Hello,

I have some queries regarding how to apply shaders -

1.Suppose I have downloaded a shader file from the internet. Now can I apply that shader effect to a particular region or regions of an object or mesh and not the whole surface of the object / mesh ? If so, how ?

2.Can shaders be applied to the screen itself ( not the objects in the screen ) ? If true, how ?

3.Thirdly applying different shaders to different portion of a screen - possible or not ? If possible then how ?

4.Fourthly - can I pass data - variable values / textures etc. at run - time from the Lite-C code to the shader or in other words can the loaded shader be manipulated at run ? If possible then how ?

Thanks,