Hi Robert,
while it would be better to send a fix, but I would rather report it here,
because unsure what is best solution ( the code in discussion is both
relevant to dev version and latest stable version )
in osg/State header file there is a function
inline bool applyModeOnTexUnit(unsigned int
unit,StateAttribute::GLMode mode,bool enabled,ModeStack& ms)
which applies texture mode for texture, say for Texture2D after getting
virtual GLenum getTextureTarget() const { return GL_TEXTURE_2D; }
it sets
glEnable(GL_TEXTURE_2D)
the problem is, that for OpenGL ES 2.0 enabling GL_TEXTURE_2D is a mistake.
And while some drivers might be permissive, my test with ANGLE on windows
provides a clear error message if glEnabled is called.
currently I just omit enabling mode #if defined(OSG_GLES2_AVAILABLE)
but maybe a better solution exists.
Regards
Sergey
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