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1 | // Created on: 2014-05-14 |
2 | // Created by: Denis BOGOLEPOV |
3 | // Copyright (c) 2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
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 |
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. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #ifndef _Graphic3d_RenderingParams_HeaderFile |
17 | #define _Graphic3d_RenderingParams_HeaderFile |
18 | |
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19 | #include <Graphic3d_AspectText3d.hxx> |
20 | #include <Graphic3d_TransformPers.hxx> |
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21 | #include <Graphic3d_RenderTransparentMethod.hxx> |
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22 | #include <Graphic3d_RenderingMode.hxx> |
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23 | #include <Graphic3d_StereoMode.hxx> |
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24 | #include <Graphic3d_ToneMappingMethod.hxx> |
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25 | #include <Graphic3d_Vec4.hxx> |
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26 | |
27 | //! Helper class to store rendering parameters. |
28 | class Graphic3d_RenderingParams |
29 | { |
30 | public: |
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31 | //! Default pixels density. |
32 | static const unsigned int THE_DEFAULT_RESOLUTION = 72u; |
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33 | |
34 | //! Default ray-tracing depth. |
35 | static const Standard_Integer THE_DEFAULT_DEPTH = 3; |
36 | |
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37 | //! Anaglyph filter presets. |
38 | enum Anaglyph |
39 | { |
40 | Anaglyph_RedCyan_Simple, //!< simple filter for Red-Cyan glasses (R+GB) |
41 | Anaglyph_RedCyan_Optimized, //!< optimized filter for Red-Cyan glasses (R+GB) |
42 | Anaglyph_YellowBlue_Simple, //!< simple filter for Yellow-Blue glasses (RG+B) |
43 | Anaglyph_YellowBlue_Optimized, //!< optimized filter for Yellow-Blue glasses (RG+B) |
44 | Anaglyph_GreenMagenta_Simple, //!< simple filter for Green-Magenta glasses (G+RB) |
45 | Anaglyph_UserDefined //!< use externally specified matrices |
46 | }; |
47 | |
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48 | //! Statistics display flags. |
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49 | //! If not specified otherwise, the counter value is computed for a single rendered frame. |
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50 | enum PerfCounters |
51 | { |
52 | PerfCounters_NONE = 0x000, //!< no stats |
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53 | PerfCounters_FrameRate = 0x001, //!< Frame Rate, frames per second (number of frames within elapsed time) |
54 | PerfCounters_CPU = 0x002, //!< CPU utilization as frames per second (number of frames within CPU utilization time (rendering thread)) |
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55 | PerfCounters_Layers = 0x004, //!< count layers (groups of structures) |
56 | PerfCounters_Structures = 0x008, //!< count low-level Structures (normal unhighlighted Presentable Object is usually represented by 1 Structure) |
57 | // |
58 | PerfCounters_Groups = 0x010, //!< count primitive Groups (1 Structure holds 1 or more primitive Group) |
59 | PerfCounters_GroupArrays = 0x020, //!< count Arrays within Primitive Groups (optimal primitive Group holds 1 Array) |
60 | // |
61 | PerfCounters_Triangles = 0x040, //!< count Triangles |
62 | PerfCounters_Points = 0x080, //!< count Points |
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63 | PerfCounters_Lines = 0x100, //!< count Line segments |
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64 | // |
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65 | PerfCounters_EstimMem = 0x200, //!< estimated GPU memory usage |
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66 | // |
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67 | PerfCounters_FrameTime = 0x400, //!< frame CPU utilization time (rendering thread); @sa Graphic3d_FrameStatsTimer |
68 | PerfCounters_FrameTimeMax= 0x800, //!< maximum frame times |
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69 | // |
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70 | PerfCounters_SkipImmediate = 0x1000, //!< do not include immediate viewer updates (e.g. lazy updates without redrawing entire view content) |
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71 | //! show basic statistics |
72 | PerfCounters_Basic = PerfCounters_FrameRate | PerfCounters_CPU | PerfCounters_Layers | PerfCounters_Structures, |
73 | //! extended (verbose) statistics |
74 | PerfCounters_Extended = PerfCounters_Basic |
75 | | PerfCounters_Groups | PerfCounters_GroupArrays |
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76 | | PerfCounters_Triangles | PerfCounters_Points | PerfCounters_Lines |
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77 | | PerfCounters_EstimMem, |
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78 | //! all counters |
79 | PerfCounters_All = PerfCounters_Extended |
80 | | PerfCounters_FrameTime |
81 | | PerfCounters_FrameTimeMax, |
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82 | }; |
83 | |
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84 | //! State of frustum culling optimization. |
85 | enum FrustumCulling |
86 | { |
87 | FrustumCulling_Off, //!< culling is disabled |
88 | FrustumCulling_On, //!< culling is active, and the list of culled entities is automatically updated before redraw |
89 | FrustumCulling_NoUpdate //!< culling is active, but the list of culled entities is not updated |
90 | }; |
91 | |
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92 | public: |
93 | |
94 | //! Creates default rendering parameters. |
95 | Graphic3d_RenderingParams() |
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96 | : Method (Graphic3d_RM_RASTERIZATION), |
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97 | TransparencyMethod (Graphic3d_RTM_BLEND_UNORDERED), |
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98 | LineFeather (1.0f), |
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99 | // PBR parameters |
100 | PbrEnvPow2Size (9), |
101 | PbrEnvSpecMapNbLevels (6), |
102 | PbrEnvBakingDiffNbSamples (1024), |
103 | PbrEnvBakingSpecNbSamples (256), |
104 | PbrEnvBakingProbability (0.99f), |
105 | // |
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106 | OitDepthFactor (0.0f), |
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107 | NbMsaaSamples (0), |
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108 | RenderResolutionScale (1.0f), |
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109 | ToEnableDepthPrepass (Standard_False), |
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110 | ToEnableAlphaToCoverage (Standard_True), |
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111 | // ray tracing parameters |
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112 | IsGlobalIlluminationEnabled (Standard_False), |
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113 | RaytracingDepth (THE_DEFAULT_DEPTH), |
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114 | IsShadowEnabled (Standard_True), |
115 | IsReflectionEnabled (Standard_False), |
116 | IsAntialiasingEnabled (Standard_False), |
117 | IsTransparentShadowEnabled (Standard_False), |
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118 | UseEnvironmentMapBackground (Standard_False), |
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119 | ToIgnoreNormalMapInRayTracing (Standard_False), |
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120 | CoherentPathTracingMode (Standard_False), |
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121 | AdaptiveScreenSampling (Standard_False), |
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122 | AdaptiveScreenSamplingAtomic(Standard_False), |
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123 | ShowSamplingTiles (Standard_False), |
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124 | TwoSidedBsdfModels (Standard_False), |
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125 | RadianceClampingValue (30.0), |
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126 | RebuildRayTracingShaders (Standard_False), |
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127 | RayTracingTileSize (32), |
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128 | NbRayTracingTiles (16 * 16), |
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129 | CameraApertureRadius (0.0f), |
130 | CameraFocalPlaneDist (1.0f), |
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131 | FrustumCullingState (FrustumCulling_On), |
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132 | ToneMappingMethod (Graphic3d_ToneMappingMethod_Disabled), |
133 | Exposure (0.f), |
134 | WhitePoint (1.f), |
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135 | // stereoscopic parameters |
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136 | StereoMode (Graphic3d_StereoMode_QuadBuffer), |
137 | AnaglyphFilter (Anaglyph_RedCyan_Optimized), |
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138 | ToReverseStereo (Standard_False), |
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139 | // |
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140 | StatsPosition (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_UPPER, Graphic3d_Vec2i (20, 20))), |
141 | ChartPosition (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_RIGHT_UPPER, Graphic3d_Vec2i (20, 20))), |
142 | ChartSize (-1, -1), |
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143 | StatsTextAspect (new Graphic3d_AspectText3d()), |
144 | StatsUpdateInterval (1.0), |
145 | StatsTextHeight (16), |
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146 | StatsNbFrames (1), |
147 | StatsMaxChartTime (0.1f), |
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148 | CollectedStats (PerfCounters_Basic), |
149 | ToShowStats (Standard_False), |
150 | // |
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151 | Resolution (THE_DEFAULT_RESOLUTION) |
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152 | { |
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153 | const Graphic3d_Vec4 aZero (0.0f, 0.0f, 0.0f, 0.0f); |
154 | AnaglyphLeft .SetRow (0, Graphic3d_Vec4 (1.0f, 0.0f, 0.0f, 0.0f)); |
155 | AnaglyphLeft .SetRow (1, aZero); |
156 | AnaglyphLeft .SetRow (2, aZero); |
157 | AnaglyphLeft .SetRow (3, aZero); |
158 | AnaglyphRight.SetRow (0, aZero); |
159 | AnaglyphRight.SetRow (1, Graphic3d_Vec4 (0.0f, 1.0f, 0.0f, 0.0f)); |
160 | AnaglyphRight.SetRow (2, Graphic3d_Vec4 (0.0f, 0.0f, 1.0f, 0.0f)); |
161 | AnaglyphRight.SetRow (3, aZero); |
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162 | |
163 | StatsTextAspect->SetColor (Quantity_NOC_WHITE); |
164 | StatsTextAspect->SetColorSubTitle (Quantity_NOC_BLACK); |
165 | StatsTextAspect->SetFont (Font_NOF_ASCII_MONO); |
166 | StatsTextAspect->SetDisplayType (Aspect_TODT_SHADOW); |
167 | StatsTextAspect->SetTextZoomable (Standard_False); |
168 | StatsTextAspect->SetTextFontAspect (Font_FA_Regular); |
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169 | } |
170 | |
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171 | //! Returns resolution ratio. |
172 | Standard_ShortReal ResolutionRatio() const |
173 | { |
174 | return Resolution / static_cast<Standard_ShortReal> (THE_DEFAULT_RESOLUTION); |
175 | } |
176 | |
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177 | public: |
178 | |
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179 | Graphic3d_RenderingMode Method; //!< specifies rendering mode, Graphic3d_RM_RASTERIZATION by default |
180 | Graphic3d_RenderTransparentMethod TransparencyMethod; //!< specifies rendering method for transparent graphics |
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181 | Standard_ShortReal LineFeather; //!< line feater width in pixels (> 0.0), 1.0 by default; |
182 | //! high values produce blurred results, small values produce sharp (aliased) edges |
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183 | |
184 | Standard_Integer PbrEnvPow2Size; //!< size of IBL maps side can be calculated as 2^PbrEnvPow2Size (> 0), 9 by default |
185 | Standard_Integer PbrEnvSpecMapNbLevels; //!< number of levels used in specular IBL map (> 1), 6 by default |
186 | Standard_Integer PbrEnvBakingDiffNbSamples; //!< number of samples used in Monte-Carlo integration during diffuse IBL map's |
187 | //! spherical harmonics coefficients generation (> 0), 1024 by default |
188 | Standard_Integer PbrEnvBakingSpecNbSamples; //!< number of samples used in Monte-Carlo integration during specular IBL map's generation (> 0), 256 by default |
189 | Standard_ShortReal PbrEnvBakingProbability; //!< controls strength of samples reducing strategy during specular IBL map's generation |
190 | //! (see 'SpecIBLMapSamplesFactor' function for detail explanation) [0.0, 1.0], 0.99 by default |
191 | |
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192 | Standard_ShortReal OitDepthFactor; //!< scalar factor [0-1] controlling influence of depth of a fragment to its final coverage |
193 | Standard_Integer NbMsaaSamples; //!< number of MSAA samples (should be within 0..GL_MAX_SAMPLES, power-of-two number), 0 by default |
194 | Standard_ShortReal RenderResolutionScale; //!< rendering resolution scale factor, 1 by default; |
195 | //! incompatible with MSAA (e.g. NbMsaaSamples should be set to 0) |
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196 | Standard_Boolean ToEnableDepthPrepass; //!< enables/disables depth pre-pass, False by default |
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197 | Standard_Boolean ToEnableAlphaToCoverage; //!< enables/disables alpha to coverage, True by default |
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198 | |
199 | Standard_Boolean IsGlobalIlluminationEnabled; //!< enables/disables global illumination effects (path tracing) |
200 | Standard_Integer SamplesPerPixel; //!< number of samples per pixel (SPP) |
201 | Standard_Integer RaytracingDepth; //!< maximum ray-tracing depth, 3 by default |
202 | Standard_Boolean IsShadowEnabled; //!< enables/disables shadows rendering, True by default |
203 | Standard_Boolean IsReflectionEnabled; //!< enables/disables specular reflections, False by default |
204 | Standard_Boolean IsAntialiasingEnabled; //!< enables/disables adaptive anti-aliasing, False by default |
205 | Standard_Boolean IsTransparentShadowEnabled; //!< enables/disables light propagation through transparent media, False by default |
206 | Standard_Boolean UseEnvironmentMapBackground; //!< enables/disables environment map background |
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207 | Standard_Boolean ToIgnoreNormalMapInRayTracing; //!< enables/disables normal map ignoring during path tracing; FALSE by default |
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208 | Standard_Boolean CoherentPathTracingMode; //!< enables/disables 'coherent' tracing mode (single RNG seed within 16x16 image blocks) |
209 | Standard_Boolean AdaptiveScreenSampling; //!< enables/disables adaptive screen sampling mode for path tracing, FALSE by default |
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210 | Standard_Boolean AdaptiveScreenSamplingAtomic;//!< enables/disables usage of atomic float operations within adaptive screen sampling, FALSE by default |
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211 | Standard_Boolean ShowSamplingTiles; //!< enables/disables debug mode for adaptive screen sampling, FALSE by default |
212 | Standard_Boolean TwoSidedBsdfModels; //!< forces path tracing to use two-sided versions of original one-sided scattering models |
213 | Standard_ShortReal RadianceClampingValue; //!< maximum radiance value used for clamping radiance estimation. |
214 | Standard_Boolean RebuildRayTracingShaders; //!< forces rebuilding ray tracing shaders at the next frame |
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215 | Standard_Integer RayTracingTileSize; //!< screen tile size, 32 by default (adaptive sampling mode of path tracing); |
216 | Standard_Integer NbRayTracingTiles; //!< maximum number of screen tiles per frame, 256 by default (adaptive sampling mode of path tracing); |
217 | //! this parameter limits the number of tiles to be rendered per redraw, increasing Viewer interactivity, |
218 | //! but also increasing the time for achieving a good quality; -1 means no limit |
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219 | Standard_ShortReal CameraApertureRadius; //!< aperture radius of perspective camera used for depth-of-field, 0.0 by default (no DOF) (path tracing only) |
220 | Standard_ShortReal CameraFocalPlaneDist; //!< focal distance of perspective camera used for depth-of field, 1.0 by default (path tracing only) |
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221 | FrustumCulling FrustumCullingState; //!< state of frustum culling optimization; FrustumCulling_On by default |
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222 | |
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223 | Graphic3d_ToneMappingMethod ToneMappingMethod; //!< specifies tone mapping method for path tracing, Graphic3d_ToneMappingMethod_Disabled by default |
224 | Standard_ShortReal Exposure; //!< exposure value used for tone mapping (path tracing), 0.0 by default |
225 | Standard_ShortReal WhitePoint; //!< white point value used in filmic tone mapping (path tracing), 1.0 by default |
226 | |
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227 | Graphic3d_StereoMode StereoMode; //!< stereoscopic output mode, Graphic3d_StereoMode_QuadBuffer by default |
228 | Anaglyph AnaglyphFilter; //!< filter for anaglyph output, Anaglyph_RedCyan_Optimized by default |
229 | Graphic3d_Mat4 AnaglyphLeft; //!< left anaglyph filter (in normalized colorspace), Color = AnaglyphRight * theColorRight + AnaglyphLeft * theColorLeft; |
230 | Graphic3d_Mat4 AnaglyphRight; //!< right anaglyph filter (in normalized colorspace), Color = AnaglyphRight * theColorRight + AnaglyphLeft * theColorLeft; |
231 | Standard_Boolean ToReverseStereo; //!< flag to reverse stereo pair, FALSE by default |
232 | |
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233 | Handle(Graphic3d_TransformPers) StatsPosition; //!< location of stats, upper-left position by default |
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234 | Handle(Graphic3d_TransformPers) ChartPosition; //!< location of stats chart, upper-right position by default |
235 | Graphic3d_Vec2i ChartSize; //!< chart size in pixels, (-1, -1) by default which means that chart will occupy a portion of viewport |
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236 | Handle(Graphic3d_AspectText3d) StatsTextAspect; //!< stats text aspect |
237 | Standard_ShortReal StatsUpdateInterval; //!< time interval between stats updates in seconds, 1.0 second by default; |
238 | //! too often updates might impact performance and will smear text within widgets |
239 | //! (especially framerate, which is better averaging); |
240 | //! 0.0 interval will force updating on each frame |
241 | Standard_Integer StatsTextHeight; //!< stats text size; 16 by default |
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242 | Standard_Integer StatsNbFrames; //!< number of data frames to collect history; 1 by default |
243 | Standard_ShortReal StatsMaxChartTime; //!< upper time limit within frame chart in seconds; 0.1 seconds by default (100 ms or 10 FPS) |
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244 | PerfCounters CollectedStats; //!< performance counters to collect, PerfCounters_Basic by default; |
245 | //! too verbose options might impact rendering performance, |
246 | //! because some counters might lack caching optimization (and will require expensive iteration through all data structures) |
247 | Standard_Boolean ToShowStats; //!< display performance statistics, FALSE by default; |
248 | //! note that counters specified within CollectedStats will be updated nevertheless |
249 | //! of visibility of widget managed by ToShowStats flag (e.g. stats can be retrieved by application for displaying using other methods) |
250 | |
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251 | unsigned int Resolution; //!< Pixels density (PPI), defines scaling factor for parameters like text size |
252 | //! (when defined in screen-space units rather than in 3D) to be properly displayed |
253 | //! on device (screen / printer). 72 is default value. |
254 | //! Note that using difference resolution in different Views in same Viewer |
255 | //! will lead to performance regression (for example, text will be recreated every time). |
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256 | }; |
257 | |
258 | #endif // _Graphic3d_RenderingParams_HeaderFile |