Hello Michael,
thanks for sending the plain text files!
On 01/31/2012 12:44 PM, Michael Raab wrote:
Am 31.01.2012 16:55, schrieb Carsten Neumann:
On 01/31/2012 07:27 AM, Michael Raab wrote:
OpenGL trace is attached. A tried to capture 3 states:
- 1.) No shadows
- 2.) 1 shadow light source enabled
- 3.) shadow light source disabled
1) and 3) make identical OpenGL calls, so it seems the basic logic that
no shadow related calculations happen when there are no light sources works.
There is however an interesting difference in the beginning of the logs
between case 1 and 2: in 2) glLightModelfv(GL_LIGHT_MODEL_AMBIENT, {0,
0, 0, 1}) is used to change the global ambient without it being restored
AFAICT.
Can you give the attached patch a try? It simply adds GL_LIGHTING_BIT to
the glPushAttrib() call in DitherShadowMap::render() - so it will only
work for that mode, the other probably need a similar adjustment.
Cheers,
Carsten
Index: Source/Experimental/ShadowViewport/OSGDitherShadowMap.cpp
===================================================================
RCS file: /cvsroot/opensg/OpenSG/Source/Experimental/ShadowViewport/OSGDitherShadowMap.cpp,v
retrieving revision 1.44
diff -u -r1.44 OSGDitherShadowMap.cpp
--- Source/Experimental/ShadowViewport/OSGDitherShadowMap.cpp 12 Dec 2011 23:49:52 -0000 1.44
+++ Source/Experimental/ShadowViewport/OSGDitherShadowMap.cpp 31 Jan 2012 20:54:48 -0000
@@ -2856,7 +2856,7 @@
_shadowVP->Viewport::render(action);
else
{
- glPushAttrib(GL_ENABLE_BIT);
+ glPushAttrib(GL_ENABLE_BIT | GL_LIGHTING_BIT);
if(!_initTexturesDone)
initTextures(win);
------------------------------------------------------------------------------
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