When I use Alpha Test + GLSL + Pbuffers on my 9600 it needs a lot of time to compute. But if I use a depth buffer with depth test, there is no such performance drop. Why does this happen?
Alpha test should be the most simplest test (no writing to a depth buffer, … )
Originally posted by olmeca: When I use Alpha Test + GLSL + Pbuffers on my 9600 it needs a lot of time to compute. But if I use a depth buffer with depth test, there is no such performance drop. Why does this happen?
Alpha test should be the most simplest test (no writing to a depth buffer, … )
How much is “lot of time” in this context?
with GLSL shaders, it didnt work, all pixels r drawned…but when i use it with nv_reg_combiners or ati_fragment_shader, it works…whats happening?[/b]
Consider using alpha-to-coverage instead of alpha testing. http://www.humus.ca/index.php?page=3D&ID=61