[osg-users] GL Error vulnerability in OSG 3.4.0 (invalid enum)

[Rick Irons]

Hi,

openscenegraph/src/osg/GLExtensions.cpp should probably be checking the OpenGL version prior to using the GL_MAX_3D_TEXTURE_SIZE and GL_MAX_ARRAY_TEXTURE_LAYERS_EXT enums (see change below).  Otherwise, such calls will generate GL errors when using older versions of OpenGL.  Any concerns with such a change?

Thanks,
Rick
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