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b311480e | 1 | // Created on: 2011-09-20 |
2 | // Created by: Sergey ZERCHANINOV | |
973c2be1 | 3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
d5f74e42 | 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 | |
973c2be1 | 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. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
b311480e | 15 | |
2166f0fa SK |
16 | #include <stdio.h> |
17 | #include <stdlib.h> | |
18 | ||
5f8b738e | 19 | #include <OpenGl_GlCore11.hxx> |
2166f0fa | 20 | #include <OpenGl_tgl_funcs.hxx> |
2166f0fa | 21 | |
3c3131a0 | 22 | #include <Image_AlienPixMap.hxx> |
2166f0fa SK |
23 | #include <Visual3d_Layer.hxx> |
24 | ||
30f0ad28 | 25 | #include <NCollection_Mat4.hxx> |
26 | ||
2166f0fa | 27 | #include <OpenGl_AspectLine.hxx> |
30f0ad28 | 28 | #include <OpenGl_Context.hxx> |
2166f0fa | 29 | #include <OpenGl_Display.hxx> |
30f0ad28 | 30 | #include <OpenGl_Matrix.hxx> |
2166f0fa SK |
31 | #include <OpenGl_Workspace.hxx> |
32 | #include <OpenGl_View.hxx> | |
33 | #include <OpenGl_Trihedron.hxx> | |
34 | #include <OpenGl_GraduatedTrihedron.hxx> | |
35 | #include <OpenGl_PrinterContext.hxx> | |
30f0ad28 | 36 | #include <OpenGl_ShaderManager.hxx> |
37 | #include <OpenGl_ShaderProgram.hxx> | |
59f45b7c | 38 | #include <OpenGl_Structure.hxx> |
2166f0fa | 39 | |
2166f0fa SK |
40 | #define EPSI 0.0001 |
41 | ||
12381341 | 42 | namespace |
43 | { | |
44 | ||
45 | static const GLfloat THE_DEFAULT_AMBIENT[4] = { 0.0f, 0.0f, 0.0f, 1.0f }; | |
46 | static const GLfloat THE_DEFAULT_SPOT_DIR[3] = { 0.0f, 0.0f, -1.0f }; | |
47 | static const GLfloat THE_DEFAULT_SPOT_EXPONENT = 0.0f; | |
48 | static const GLfloat THE_DEFAULT_SPOT_CUTOFF = 180.0f; | |
49 | ||
50 | }; | |
2166f0fa | 51 | |
30f0ad28 | 52 | extern void InitLayerProp (const int theListId); //szvgl: defined in OpenGl_GraphicDriver_Layer.cxx |
2166f0fa SK |
53 | |
54 | /*----------------------------------------------------------------------*/ | |
55 | ||
56 | struct OPENGL_CLIP_PLANE | |
57 | { | |
58 | GLboolean isEnabled; | |
59 | GLdouble Equation[4]; | |
1c35b92f | 60 | DEFINE_STANDARD_ALLOC |
2166f0fa SK |
61 | }; |
62 | ||
63 | /*----------------------------------------------------------------------*/ | |
64 | /* | |
65 | * Fonctions privees | |
66 | */ | |
67 | ||
68 | /*-----------------------------------------------------------------*/ | |
69 | /* | |
70 | * Set des lumieres | |
71 | */ | |
12381341 | 72 | static void bind_light (const OpenGl_Light& theLight, |
4fe9ad57 | 73 | GLenum& theLightGlId, |
74 | Graphic3d_Vec4& theAmbientColor) | |
2166f0fa SK |
75 | { |
76 | // Only 8 lights in OpenGL... | |
12381341 | 77 | if (theLightGlId > GL_LIGHT7) |
2166f0fa | 78 | { |
12381341 | 79 | return; |
2166f0fa SK |
80 | } |
81 | ||
12381341 | 82 | if (theLight.Type == Visual3d_TOLS_AMBIENT) |
2166f0fa | 83 | { |
4fe9ad57 | 84 | // add RGBA intensity of the ambient light |
85 | theAmbientColor += theLight.Color; | |
12381341 | 86 | return; |
87 | } | |
2166f0fa | 88 | |
12381341 | 89 | // the light is a headlight? |
90 | GLint aMatrixModeOld = 0; | |
91 | if (theLight.IsHeadlight) | |
92 | { | |
93 | glGetIntegerv (GL_MATRIX_MODE, &aMatrixModeOld); | |
94 | glMatrixMode (GL_MODELVIEW); | |
95 | glPushMatrix(); | |
96 | glLoadIdentity(); | |
2166f0fa SK |
97 | } |
98 | ||
12381341 | 99 | // setup light type |
100 | switch (theLight.Type) | |
3c3131a0 | 101 | { |
12381341 | 102 | case Visual3d_TOLS_DIRECTIONAL: |
103 | { | |
104 | // if the last parameter of GL_POSITION, is zero, the corresponding light source is a Directional one | |
105 | const OpenGl_Vec4 anInfDir = -theLight.Direction; | |
106 | ||
107 | // to create a realistic effect, set the GL_SPECULAR parameter to the same value as the GL_DIFFUSE. | |
108 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
109 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
110 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
111 | glLightfv (theLightGlId, GL_POSITION, anInfDir.GetData()); | |
112 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, THE_DEFAULT_SPOT_DIR); | |
113 | glLightf (theLightGlId, GL_SPOT_EXPONENT, THE_DEFAULT_SPOT_EXPONENT); | |
114 | glLightf (theLightGlId, GL_SPOT_CUTOFF, THE_DEFAULT_SPOT_CUTOFF); | |
115 | break; | |
116 | } | |
117 | case Visual3d_TOLS_POSITIONAL: | |
118 | { | |
119 | // to create a realistic effect, set the GL_SPECULAR parameter to the same value as the GL_DIFFUSE | |
120 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
121 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
122 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
123 | glLightfv (theLightGlId, GL_POSITION, theLight.Position.GetData()); | |
124 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, THE_DEFAULT_SPOT_DIR); | |
125 | glLightf (theLightGlId, GL_SPOT_EXPONENT, THE_DEFAULT_SPOT_EXPONENT); | |
126 | glLightf (theLightGlId, GL_SPOT_CUTOFF, THE_DEFAULT_SPOT_CUTOFF); | |
127 | glLightf (theLightGlId, GL_CONSTANT_ATTENUATION, theLight.ConstAttenuation()); | |
128 | glLightf (theLightGlId, GL_LINEAR_ATTENUATION, theLight.LinearAttenuation()); | |
129 | glLightf (theLightGlId, GL_QUADRATIC_ATTENUATION, 0.0); | |
130 | break; | |
131 | } | |
132 | case Visual3d_TOLS_SPOT: | |
133 | { | |
134 | glLightfv (theLightGlId, GL_AMBIENT, THE_DEFAULT_AMBIENT); | |
135 | glLightfv (theLightGlId, GL_DIFFUSE, theLight.Color.GetData()); | |
136 | glLightfv (theLightGlId, GL_SPECULAR, theLight.Color.GetData()); | |
137 | glLightfv (theLightGlId, GL_POSITION, theLight.Position.GetData()); | |
138 | glLightfv (theLightGlId, GL_SPOT_DIRECTION, theLight.Direction.GetData()); | |
139 | glLightf (theLightGlId, GL_SPOT_EXPONENT, theLight.Concentration() * 128.0f); | |
140 | glLightf (theLightGlId, GL_SPOT_CUTOFF, (theLight.Angle() * 180.0f) / GLfloat(M_PI)); | |
141 | glLightf (theLightGlId, GL_CONSTANT_ATTENUATION, theLight.ConstAttenuation()); | |
142 | glLightf (theLightGlId, GL_LINEAR_ATTENUATION, theLight.LinearAttenuation()); | |
143 | glLightf (theLightGlId, GL_QUADRATIC_ATTENUATION, 0.0f); | |
144 | break; | |
145 | } | |
2166f0fa SK |
146 | } |
147 | ||
12381341 | 148 | // restore matrix in case of headlight |
149 | if (theLight.IsHeadlight) | |
2166f0fa SK |
150 | { |
151 | glPopMatrix(); | |
12381341 | 152 | glMatrixMode (aMatrixModeOld); |
2166f0fa | 153 | } |
12381341 | 154 | |
155 | glEnable (theLightGlId++); | |
2166f0fa SK |
156 | } |
157 | ||
2166f0fa SK |
158 | /*----------------------------------------------------------------------*/ |
159 | ||
b5ac8292 | 160 | void OpenGl_View::DrawBackground (const Handle(OpenGl_Workspace)& theWorkspace) |
2166f0fa | 161 | { |
b5ac8292 | 162 | if ( (theWorkspace->NamedStatus & OPENGL_NS_WHITEBACK) == 0 && |
163 | ( myBgTexture.TexId != 0 || myBgGradient.type != Aspect_GFM_NONE ) ) | |
2166f0fa | 164 | { |
b5ac8292 | 165 | const Standard_Integer aViewWidth = theWorkspace->Width(); |
166 | const Standard_Integer aViewHeight = theWorkspace->Height(); | |
2166f0fa SK |
167 | |
168 | glPushAttrib( GL_ENABLE_BIT | GL_TEXTURE_BIT ); | |
169 | ||
170 | glMatrixMode( GL_PROJECTION ); | |
171 | glPushMatrix(); | |
172 | glLoadIdentity(); | |
173 | glMatrixMode( GL_MODELVIEW ); | |
174 | glPushMatrix(); | |
175 | glLoadIdentity(); | |
176 | ||
177 | if ( glIsEnabled( GL_DEPTH_TEST ) ) | |
178 | glDisable( GL_DEPTH_TEST ); //push GL_ENABLE_BIT | |
179 | ||
f8b2ed36 | 180 | // drawing bg gradient if: |
181 | // - gradient fill type is not Aspect_GFM_NONE and | |
182 | // - either background texture is no specified or it is drawn in Aspect_FM_CENTERED mode | |
183 | if ( ( myBgGradient.type != Aspect_GFM_NONE ) && | |
e276548b | 184 | ( myBgTexture.TexId == 0 || myBgTexture.Style == Aspect_FM_CENTERED || |
185 | myBgTexture.Style == Aspect_FM_NONE ) ) | |
2166f0fa SK |
186 | { |
187 | Tfloat* corner1 = 0;/* -1,-1*/ | |
188 | Tfloat* corner2 = 0;/* 1,-1*/ | |
189 | Tfloat* corner3 = 0;/* 1, 1*/ | |
190 | Tfloat* corner4 = 0;/* -1, 1*/ | |
191 | Tfloat dcorner1[3]; | |
192 | Tfloat dcorner2[3]; | |
193 | ||
194 | switch( myBgGradient.type ) | |
195 | { | |
e276548b | 196 | case Aspect_GFM_HOR: |
197 | corner1 = myBgGradient.color1.rgb; | |
198 | corner2 = myBgGradient.color2.rgb; | |
199 | corner3 = myBgGradient.color2.rgb; | |
200 | corner4 = myBgGradient.color1.rgb; | |
201 | break; | |
202 | case Aspect_GFM_VER: | |
203 | corner1 = myBgGradient.color2.rgb; | |
204 | corner2 = myBgGradient.color2.rgb; | |
205 | corner3 = myBgGradient.color1.rgb; | |
206 | corner4 = myBgGradient.color1.rgb; | |
207 | break; | |
208 | case Aspect_GFM_DIAG1: | |
209 | corner2 = myBgGradient.color2.rgb; | |
210 | corner4 = myBgGradient.color1.rgb; | |
211 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner2[0] + corner4[0]); | |
212 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner2[1] + corner4[1]); | |
213 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner2[2] + corner4[2]); | |
214 | corner1 = dcorner1; | |
215 | corner3 = dcorner2; | |
216 | break; | |
217 | case Aspect_GFM_DIAG2: | |
218 | corner1 = myBgGradient.color2.rgb; | |
219 | corner3 = myBgGradient.color1.rgb; | |
220 | dcorner1 [0] = dcorner2[0] = 0.5F * (corner1[0] + corner3[0]); | |
221 | dcorner1 [1] = dcorner2[1] = 0.5F * (corner1[1] + corner3[1]); | |
222 | dcorner1 [2] = dcorner2[2] = 0.5F * (corner1[2] + corner3[2]); | |
223 | corner2 = dcorner1; | |
224 | corner4 = dcorner2; | |
225 | break; | |
226 | case Aspect_GFM_CORNER1: | |
227 | corner1 = myBgGradient.color2.rgb; | |
228 | corner2 = myBgGradient.color2.rgb; | |
229 | corner3 = myBgGradient.color2.rgb; | |
230 | corner4 = myBgGradient.color1.rgb; | |
231 | break; | |
232 | case Aspect_GFM_CORNER2: | |
233 | corner1 = myBgGradient.color2.rgb; | |
234 | corner2 = myBgGradient.color2.rgb; | |
235 | corner3 = myBgGradient.color1.rgb; | |
236 | corner4 = myBgGradient.color2.rgb; | |
237 | break; | |
238 | case Aspect_GFM_CORNER3: | |
239 | corner1 = myBgGradient.color2.rgb; | |
240 | corner2 = myBgGradient.color1.rgb; | |
241 | corner3 = myBgGradient.color2.rgb; | |
242 | corner4 = myBgGradient.color2.rgb; | |
243 | break; | |
244 | case Aspect_GFM_CORNER4: | |
245 | corner1 = myBgGradient.color1.rgb; | |
246 | corner2 = myBgGradient.color2.rgb; | |
247 | corner3 = myBgGradient.color2.rgb; | |
248 | corner4 = myBgGradient.color2.rgb; | |
249 | break; | |
250 | default: | |
251 | //printf("gradient background type not right\n"); | |
252 | break; | |
2166f0fa SK |
253 | } |
254 | ||
255 | // Save GL parameters | |
256 | glDisable( GL_LIGHTING ); //push GL_ENABLE_BIT | |
257 | ||
258 | GLint curSM; | |
259 | glGetIntegerv( GL_SHADE_MODEL, &curSM ); | |
260 | if ( curSM != GL_SMOOTH ) | |
261 | glShadeModel( GL_SMOOTH ); //push GL_LIGHTING_BIT | |
262 | ||
263 | glBegin(GL_TRIANGLE_FAN); | |
f8b2ed36 | 264 | if( myBgGradient.type != Aspect_GFM_CORNER1 && myBgGradient.type != Aspect_GFM_CORNER3 ) |
2166f0fa SK |
265 | { |
266 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
267 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
268 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
269 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
3c3131a0 | 270 | } |
f8b2ed36 | 271 | else //if ( myBgGradient.type == Aspect_GFM_CORNER1 || myBgGradient.type == Aspect_GFM_CORNER3 ) |
2166f0fa SK |
272 | { |
273 | glColor3f(corner2[0],corner2[1],corner2[2]); glVertex2f( 1.,-1.); | |
274 | glColor3f(corner3[0],corner3[1],corner3[2]); glVertex2f( 1., 1.); | |
275 | glColor3f(corner4[0],corner4[1],corner4[2]); glVertex2f(-1., 1.); | |
276 | glColor3f(corner1[0],corner1[1],corner1[2]); glVertex2f(-1.,-1.); | |
277 | } | |
278 | glEnd(); | |
279 | ||
280 | // Restore GL parameters | |
281 | if ( curSM != GL_SMOOTH ) | |
282 | glShadeModel( curSM ); | |
283 | } | |
f8b2ed36 | 284 | // drawing bg image if: |
285 | // - it is defined and | |
286 | // - fill type is not Aspect_FM_NONE | |
287 | if ( myBgTexture.TexId != 0 && myBgTexture.Style != Aspect_FM_NONE ) | |
288 | { | |
289 | GLfloat texX_range = 1.F; // texture <s> coordinate | |
290 | GLfloat texY_range = 1.F; // texture <t> coordinate | |
291 | ||
e276548b | 292 | // Set up for stretching or tiling |
f8b2ed36 | 293 | GLfloat x_offset, y_offset; |
294 | if ( myBgTexture.Style == Aspect_FM_CENTERED ) | |
295 | { | |
296 | x_offset = (GLfloat)myBgTexture.Width / (GLfloat)aViewWidth; | |
297 | y_offset = (GLfloat)myBgTexture.Height / (GLfloat)aViewHeight; | |
298 | } | |
299 | else | |
300 | { | |
301 | x_offset = 1.F; | |
302 | y_offset = 1.F; | |
303 | if ( myBgTexture.Style == Aspect_FM_TILED ) | |
304 | { | |
305 | texX_range = (GLfloat)aViewWidth / (GLfloat)myBgTexture.Width; | |
306 | texY_range = (GLfloat)aViewHeight / (GLfloat)myBgTexture.Height; | |
307 | } | |
308 | } | |
309 | ||
1e743e91 | 310 | // OCCT issue 0023000: Improve the way the gradient and textured |
311 | // background is managed in 3d viewer (note 0020339) | |
312 | // Setting this coefficient to -1.F allows to tile textures relatively | |
313 | // to the top-left corner of the view (value 1.F corresponds to the | |
314 | // initial behaviour - tiling from the bottom-left corner) | |
315 | GLfloat aCoef = -1.F; | |
316 | ||
f8b2ed36 | 317 | glEnable( GL_TEXTURE_2D ); //push GL_ENABLE_BIT |
318 | glBindTexture( GL_TEXTURE_2D, myBgTexture.TexId ); //push GL_TEXTURE_BIT | |
319 | ||
320 | glDisable( GL_BLEND ); //push GL_ENABLE_BIT | |
321 | ||
b5ac8292 | 322 | glColor3fv (theWorkspace->BackgroundColor().rgb); |
323 | glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); //push GL_TEXTURE_BIT | |
f8b2ed36 | 324 | |
1e743e91 | 325 | // Note that texture is mapped using GL_REPEAT wrapping mode so integer part |
326 | // is simply ignored, and negative multiplier is here for convenience only | |
327 | // and does not result e.g. in texture mirroring | |
f8b2ed36 | 328 | glBegin( GL_QUADS ); |
1e743e91 | 329 | glTexCoord2f(0.F, 0.F); glVertex2f( -x_offset, -aCoef * y_offset ); |
330 | glTexCoord2f(texX_range, 0.F); glVertex2f( x_offset, -aCoef * y_offset ); | |
331 | glTexCoord2f(texX_range, aCoef * texY_range); glVertex2f( x_offset, aCoef * y_offset ); | |
332 | glTexCoord2f(0.F, aCoef * texY_range); glVertex2f( -x_offset, aCoef * y_offset ); | |
f8b2ed36 | 333 | glEnd(); |
334 | } | |
2166f0fa SK |
335 | |
336 | glPopMatrix(); | |
337 | glMatrixMode( GL_PROJECTION ); | |
338 | glPopMatrix(); | |
339 | glMatrixMode( GL_MODELVIEW ); | |
340 | ||
341 | glPopAttrib(); //GL_ENABLE_BIT | GL_TEXTURE_BIT | |
342 | ||
b5ac8292 | 343 | if (theWorkspace->UseZBuffer()) |
344 | glEnable (GL_DEPTH_TEST); | |
2166f0fa SK |
345 | |
346 | /* GL_DITHER on/off pour le trace */ | |
b5ac8292 | 347 | if (theWorkspace->Dither()) |
2166f0fa SK |
348 | glEnable (GL_DITHER); |
349 | else | |
350 | glDisable (GL_DITHER); | |
351 | } | |
e276548b | 352 | } |
353 | ||
354 | /*----------------------------------------------------------------------*/ | |
355 | ||
356 | //call_func_redraw_all_structs_proc | |
357 | void OpenGl_View::Render (const Handle(OpenGl_PrinterContext)& thePrintContext, | |
b5ac8292 | 358 | const Handle(OpenGl_Workspace) &theWorkspace, |
359 | const Graphic3d_CView& theCView, | |
360 | const Aspect_CLayer2d& theCUnderLayer, | |
361 | const Aspect_CLayer2d& theCOverLayer) | |
e276548b | 362 | { |
b5ac8292 | 363 | // ================================== |
364 | // Step 1: Prepare for redraw | |
365 | // ================================== | |
366 | ||
367 | const Handle(OpenGl_Context)& aContext = theWorkspace->GetGlContext(); | |
368 | ||
e276548b | 369 | // Store and disable current clipping planes |
b5ac8292 | 370 | Standard_Integer aMaxPlanes = aContext->MaxClipPlanes(); |
371 | ||
372 | OPENGL_CLIP_PLANE *aOldPlanes = new OPENGL_CLIP_PLANE[aMaxPlanes]; | |
373 | OPENGL_CLIP_PLANE *aPtrPlane = aOldPlanes; | |
374 | ||
375 | GLenum aClipPlaneId = GL_CLIP_PLANE0; | |
376 | const GLenum aClipLastId = GL_CLIP_PLANE0 + aMaxPlanes; | |
377 | for (; aClipPlaneId < aClipLastId; aClipPlaneId++, aPtrPlane++) | |
e276548b | 378 | { |
b5ac8292 | 379 | glGetClipPlane (aClipPlaneId, aPtrPlane->Equation); |
380 | if (aPtrPlane->isEnabled) | |
e276548b | 381 | { |
b5ac8292 | 382 | glDisable (aClipPlaneId); |
383 | aPtrPlane->isEnabled = GL_TRUE; | |
e276548b | 384 | } |
385 | else | |
386 | { | |
b5ac8292 | 387 | aPtrPlane->isEnabled = GL_FALSE; |
e276548b | 388 | } |
389 | } | |
390 | ||
391 | // Set OCCT state uniform variables | |
392ac980 | 392 | const Handle(OpenGl_ShaderManager) aManager = aContext->ShaderManager(); |
b5ac8292 | 393 | if (!aManager->IsEmpty()) |
392ac980 | 394 | { |
b5ac8292 | 395 | if (StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()) != myLastLightSourceState) |
396 | { | |
397 | aManager->UpdateLightSourceStateTo (&myLights); | |
398 | myLastLightSourceState = StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()); | |
399 | } | |
400 | ||
401 | if (myProjectionState != myCamera->ProjectionState()) | |
402 | { | |
403 | myProjectionState = myCamera->ProjectionState(); | |
197ac94e | 404 | aManager->UpdateProjectionStateTo ((const Tmatrix3*)myCamera->ProjectionMatrixF().GetData()); |
b5ac8292 | 405 | } |
406 | ||
407 | if (myModelViewState != myCamera->ModelViewState()) | |
408 | { | |
409 | myModelViewState = myCamera->ModelViewState(); | |
197ac94e | 410 | aManager->UpdateWorldViewStateTo ((const Tmatrix3*)myCamera->OrientationMatrixF().GetData()); |
b5ac8292 | 411 | } |
412 | ||
413 | if (aManager->ModelWorldState().Index() == 0) | |
414 | { | |
415 | Tmatrix3 aModelWorldState = { { 1.f, 0.f, 0.f, 0.f }, | |
416 | { 0.f, 1.f, 0.f, 0.f }, | |
417 | { 0.f, 0.f, 1.f, 0.f }, | |
418 | { 0.f, 0.f, 0.f, 1.f } }; | |
419 | ||
420 | aContext->ShaderManager()->UpdateModelWorldStateTo (&aModelWorldState); | |
421 | } | |
e276548b | 422 | } |
423 | ||
b5ac8292 | 424 | // ==================================== |
425 | // Step 2: Redraw background | |
426 | // ==================================== | |
e276548b | 427 | |
428 | // Render background | |
b5ac8292 | 429 | DrawBackground (theWorkspace); |
2166f0fa SK |
430 | |
431 | // Switch off lighting by default | |
432 | glDisable(GL_LIGHTING); | |
433 | ||
b5ac8292 | 434 | // ================================= |
435 | // Step 3: Draw underlayer | |
436 | // ================================= | |
437 | ||
438 | RedrawLayer2d (thePrintContext, theCView, theCUnderLayer); | |
2166f0fa | 439 | |
b5ac8292 | 440 | // ================================= |
441 | // Step 4: Redraw main plane | |
442 | // ================================= | |
2166f0fa SK |
443 | |
444 | // Setup face culling | |
445 | GLboolean isCullFace = GL_FALSE; | |
446 | if ( myBackfacing ) | |
447 | { | |
448 | isCullFace = glIsEnabled( GL_CULL_FACE ); | |
449 | if ( myBackfacing < 0 ) | |
450 | { | |
451 | glEnable( GL_CULL_FACE ); | |
452 | glCullFace( GL_BACK ); | |
453 | } | |
b5ac8292 | 454 | else |
2166f0fa SK |
455 | glDisable( GL_CULL_FACE ); |
456 | } | |
457 | ||
b5ac8292 | 458 | // if the view is scaled normal vectors are scaled to unit |
459 | // length for correct displaying of shaded objects | |
460 | const gp_Pnt anAxialScale = myCamera->AxialScale(); | |
461 | if(anAxialScale.X() != 1.F || | |
462 | anAxialScale.Y() != 1.F || | |
463 | anAxialScale.Z() != 1.F) | |
2166f0fa | 464 | glEnable(GL_NORMALIZE); |
3c3131a0 | 465 | else if(glIsEnabled(GL_NORMALIZE)) |
2166f0fa SK |
466 | glDisable(GL_NORMALIZE); |
467 | ||
2166f0fa SK |
468 | // Apply Fog |
469 | if ( myFog.IsOn ) | |
470 | { | |
b5ac8292 | 471 | Standard_Real aFogFrontConverted = (Standard_Real )myFog.Front + myCamera->Distance(); |
472 | if (myCamera->ZFar() < aFogFrontConverted) | |
2166f0fa | 473 | { |
b5ac8292 | 474 | aFogFrontConverted = myCamera->ZFar(); |
475 | myFog.Front = (Standard_ShortReal )(aFogFrontConverted - myCamera->Distance()); | |
12381341 | 476 | } |
4fe9ad57 | 477 | |
b5ac8292 | 478 | Standard_Real aFogBackConverted = (Standard_Real )myFog.Back + myCamera->Distance(); |
479 | if (myCamera->ZFar() < aFogFrontConverted) | |
12381341 | 480 | { |
b5ac8292 | 481 | aFogBackConverted = myCamera->ZFar(); |
482 | myFog.Back = (Standard_ShortReal )(aFogBackConverted - myCamera->Distance()); | |
12381341 | 483 | } |
b5ac8292 | 484 | |
485 | if (aFogFrontConverted > aFogBackConverted) | |
12381341 | 486 | { |
b5ac8292 | 487 | myFog.Front = (Standard_ShortReal )(aFogFrontConverted - myCamera->Distance()); |
488 | myFog.Back = (Standard_ShortReal )(aFogBackConverted - myCamera->Distance()); | |
489 | } | |
490 | ||
491 | glFogi(GL_FOG_MODE, GL_LINEAR); | |
492 | glFogf(GL_FOG_START, (Standard_ShortReal )aFogFrontConverted); | |
493 | glFogf(GL_FOG_END, (Standard_ShortReal )aFogBackConverted); | |
494 | glFogfv(GL_FOG_COLOR, myFog.Color.rgb); | |
495 | glEnable(GL_FOG); | |
2166f0fa | 496 | } |
b5ac8292 | 497 | else |
498 | glDisable(GL_FOG); | |
2166f0fa SK |
499 | |
500 | // Apply InteriorShadingMethod | |
501 | glShadeModel( myIntShadingMethod == TEL_SM_FLAT ? GL_FLAT : GL_SMOOTH ); | |
502 | ||
b5ac8292 | 503 | // Apply AntiAliasing |
504 | if (myAntiAliasing) | |
505 | theWorkspace->NamedStatus |= OPENGL_NS_ANTIALIASING; | |
506 | else | |
507 | theWorkspace->NamedStatus &= ~OPENGL_NS_ANTIALIASING; | |
508 | ||
509 | if (!aManager->IsEmpty()) | |
2166f0fa | 510 | { |
b5ac8292 | 511 | aManager->UpdateClippingState(); |
512 | } | |
2166f0fa | 513 | |
b5ac8292 | 514 | // Redraw 3d scene |
515 | if (!myCamera->IsStereo() || !aContext->HasStereoBuffers()) | |
516 | { | |
517 | // single-pass monographic rendering | |
197ac94e | 518 | const OpenGl_Matrix* aProj = (const OpenGl_Matrix*) &myCamera->ProjectionMatrixF(); |
b859a34d | 519 | |
197ac94e | 520 | const OpenGl_Matrix* aOrient = (const OpenGl_Matrix*) &myCamera->OrientationMatrixF(); |
2166f0fa | 521 | |
b5ac8292 | 522 | // redraw scene with normal orientation and projection |
523 | RedrawScene (thePrintContext, theWorkspace, aProj, aOrient); | |
524 | } | |
525 | else | |
526 | { | |
527 | // two stereographic passes | |
197ac94e | 528 | const OpenGl_Matrix* aLProj = (const OpenGl_Matrix*) &myCamera->ProjectionStereoLeftF(); |
529 | const OpenGl_Matrix* aRProj = (const OpenGl_Matrix*) &myCamera->ProjectionStereoRightF(); | |
530 | const OpenGl_Matrix* aOrient = (const OpenGl_Matrix*) &myCamera->OrientationMatrixF(); | |
2166f0fa | 531 | |
b5ac8292 | 532 | // safely switch to left Eye buffer |
533 | aContext->SetDrawBufferLeft(); | |
b859a34d | 534 | |
b5ac8292 | 535 | // redraw left Eye |
536 | RedrawScene (thePrintContext, theWorkspace, aLProj, aOrient); | |
b859a34d | 537 | |
b5ac8292 | 538 | // reset depth buffer of first rendering pass |
539 | if (theWorkspace->UseDepthTest()) | |
4269bd1b | 540 | { |
b5ac8292 | 541 | glClear (GL_DEPTH_BUFFER_BIT); |
2166f0fa | 542 | } |
b5ac8292 | 543 | // safely switch to right Eye buffer |
544 | aContext->SetDrawBufferRight(); | |
30f0ad28 | 545 | |
b5ac8292 | 546 | // redraw right Eye |
547 | RedrawScene (thePrintContext, theWorkspace, aRProj, aOrient); | |
2166f0fa | 548 | |
b5ac8292 | 549 | // switch back to monographic rendering |
550 | aContext->SetDrawBufferMono(); | |
2166f0fa SK |
551 | } |
552 | ||
b5ac8292 | 553 | // =============================== |
554 | // Step 5: Trihedron | |
555 | // =============================== | |
2166f0fa | 556 | |
26395493 | 557 | // Resetting GL parameters according to the default aspects |
558 | // in order to synchronize GL state with the graphic driver state | |
559 | // before drawing auxiliary stuff (trihedrons, overlayer) | |
560 | // and invoking optional callbacks | |
b5ac8292 | 561 | theWorkspace->ResetAppliedAspect(); |
2166f0fa | 562 | |
b859a34d | 563 | aContext->ChangeClipping().RemoveAll(); |
2166f0fa | 564 | |
392ac980 | 565 | if (!aManager->IsEmpty()) |
30f0ad28 | 566 | { |
392ac980 | 567 | aManager->ResetMaterialStates(); |
568 | aManager->RevertClippingState(); | |
569 | ||
570 | // We need to disable (unbind) all shaders programs to ensure | |
571 | // that all objects without specified aspect will be drawn | |
572 | // correctly (such as background) | |
573 | OpenGl_ShaderProgram::Unbind (aContext); | |
30f0ad28 | 574 | } |
575 | ||
a174a3c5 | 576 | // display global trihedron |
577 | if (myTrihedron != NULL) | |
578 | { | |
b5ac8292 | 579 | myTrihedron->Render (theWorkspace); |
a174a3c5 | 580 | } |
581 | if (myGraduatedTrihedron != NULL) | |
582 | { | |
b5ac8292 | 583 | myGraduatedTrihedron->Render (theWorkspace); |
a174a3c5 | 584 | } |
2166f0fa | 585 | |
2166f0fa SK |
586 | // Restore face culling |
587 | if ( myBackfacing ) | |
588 | { | |
589 | if ( isCullFace ) | |
590 | { | |
591 | glEnable ( GL_CULL_FACE ); | |
592 | glCullFace ( GL_BACK ); | |
593 | } | |
529afc1a | 594 | else |
2166f0fa SK |
595 | glDisable ( GL_CULL_FACE ); |
596 | } | |
597 | ||
b5ac8292 | 598 | // =============================== |
599 | // Step 6: Redraw overlay | |
600 | // =============================== | |
601 | ||
529afc1a | 602 | const int aMode = 0; |
b5ac8292 | 603 | theWorkspace->DisplayCallback (theCView, (aMode | OCC_PRE_OVERLAY)); |
2166f0fa | 604 | |
b5ac8292 | 605 | RedrawLayer2d (thePrintContext, theCView, theCOverLayer); |
2166f0fa | 606 | |
b5ac8292 | 607 | theWorkspace->DisplayCallback (theCView, aMode); |
608 | ||
609 | // =============================== | |
610 | // Step 7: Finalize | |
611 | // =============================== | |
2166f0fa SK |
612 | |
613 | // Restore clipping planes | |
b5ac8292 | 614 | aClipPlaneId = GL_CLIP_PLANE0; |
615 | aPtrPlane = aOldPlanes; | |
616 | ||
617 | for (; aClipPlaneId < aClipLastId; aClipPlaneId++, aPtrPlane++) | |
2166f0fa | 618 | { |
b5ac8292 | 619 | glClipPlane (aClipPlaneId, aPtrPlane->Equation); |
620 | if (aPtrPlane->isEnabled) | |
621 | glEnable (aClipPlaneId); | |
529afc1a | 622 | else |
b5ac8292 | 623 | glDisable (aClipPlaneId); |
2166f0fa | 624 | } |
b5ac8292 | 625 | |
626 | delete[] aOldPlanes; | |
2166f0fa SK |
627 | } |
628 | ||
629 | /*----------------------------------------------------------------------*/ | |
630 | ||
631 | //ExecuteViewDisplay | |
632 | void OpenGl_View::RenderStructs (const Handle(OpenGl_Workspace) &AWorkspace) | |
633 | { | |
59f45b7c | 634 | if ( myZLayers.NbStructures() <= 0 ) |
635 | return; | |
2166f0fa SK |
636 | |
637 | glPushAttrib ( GL_DEPTH_BUFFER_BIT ); | |
638 | ||
2166f0fa SK |
639 | //TsmPushAttri(); /* save previous graphics context */ |
640 | ||
641 | if ( (AWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) == 0 ) | |
642 | { | |
643 | const int antiAliasingMode = AWorkspace->GetDisplay()->AntiAliasingMode(); | |
644 | ||
645 | if ( !myAntiAliasing ) | |
646 | { | |
647 | glDisable(GL_POINT_SMOOTH); | |
648 | glDisable(GL_LINE_SMOOTH); | |
649 | if( antiAliasingMode & 2 ) glDisable(GL_POLYGON_SMOOTH); | |
650 | glBlendFunc (GL_ONE, GL_ZERO); | |
651 | glDisable (GL_BLEND); | |
652 | } | |
653 | else | |
654 | { | |
655 | glEnable(GL_POINT_SMOOTH); | |
656 | glEnable(GL_LINE_SMOOTH); | |
657 | if( antiAliasingMode & 2 ) glEnable(GL_POLYGON_SMOOTH); | |
3c3131a0 | 658 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
2166f0fa SK |
659 | glEnable (GL_BLEND); |
660 | } | |
661 | } | |
662 | ||
59f45b7c | 663 | myZLayers.Render (AWorkspace); |
2166f0fa SK |
664 | |
665 | //TsmPopAttri(); /* restore previous graphics context; before update lights */ | |
de75ed09 | 666 | glPopAttrib(); |
2166f0fa SK |
667 | } |
668 | ||
669 | /*----------------------------------------------------------------------*/ | |
670 | ||
671 | //call_togl_redraw_layer2d | |
a174a3c5 | 672 | void OpenGl_View::RedrawLayer2d (const Handle(OpenGl_PrinterContext)& thePrintContext, |
a174a3c5 | 673 | const Graphic3d_CView& ACView, |
674 | const Aspect_CLayer2d& ACLayer) | |
2166f0fa SK |
675 | { |
676 | if (&ACLayer == NULL | |
677 | || ACLayer.ptrLayer == NULL | |
678 | || ACLayer.ptrLayer->listIndex == 0) return; | |
679 | ||
529afc1a K |
680 | GLsizei dispWidth = (GLsizei )ACLayer.viewport[0]; |
681 | GLsizei dispHeight = (GLsizei )ACLayer.viewport[1]; | |
2166f0fa | 682 | |
2166f0fa SK |
683 | glMatrixMode( GL_MODELVIEW ); |
684 | glPushMatrix (); | |
685 | glLoadIdentity (); | |
686 | ||
687 | glMatrixMode (GL_PROJECTION); | |
688 | glPushMatrix (); | |
689 | glLoadIdentity (); | |
690 | ||
691 | if (!ACLayer.sizeDependent) | |
692 | glViewport (0, 0, dispWidth, dispHeight); | |
693 | ||
694 | float left = ACLayer.ortho[0]; | |
695 | float right = ACLayer.ortho[1]; | |
696 | float bottom = ACLayer.ortho[2]; | |
697 | float top = ACLayer.ortho[3]; | |
698 | ||
699 | int attach = ACLayer.attach; | |
700 | ||
701 | float ratio; | |
702 | if (!ACLayer.sizeDependent) | |
703 | ratio = (float) dispWidth/dispHeight; | |
704 | else | |
705 | ratio = ACView.DefWindow.dx/ACView.DefWindow.dy; | |
706 | ||
707 | float delta; | |
c9d4eb9d | 708 | if (ratio >= 1.0) { |
2166f0fa SK |
709 | delta = (float )((top - bottom)/2.0); |
710 | switch (attach) { | |
711 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
712 | top = bottom + 2*delta/ratio; | |
713 | break; | |
714 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
715 | top = bottom + 2*delta/ratio; | |
716 | break; | |
717 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
718 | bottom = top - 2*delta/ratio; | |
719 | break; | |
720 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
721 | bottom = top - 2*delta/ratio; | |
722 | break; | |
723 | } | |
724 | } | |
c9d4eb9d | 725 | else { |
2166f0fa SK |
726 | delta = (float )((right - left)/2.0); |
727 | switch (attach) { | |
728 | case 0: /* Aspect_TOC_BOTTOM_LEFT */ | |
729 | right = left + 2*delta*ratio; | |
730 | break; | |
731 | case 1: /* Aspect_TOC_BOTTOM_RIGHT */ | |
732 | left = right - 2*delta*ratio; | |
733 | break; | |
734 | case 2: /* Aspect_TOC_TOP_LEFT */ | |
735 | right = left + 2*delta*ratio; | |
736 | break; | |
737 | case 3: /* Aspect_TOC_TOP_RIGHT */ | |
738 | left = right - 2*delta*ratio; | |
739 | break; | |
740 | } | |
741 | } | |
742 | ||
a174a3c5 | 743 | #ifdef _WIN32 |
2166f0fa | 744 | // Check printer context that exists only for print operation |
a174a3c5 | 745 | if (!thePrintContext.IsNull()) |
2166f0fa SK |
746 | { |
747 | // additional transformation matrix could be applied to | |
748 | // render only those parts of viewport that will be | |
749 | // passed to a printer as a current "frame" to provide | |
750 | // tiling; scaling of graphics by matrix helps render a | |
751 | // part of a view (frame) in same viewport, but with higher | |
752 | // resolution | |
a174a3c5 | 753 | thePrintContext->LoadProjTransformation(); |
2166f0fa SK |
754 | |
755 | // printing operation also assumes other viewport dimension | |
756 | // to comply with transformation matrix or graphics scaling | |
757 | // factors for tiling for layer redraw | |
758 | GLsizei anViewportX = 0; | |
759 | GLsizei anViewportY = 0; | |
a174a3c5 | 760 | thePrintContext->GetLayerViewport (anViewportX, anViewportY); |
2166f0fa SK |
761 | if (anViewportX != 0 && anViewportY != 0) |
762 | glViewport (0, 0, anViewportX, anViewportY); | |
763 | } | |
3c3131a0 | 764 | #endif |
2166f0fa SK |
765 | |
766 | glOrtho (left, right, bottom, top, -1.0, 1.0); | |
767 | ||
2166f0fa SK |
768 | glPushAttrib ( |
769 | GL_LIGHTING_BIT | GL_LINE_BIT | GL_POLYGON_BIT | | |
770 | GL_DEPTH_BUFFER_BIT | GL_CURRENT_BIT | GL_TEXTURE_BIT ); | |
c9d4eb9d | 771 | |
2166f0fa | 772 | glDisable (GL_DEPTH_TEST); |
c9d4eb9d | 773 | glDisable (GL_TEXTURE_1D); |
774 | glDisable (GL_TEXTURE_2D); | |
775 | glDisable (GL_LIGHTING); | |
776 | ||
777 | // TODO: Obsolete code, the display list is always empty now, to be removed | |
2166f0fa SK |
778 | glCallList (ACLayer.ptrLayer->listIndex); |
779 | ||
780 | //calling dynamic render of LayerItems | |
781 | if ( ACLayer.ptrLayer->layerData ) | |
782 | { | |
30f0ad28 | 783 | InitLayerProp (ACLayer.ptrLayer->listIndex); |
2166f0fa | 784 | ((Visual3d_Layer*)ACLayer.ptrLayer->layerData)->RenderLayerItems(); |
30f0ad28 | 785 | InitLayerProp (0); |
2166f0fa SK |
786 | } |
787 | ||
788 | glPopAttrib (); | |
789 | ||
2166f0fa SK |
790 | glMatrixMode (GL_PROJECTION); |
791 | glPopMatrix (); | |
792 | ||
793 | glMatrixMode( GL_MODELVIEW ); | |
794 | glPopMatrix (); | |
795 | ||
2166f0fa SK |
796 | if (!ACLayer.sizeDependent) |
797 | glViewport (0, 0, (GLsizei) ACView.DefWindow.dx, (GLsizei) ACView.DefWindow.dy); | |
798 | ||
799 | glFlush (); | |
2166f0fa SK |
800 | } |
801 | ||
802 | /*----------------------------------------------------------------------*/ | |
803 | ||
804 | //call_togl_create_bg_texture | |
3c3131a0 | 805 | void OpenGl_View::CreateBackgroundTexture (const Standard_CString theFilePath, |
806 | const Aspect_FillMethod theFillStyle) | |
2166f0fa | 807 | { |
3c3131a0 | 808 | if (myBgTexture.TexId != 0) |
2166f0fa | 809 | { |
3c3131a0 | 810 | // delete existing texture |
811 | glDeleteTextures (1, (GLuint* )&(myBgTexture.TexId)); | |
2166f0fa SK |
812 | myBgTexture.TexId = 0; |
813 | } | |
814 | ||
3c3131a0 | 815 | // load image from file |
816 | Image_AlienPixMap anImageLoaded; | |
817 | if (!anImageLoaded.Load (theFilePath)) | |
818 | { | |
819 | return; | |
820 | } | |
821 | ||
822 | Image_PixMap anImage; | |
823 | if (anImageLoaded.RowExtraBytes() == 0 && | |
824 | (anImageLoaded.Format() == Image_PixMap::ImgRGB | |
825 | || anImageLoaded.Format() == Image_PixMap::ImgRGB32 | |
826 | || anImageLoaded.Format() == Image_PixMap::ImgRGBA)) | |
2166f0fa | 827 | { |
3c3131a0 | 828 | anImage.InitWrapper (anImageLoaded.Format(), anImageLoaded.ChangeData(), |
829 | anImageLoaded.SizeX(), anImageLoaded.SizeY(), anImageLoaded.SizeRowBytes()); | |
830 | } | |
831 | else | |
832 | { | |
833 | // convert image to RGB format | |
834 | if (!anImage.InitTrash (Image_PixMap::ImgRGB, anImageLoaded.SizeX(), anImageLoaded.SizeY())) | |
835 | { | |
836 | return; | |
837 | } | |
838 | ||
839 | anImage.SetTopDown (false); | |
840 | Image_PixMapData<Image_ColorRGB>& aDataNew = anImage.EditData<Image_ColorRGB>(); | |
841 | Quantity_Color aSrcColor; | |
842 | for (Standard_Size aRow = 0; aRow < anImage.SizeY(); ++aRow) | |
843 | { | |
844 | for (Standard_Size aCol = 0; aCol < anImage.SizeX(); ++aCol) | |
2166f0fa | 845 | { |
6a7d83c4 | 846 | aSrcColor = anImageLoaded.PixelColor ((Standard_Integer )aCol, (Standard_Integer )aRow); |
3c3131a0 | 847 | Image_ColorRGB& aColor = aDataNew.ChangeValue (aRow, aCol); |
8263fcd3 | 848 | aColor.r() = Standard_Byte(255.0 * aSrcColor.Red()); |
849 | aColor.g() = Standard_Byte(255.0 * aSrcColor.Green()); | |
850 | aColor.b() = Standard_Byte(255.0 * aSrcColor.Blue()); | |
2166f0fa | 851 | } |
3c3131a0 | 852 | } |
853 | anImageLoaded.Clear(); | |
854 | } | |
2166f0fa | 855 | |
3c3131a0 | 856 | // create MipMapped texture |
857 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); | |
2166f0fa | 858 | |
3c3131a0 | 859 | GLuint aTextureId = 0; |
860 | glGenTextures (1, &aTextureId); | |
861 | glBindTexture (GL_TEXTURE_2D, aTextureId); | |
2166f0fa | 862 | |
3c3131a0 | 863 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
864 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); | |
865 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | |
866 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); | |
2166f0fa | 867 | |
3c3131a0 | 868 | const GLenum aDataFormat = (anImage.Format() == Image_PixMap::ImgRGB) ? GL_RGB : GL_RGBA; |
869 | gluBuild2DMipmaps (GL_TEXTURE_2D, 3/*4*/, | |
870 | GLint(anImage.SizeX()), GLint(anImage.SizeY()), | |
871 | aDataFormat, GL_UNSIGNED_BYTE, anImage.Data()); | |
2166f0fa | 872 | |
3c3131a0 | 873 | myBgTexture.TexId = aTextureId; |
874 | myBgTexture.Width = (Standard_Integer )anImage.SizeX(); | |
875 | myBgTexture.Height = (Standard_Integer )anImage.SizeY(); | |
876 | myBgTexture.Style = theFillStyle; | |
2166f0fa SK |
877 | } |
878 | ||
879 | /*----------------------------------------------------------------------*/ | |
880 | ||
881 | //call_togl_set_bg_texture_style | |
882 | void OpenGl_View::SetBackgroundTextureStyle (const Aspect_FillMethod AFillStyle) | |
883 | { | |
f8b2ed36 | 884 | myBgTexture.Style = AFillStyle; |
2166f0fa SK |
885 | } |
886 | ||
887 | /*----------------------------------------------------------------------*/ | |
888 | ||
889 | //call_togl_gradient_background | |
890 | void OpenGl_View::SetBackgroundGradient (const Quantity_Color& AColor1, | |
891 | const Quantity_Color& AColor2, | |
892 | const Aspect_GradientFillMethod AType) | |
893 | { | |
894 | Standard_Real R,G,B; | |
895 | AColor1.Values( R, G, B, Quantity_TOC_RGB ); | |
896 | myBgGradient.color1.rgb[0] = ( Tfloat )R; | |
897 | myBgGradient.color1.rgb[1] = ( Tfloat )G; | |
898 | myBgGradient.color1.rgb[2] = ( Tfloat )B; | |
899 | myBgGradient.color1.rgb[3] = 0.F; | |
900 | ||
901 | AColor2.Values( R, G, B, Quantity_TOC_RGB ); | |
902 | myBgGradient.color2.rgb[0] = ( Tfloat )R; | |
903 | myBgGradient.color2.rgb[1] = ( Tfloat )G; | |
904 | myBgGradient.color2.rgb[2] = ( Tfloat )B; | |
905 | myBgGradient.color2.rgb[3] = 0.F; | |
906 | ||
907 | myBgGradient.type = AType; | |
908 | } | |
909 | ||
910 | /*----------------------------------------------------------------------*/ | |
911 | ||
912 | //call_togl_set_gradient_type | |
913 | void OpenGl_View::SetBackgroundGradientType (const Aspect_GradientFillMethod AType) | |
914 | { | |
f8b2ed36 | 915 | myBgGradient.type = AType; |
2166f0fa SK |
916 | } |
917 | ||
59f45b7c | 918 | //======================================================================= |
919 | //function : AddZLayer | |
3c3131a0 | 920 | //purpose : |
59f45b7c | 921 | //======================================================================= |
922 | ||
923 | void OpenGl_View::AddZLayer (const Standard_Integer theLayerId) | |
924 | { | |
925 | myZLayers.AddLayer (theLayerId); | |
926 | } | |
927 | ||
928 | //======================================================================= | |
929 | //function : RemoveZLayer | |
3c3131a0 | 930 | //purpose : |
59f45b7c | 931 | //======================================================================= |
932 | ||
933 | void OpenGl_View::RemoveZLayer (const Standard_Integer theLayerId) | |
934 | { | |
935 | myZLayers.RemoveLayer (theLayerId); | |
936 | } | |
937 | ||
938 | //======================================================================= | |
939 | //function : DisplayStructure | |
3c3131a0 | 940 | //purpose : |
59f45b7c | 941 | //======================================================================= |
942 | ||
943 | void OpenGl_View::DisplayStructure (const OpenGl_Structure *theStructure, | |
944 | const Standard_Integer thePriority) | |
945 | { | |
946 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
947 | myZLayers.AddStructure (theStructure, aZLayer, thePriority); | |
948 | } | |
949 | ||
679ecdee | 950 | //======================================================================= |
951 | //function : DisplayImmediateStructure | |
952 | //purpose : | |
953 | //======================================================================= | |
954 | ||
955 | void OpenGl_View::DisplayImmediateStructure (const OpenGl_Structure* theStructure) | |
956 | { | |
957 | for (OpenGl_SequenceOfStructure::Iterator anIter (myImmediateList); | |
958 | anIter.More(); anIter.Next()) | |
959 | { | |
960 | if (anIter.Value() == theStructure) | |
961 | { | |
962 | return; | |
963 | } | |
964 | } | |
965 | ||
966 | myImmediateList.Append (theStructure); | |
967 | } | |
968 | ||
59f45b7c | 969 | //======================================================================= |
970 | //function : EraseStructure | |
3c3131a0 | 971 | //purpose : |
59f45b7c | 972 | //======================================================================= |
973 | ||
974 | void OpenGl_View::EraseStructure (const OpenGl_Structure *theStructure) | |
975 | { | |
976 | Standard_Integer aZLayer = theStructure->GetZLayer (); | |
977 | myZLayers.RemoveStructure (theStructure, aZLayer); | |
978 | } | |
979 | ||
980 | //======================================================================= | |
679ecdee | 981 | //function : EraseImmediateStructure |
982 | //purpose : | |
983 | //======================================================================= | |
984 | ||
985 | void OpenGl_View::EraseImmediateStructure (const OpenGl_Structure* theStructure) | |
986 | { | |
987 | for (OpenGl_SequenceOfStructure::Iterator anIter (myImmediateList); | |
988 | anIter.More(); anIter.Next()) | |
989 | { | |
990 | if (anIter.Value() == theStructure) | |
991 | { | |
992 | myImmediateList.Remove (anIter); | |
993 | return; | |
994 | } | |
995 | } | |
996 | } | |
997 | ||
998 | //======================================================================= | |
59f45b7c | 999 | //function : ChangeZLayer |
1000 | //purpose : | |
1001 | //======================================================================= | |
1002 | ||
1003 | void OpenGl_View::ChangeZLayer (const OpenGl_Structure *theStructure, | |
1004 | const Standard_Integer theNewLayerId) | |
1005 | { | |
1006 | Standard_Integer anOldLayer = theStructure->GetZLayer (); | |
1007 | myZLayers.ChangeLayer (theStructure, anOldLayer, theNewLayerId); | |
1008 | } | |
b5ac8292 | 1009 | |
1010 | //======================================================================= | |
1011 | //function : RedrawScene | |
1012 | //purpose : | |
1013 | //======================================================================= | |
1014 | ||
1015 | void OpenGl_View::RedrawScene (const Handle(OpenGl_PrinterContext)& thePrintContext, | |
1016 | const Handle(OpenGl_Workspace)& theWorkspace, | |
1017 | const OpenGl_Matrix* theProjection, | |
1018 | const OpenGl_Matrix* theOrientation) | |
1019 | { | |
1020 | const Handle(OpenGl_Context)& aContext = theWorkspace->GetGlContext(); | |
1021 | ||
1022 | if (myZClip.Back.IsOn || myZClip.Front.IsOn) | |
1023 | { | |
1024 | Handle(Graphic3d_ClipPlane) aPlaneBack; | |
1025 | Handle(Graphic3d_ClipPlane) aPlaneFront; | |
1026 | ||
1027 | if (myZClip.Back.IsOn) | |
1028 | { | |
1029 | Standard_Real aClipBackConverted = (Standard_Real )myZClip.Front.Limit + myCamera->Distance(); | |
1030 | if (myCamera->ZFar() < aClipBackConverted) | |
1031 | { | |
1032 | aClipBackConverted = myCamera->ZFar(); | |
1033 | myZClip.Back.Limit = (Standard_ShortReal )(aClipBackConverted - myCamera->Distance()); | |
1034 | } | |
1035 | const Graphic3d_ClipPlane::Equation aBackEquation (0.0, 0.0, 1.0, (Standard_ShortReal )aClipBackConverted); | |
1036 | aPlaneBack = new Graphic3d_ClipPlane (aBackEquation); | |
1037 | } | |
1038 | ||
1039 | if (myZClip.Front.IsOn) | |
1040 | { | |
1041 | Standard_Real aClipFrontConverted = (Standard_Real )myZClip.Front.Limit + myCamera->Distance(); | |
1042 | if (myCamera->ZNear() > aClipFrontConverted) | |
1043 | { | |
1044 | aClipFrontConverted = myCamera->ZNear(); | |
1045 | myZClip.Front.Limit = (Standard_ShortReal )(aClipFrontConverted - myCamera->Distance()); | |
1046 | } | |
1047 | const Graphic3d_ClipPlane::Equation aFrontEquation (0.0, 0.0, -1.0, (Standard_ShortReal )-aClipFrontConverted); | |
1048 | aPlaneFront = new Graphic3d_ClipPlane (aFrontEquation); | |
1049 | } | |
1050 | ||
1051 | // do some "memory allocation"-wise optimization | |
1052 | if (!aPlaneBack.IsNull() || !aPlaneFront.IsNull()) | |
1053 | { | |
1054 | Graphic3d_SequenceOfHClipPlane aSlicingPlanes; | |
1055 | if (!aPlaneBack.IsNull()) | |
1056 | { | |
1057 | aSlicingPlanes.Append (aPlaneBack); | |
1058 | } | |
1059 | ||
1060 | if (!aPlaneFront.IsNull()) | |
1061 | { | |
1062 | aSlicingPlanes.Append (aPlaneFront); | |
1063 | } | |
1064 | ||
1065 | // add planes at loaded view matrix state | |
1066 | aContext->ChangeClipping().AddView (aSlicingPlanes, theWorkspace); | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | // Apply user clipping planes | |
1071 | if (!myClipPlanes.IsEmpty()) | |
1072 | { | |
1073 | Graphic3d_SequenceOfHClipPlane aUserPlanes; | |
1074 | Graphic3d_SequenceOfHClipPlane::Iterator aClippingIt (myClipPlanes); | |
1075 | for (; aClippingIt.More(); aClippingIt.Next()) | |
1076 | { | |
1077 | const Handle(Graphic3d_ClipPlane)& aClipPlane = aClippingIt.Value(); | |
1078 | if (aClipPlane->IsOn()) | |
1079 | { | |
1080 | aUserPlanes.Append (aClipPlane); | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | if (!aUserPlanes.IsEmpty()) | |
1085 | { | |
1086 | // add planes at actual matrix state. | |
1087 | aContext->ChangeClipping().AddWorld (aUserPlanes); | |
1088 | } | |
1089 | ||
1090 | if (!aContext->ShaderManager()->IsEmpty()) | |
1091 | { | |
1092 | aContext->ShaderManager()->UpdateClippingState(); | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | // Setup view projection | |
1097 | glMatrixMode (GL_PROJECTION); | |
1098 | ||
1099 | #ifdef _WIN32 | |
1100 | // add printing scale/tiling transformation | |
1101 | if (!thePrintContext.IsNull()) | |
1102 | { | |
1103 | thePrintContext->LoadProjTransformation(); | |
1104 | } | |
1105 | else | |
1106 | #endif | |
1107 | glLoadIdentity(); | |
1108 | ||
1109 | glMultMatrixf ((const GLfloat*)theProjection); | |
1110 | ||
1111 | if (!thePrintContext.IsNull()) | |
1112 | { | |
1113 | // update shader uniform projection matrix with new data | |
1114 | Tmatrix3 aResultProjection; | |
1115 | glGetFloatv (GL_PROJECTION_MATRIX, *aResultProjection); | |
1116 | aContext->ShaderManager()->UpdateProjectionStateTo (&aResultProjection); | |
1117 | ||
1118 | // force shader uniform restore on next frame | |
1119 | myProjectionState = 0; | |
1120 | } | |
1121 | ||
1122 | // Setup view orientation | |
1123 | theWorkspace->SetViewMatrix (theOrientation); | |
1124 | ||
1125 | // Apply Lights | |
1126 | { | |
1127 | // setup lights | |
1128 | Graphic3d_Vec4 anAmbientColor (THE_DEFAULT_AMBIENT[0], | |
1129 | THE_DEFAULT_AMBIENT[1], | |
1130 | THE_DEFAULT_AMBIENT[2], | |
1131 | THE_DEFAULT_AMBIENT[3]); | |
1132 | GLenum aLightGlId = GL_LIGHT0; | |
1133 | for (OpenGl_ListOfLight::Iterator aLightIt (myLights); | |
1134 | aLightIt.More(); aLightIt.Next()) | |
1135 | { | |
1136 | bind_light (aLightIt.Value(), aLightGlId, anAmbientColor); | |
1137 | } | |
1138 | ||
1139 | // apply accumulated ambient color | |
1140 | anAmbientColor.a() = 1.0f; | |
1141 | glLightModelfv (GL_LIGHT_MODEL_AMBIENT, anAmbientColor.GetData()); | |
1142 | ||
1143 | if (aLightGlId != GL_LIGHT0) | |
1144 | { | |
1145 | glEnable (GL_LIGHTING); | |
1146 | } | |
1147 | // switch off unused lights | |
1148 | for (; aLightGlId <= GL_LIGHT7; ++aLightGlId) | |
1149 | { | |
1150 | glDisable (aLightGlId); | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | // Clear status bitfields | |
1155 | theWorkspace->NamedStatus &= ~(OPENGL_NS_2NDPASSNEED | OPENGL_NS_2NDPASSDO); | |
1156 | ||
1157 | // Added PCT for handling of textures | |
1158 | switch (mySurfaceDetail) | |
1159 | { | |
1160 | case Visual3d_TOD_NONE: | |
1161 | theWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1162 | theWorkspace->DisableTexture(); | |
1163 | // Render the view | |
1164 | RenderStructs (theWorkspace); | |
1165 | break; | |
1166 | ||
1167 | case Visual3d_TOD_ENVIRONMENT: | |
1168 | theWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1169 | theWorkspace->EnableTexture (myTextureEnv); | |
1170 | // Render the view | |
1171 | RenderStructs (theWorkspace); | |
1172 | theWorkspace->DisableTexture(); | |
1173 | break; | |
1174 | ||
1175 | case Visual3d_TOD_ALL: | |
1176 | // First pass | |
1177 | theWorkspace->NamedStatus &= ~OPENGL_NS_FORBIDSETTEX; | |
1178 | // Render the view | |
1179 | RenderStructs (theWorkspace); | |
1180 | theWorkspace->DisableTexture(); | |
1181 | ||
1182 | // Second pass | |
1183 | if (theWorkspace->NamedStatus & OPENGL_NS_2NDPASSNEED) | |
1184 | { | |
1185 | theWorkspace->NamedStatus |= OPENGL_NS_2NDPASSDO; | |
1186 | theWorkspace->EnableTexture (myTextureEnv); | |
1187 | ||
1188 | // Remember OpenGl properties | |
1189 | GLint aSaveBlendDst, aSaveBlendSrc; | |
1190 | GLint aSaveZbuffFunc; | |
1191 | GLboolean aSaveZbuffWrite; | |
1192 | glGetBooleanv (GL_DEPTH_WRITEMASK, &aSaveZbuffWrite); | |
1193 | glGetIntegerv (GL_DEPTH_FUNC, &aSaveZbuffFunc); | |
1194 | glGetIntegerv (GL_BLEND_DST, &aSaveBlendDst); | |
1195 | glGetIntegerv (GL_BLEND_SRC, &aSaveBlendSrc); | |
1196 | GLboolean wasZbuffEnabled = glIsEnabled (GL_DEPTH_TEST); | |
1197 | GLboolean wasBlendEnabled = glIsEnabled (GL_BLEND); | |
1198 | ||
1199 | // Change the properties for second rendering pass | |
1200 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
1201 | glEnable (GL_BLEND); | |
1202 | ||
1203 | glDepthFunc (GL_EQUAL); | |
1204 | glDepthMask (GL_FALSE); | |
1205 | glEnable (GL_DEPTH_TEST); | |
1206 | ||
1207 | theWorkspace->NamedStatus |= OPENGL_NS_FORBIDSETTEX; | |
1208 | ||
1209 | // Render the view | |
1210 | RenderStructs (theWorkspace); | |
1211 | theWorkspace->DisableTexture(); | |
1212 | ||
1213 | // Restore properties back | |
1214 | glBlendFunc (aSaveBlendSrc, aSaveBlendDst); | |
1215 | if (!wasBlendEnabled) | |
1216 | glDisable (GL_BLEND); | |
1217 | ||
1218 | glDepthFunc (aSaveZbuffFunc); | |
1219 | glDepthMask (aSaveZbuffWrite); | |
1220 | if (!wasZbuffEnabled) | |
1221 | glDisable (GL_DEPTH_FUNC); | |
1222 | } | |
1223 | break; | |
1224 | } | |
1225 | } |