Irrlicht Engine

There is a particular reason for which irrlicht doesn't support Cg and CgFX ? I want to try to implement it, but first i want to know if there is a reason for which it has not be done before (incompatibilities, etc...)

THanks!

Cg needs external libraries to do the same thing as all the other shaders AFAIK. So it would be better to use a Cg compiler initially and put the generated shader into the app. But since many people like Cg it might become part of the contribution files of Irrlicht.

I think an effect shader might be useful more than Cg itself. But DirectX FX files are not cross platform, so i think CgFX support in Irrlicht could be an useful thing. I think external libraries is not a very big problem...

I believe Cg shaders are the only fully cross-platform shaders in the sense that a cg shader can be compiled for use with directx or opengl, and the Cg API provides functions for handling Cg shaders in both OpenGL and DirectX . To the best of my knowledge this is not possible with HLSL or GLSL, although both of those language obviously have their own advantages.