Addtive texture transparency

[Asier Murciego]

hi!

how can i get additive transparency when drawing my textures? i use Blend( ONE, ONE ); but it doesn´t work as i expected.

i want saturated add:

Rs+Rd = (Rs+Rd) > 255 ? 255 : (Rs+Rd);

thx!

PD: do i have to use any extension like env_combine?

[Humus]

Well ... glBlend(GL_ONE,GL_ONE) actually works that way (at least should work that way)

[Asier Murciego]

i've found the problem...it was the zbuffer, (cause i'm not using to use zbuffering) that 'was eating' some pixels from the triangle...

thx anyway!!!