I haven't heard of glBlendEquasion, is that a glew call?
Yeah, you need to check if the GL_ARB_imaging extension is present using glGetString.
http://developer.apple.com/documentation/Darwin/Reference/ManPages/man3/glBlendEquation.3.html
Yeah, you need to check if the GL_ARB_imaging extension is present using glGetString.
http://developer.apple.com/documentation/Darwin/Reference/ManPages/man3/glBlendEquation.3.html