ARB_Multitexture

I wonder if it is possible to do additive blending with GL_ARB_MULTITEXTURE extension.

I would like to make something similar to using GL_SRC_ALPHA or GL_SRC_ALPHA blending functions for example.

It seems that ARB_Multitexture only allow to make a product of the textures (like GL_SRC_COLOR or GL_DST_COLOR)

thx for any help
cheers.

Doesn’t this work?

glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD);

– Zeno

That enumerant is only allowed if you have the EXT_texture_env_add extension.

ARB_multitexture does not support any new env modes - it left that for other extensions.

Thanks -
Cass