4 aColorR = occTexture2D (uRightSampler, aTexCoord);" |
1833 | EOL" if (TexCoord.y <= 0.5)" |
1834 | EOL" {" |
1835 | EOL" occFragColor = aColorL;" |
1836 | EOL" }" |
1837 | EOL" else" |
1838 | EOL" {" |
1839 | EOL" occFragColor = aColorR;" |
1840 | EOL" }" |
1841 | EOL"}"; |
1842 | break; |
1843 | } |
1844 | case Graphic3d_StereoMode_QuadBuffer: |
1845 | case Graphic3d_StereoMode_SoftPageFlip: |
1846 | default: |
1847 | { |
1848 | /*const Handle(OpenGl_ShaderProgram)& aProgram = myStereoPrograms[Graphic3d_StereoMode_QuadBuffer]; |
1849 | if (!aProgram.IsNull()) |
1850 | { |
1851 | return aProgram->IsValid(); |
1852 | }*/ |
1853 | aSrcFrag = |
1854 | EOL"uniform sampler2D uLeftSampler;" |
1855 | EOL"uniform sampler2D uRightSampler;" |
1856 | EOL |
1857 | EOL"THE_SHADER_IN vec2 TexCoord;" |
1858 | EOL |
1859 | EOL"void main()" |
1860 | EOL"{" |
1861 | EOL" vec4 aColorL = occTexture2D (uLeftSampler, TexCoord);" |
1862 | EOL" vec4 aColorR = occTexture2D (uRightSampler, TexCoord);" |
1863 | EOL" aColorL.b = 0.0;" |
1864 | EOL" aColorL.g = 0.0;" |
1865 | EOL" aColorR.r = 0.0;" |
1866 | EOL" occFragColor = aColorL + aColorR;" |
1867 | EOL"}"; |
1868 | break; |
1869 | } |
1870 | } |
38a0206f |
1871 | |
1872 | #if !defined(GL_ES_VERSION_2_0) |
1873 | if (myContext->core32 != NULL) |
1874 | { |
1875 | aProgramSrc->SetHeader ("#version 150"); |
1876 | } |
1877 | #endif |
1878 | |
1879 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_VERTEX, aSrcVert)); |
1880 | aProgramSrc->AttachShader (Graphic3d_ShaderObject::CreateFromSource (Graphic3d_TOS_FRAGMENT, aSrcFrag)); |
1881 | TCollection_AsciiString aKey; |
f978241f |
1882 | if (!Create (aProgramSrc, aKey, theProgram)) |
38a0206f |
1883 | { |
f978241f |
1884 | theProgram = new OpenGl_ShaderProgram(); // just mark as invalid |
38a0206f |
1885 | return Standard_False; |
1886 | } |
1887 | |
f978241f |
1888 | myContext->BindProgram (theProgram); |
1889 | theProgram->SetSampler (myContext, "uLeftSampler", 0); |
1890 | theProgram->SetSampler (myContext, "uRightSampler", 1); |
38a0206f |
1891 | myContext->BindProgram (NULL); |
1892 | return Standard_True; |
1893 | } |
1894 | |
8625ef7e |
1895 | // ======================================================================= |
1896 | // function : bindProgramWithState |
1897 | // purpose : |
1898 | // ======================================================================= |
1899 | Standard_Boolean OpenGl_ShaderManager::bindProgramWithState (const Handle(OpenGl_ShaderProgram)& theProgram, |
1900 | const OpenGl_Element* theAspect) |
1901 | { |
1902 | if (!myContext->BindProgram (theProgram)) |
1903 | { |
1904 | return Standard_False; |
1905 | } |
1906 | theProgram->ApplyVariables (myContext); |
1907 | |
1908 | const OpenGl_MaterialState* aMaterialState = MaterialState (theProgram); |
1909 | if (aMaterialState == NULL || aMaterialState->Aspect() != theAspect) |
1910 | { |
1911 | UpdateMaterialStateTo (theProgram, theAspect); |
1912 | } |
1913 | |
1914 | PushState (theProgram); |
1915 | return Standard_True; |
1916 | } |