Hi,

I am making a game engine with multiple rendering interfaces (currently only DX10 and OpenGL 3) and am trying to integrate CGFX into my pipeline. I have looked at the docs for CGFX but cannot seem to find anything that suits my needs.

What I am trying to do is compile a CGFX file to HLSL byte code as I can then just use my DX10Effect class to load the bytecode to a DX10 effect and DX will be happy. Looking at the docs for CGFX it seems I cannot get the DX10 bytecode from a CGFX effect. This means I will have to use CG to do all the effect technique and parameter work instead of DX itself.

Does anyone know if it is possible to get the DX10 bytecode from a CGFX effect?

Thanks.

Thanks for your help,

I could just do that but I am trying to look for a universal solution where I can take the CGFX effect, compile to the specific rendering API like DX10, save the results as a DX10 effect and then load the DX10 effect at runtime without using the CGFX API to set each parameter and so on.

I could always just compile the effect using CGFX, get all programs in the effect, extract the DX10 data and make a DX10 effect out of that, although I am pretty sure I would lose the information on techniques and parameters.

Any ideas guys?

Thanks.

Thanks for your advice,

I will take a look at HLSL2GLSL as it does look promising. It is sad though, that CG is not able to output an effect file as DX bytecode and requires you to use their runtime instead of DX's. If it allowed you to do that, it would be an efficient solution to cross platform shaders.

I was thinking about using just the Vertex and Fragment programs instead of the whole effect file. Is there any benefit (other than the fact I can use techniques and passes), of using effects instead of the individual programs if I am doing all my state changes in my program code instead of in the effect? I can't think of any reason off the top of my head.

Looks like i'll try using individual programs and see how it goes.