Quake3World

A similar topic is going on on the JKhub forums but I think it would be more clever to start a thread here as there are more of the hardcore devs around here.
So I met this guy on Soldier of Fortune II a while ago and he tested something which looks neat but it doesnt work on NVIDIA cards somehow. I wonder if there's a fix for this and if it happens in all Q3 based games.

The shader used:
[spoiler]textures/mk_textures/multiblend_01
{
qer_editorimage textures/mk_textures/multiblend_01
q3map_globaltexture
{
map textures/mk_textures/block_base_01
}
{
map textures/mk_textures/blender_01
blendFunc GL_ZERO GL_ONE_MINUS_SRC_COLOR
tcMod scale 0.25 0.25
}
{
map textures/mk_textures/cracks_01
blendFunc GL_ONE_MINUS_DST_ALPHA GL_DST_ALPHA
}
{
map textures/mk_textures/blender_01
blendFunc GL_ZERO GL_ONE_MINUS_SRC_COLOR
tcMod scale 0.2 0.2
}
{
map textures/mk_textures/sand_01
blendFunc GL_ONE_MINUS_DST_ALPHA GL_DST_ALPHA
}
{
map $lightmap
blendFunc GL_DST_COLOR GL_ZERO
}
}[/spoiler]

What it should look like and what it looks like (notice the random sand and cracks):



Same map in JKA on NVIDIA card


And it has to do something with this (in ShaderED)


The other topic on JKHUB for additional info:
https://jkhub.org/topic/7226-alpha-blen ... dia-issue/

Most likely that's due to buggy drivers - someone needs to code a workaround for that to make it work again most likely...

Are those models? I've read somewhere that some games when map is compiled models are entirely black regardless on lighting. Unfortunately I do not remember where and how it was fixed