'Progressive Shader' just means that parts of the shader file wont render for lower-end Video cards. There are keywords in the shader and some code logic that determines what to do if a certain video rendering function is available.

But there are plenty of shaders already in-game that can be used as a basis so you dont even need to write most of this. Just read the shader and figure out what its trying to do, then make appropriate changes to the textures, transparency, vertex manipulation, etc.

Thanks very much for responding.



Clear explanation.



Awsome how this is be done with the shader file with key
words decide what to be done with the available rendering functions.

Thanks again.

I like to learn.