How can u tell OpenGL that f.i. GL_TEXTURE1_ARB is mapped on GL_TEXTURE0_ARB with a transperency of 0.7f or 0.2f etc. ? I can only achieve that both textures are mixed equally on my primitive…
Thnx
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Use the combine extension GL_ARB_texture_env_combine you also have NV_texture_env_combine4 for nvidia cards.
What is f.i.?
f.i. = for instance
Can you please tell me how to use the func?? And the use of an alpha-value?
Thnx
There’s a complete reference of register combiners in the newest nVidia OpenGL SDK Documentation(in the extensions specification), and it’s downloadable from nvidia.com.
Kistompika
Using register combiners (if you have a GeForce) can be great for more advanced stuff. For simpler things is it a overkill and probably not the easiest way to do it.
You will find some information in the NeHe tutorial 22. Zed has some samples on his page http://members.nbci.com/myBollux
also check the ati developer website there used to be a utility there that’ll demonstrate the tex_env_combine extension