FYI: OGLMulTex is a great tool for working out multitexturing issues

I haven’t seen it posted here before so I just thought I would mention it now; ATI has a couple great apps for experimenting with multitexturing in both OpenGL and D3D. The GL app is “OGLMulTex” and can be found at:

It requires the GL_ARB_multitexture and GL_EXT_texture_env_combine extensions to run (most new cards seem to support these). Definately worth checking out!