Just wondering whether this is possible:
I want a shader like textures/liquids_sd/siwa_water_2 fade into nothing. Why siwa_water_2? Because it is a good example for a shader with several blend stages.
What I can do is: fade a texture into nothing by using alphablending (that s easy). But that “trick” is done by having the one texture (the nothing) as one stage of that shader, and the visible tex as the other texture.
So what would I need to do to have a surface I use a shader with tcMod scroll, rgbGen and all that stuff on to fade? I can’t really build those stages inside the primary blend stage of an alphashader right?
To work around this: yea i could have brushes I use an alphablending shader on which makes a black tex fade to transparent. That way I can kinda let the other shader “disappear” behind the black. But that s not what I need. I have a brush of like 256 units high, its all visible, and on its surface I want a multiple stage shader effect to fade from 100% visible at the bottom to nothing at the top.
Another thing I can’t get done right now is: Have a multiple stage blend shader slowly fade into vision. The problem with setstates is: objects “pop” into vision. So how can I make a cloud (for example) slowly change from transparent to opaque within like 3 seconds?
Well this is just random thoughts, and leafing through the shader manual didn’t really enlight me, so every help or ideas are appreaciated. 