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0032302: Visualization, TKOpenGles - do not use window buffer by default

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OpenGl_Caps::useSystemBuffer is now set to FALSE on both OpenGL and OpenGL ES.
OpenGl_Caps::buffersNoSwap and OpenGl_Caps::buffersOpaqueAlpha are now set to TRUE by default on WebGL.
This commit is contained in:
kgv 2021-04-15 11:27:38 +03:00 committed by bugmaster
parent 87b68a0fd6
commit d85cd274c4
1 changed files with 8 additions and 10 deletions
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18
src/OpenGl/OpenGl_Caps.cxx
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@ -31,23 +31,14 @@ OpenGl_Caps::OpenGl_Caps()
keepArrayData (Standard_False),
ffpEnable (Standard_False),
usePolygonMode (Standard_False),
#if !defined(GL_ES_VERSION_2_0)
useSystemBuffer (Standard_False),
#else
useSystemBuffer (Standard_True),
#endif
swapInterval (1),
useZeroToOneDepth (Standard_False),
buffersNoSwap (Standard_False),
buffersOpaqueAlpha(Standard_False),
contextStereo (Standard_False),
#ifdef OCCT_DEBUG
contextDebug (Standard_True),
contextSyncDebug (Standard_True),
#else
contextDebug (Standard_False),
contextSyncDebug (Standard_False),
#endif
contextNoAccel (Standard_False),
#if !defined(GL_ES_VERSION_2_0)
contextCompatible (Standard_True),
@ -62,7 +53,14 @@ OpenGl_Caps::OpenGl_Caps()
suppressExtraMsg (Standard_True),
glslDumpLevel (OpenGl_ShaderProgramDumpLevel_Off)
{
//
#if defined(__EMSCRIPTEN__)
buffersNoSwap = true; // swap has no effect in WebGL
buffersOpaqueAlpha = true; // avoid unexpected blending of canvas with page background
#endif
#ifdef OCCT_DEBUG
contextDebug = true;
contextSyncDebug = true;
#endif
}
// =======================================================================