Hi Robert,
working with OpenGL ES 2.0 with Angle ( I also checked ATI OpenGL ES SDK )
with osg 3.2
I have a warning "Detected OpenGL error invalid enumerant" on this line in
State.cpp
glGetIntegerv(GL_MAX_TEXTURE_COORDS,&_glMaxTextureCoords);
( in following part of code in function void
State::initializeExtensionProcs() )
if ( osg::getGLVersionNumber() >= 2.0 ||
osg::isGLExtensionSupported(_contextID,"GL_ARB_vertex_shader") ||
OSG_GLES2_FEATURES)
{
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,&_glMaxTextureUnits);
glGetIntegerv(GL_MAX_TEXTURE_COORDS,&_glMaxTextureCoords);
}
I asked Angle project list that maybe they are wrong here ( but still ATI
ES SDK also lacks GL_MAX_TEXTURE_COORDS ) and they responded they are not,
the GL_MAX_TEXTURE_COORDS is underfined for OpenGL ES 2.0
So, possibly here there should be a code like
if ( osg::getGLVersionNumber() >= 2.0 ||
osg::isGLExtensionSupported(_contextID,"GL_ARB_vertex_shader") ||
OSG_GLES2_FEATURES)
{
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,&_glMaxTextureUnits);
if(OSG_GLES2_FEATURES)
{
_glMaxTextureCoords = _glMaxTextureUnits;
}
else
glGetIntegerv(GL_MAX_TEXTURE_COORDS,&_glMaxTextureCoords);
}
?
Best regards
Sergey
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