GLSL vs. Cg (with GLSL profile)

OpenGL
1

What is the difference between GLSL and Cg (with the newly added GLSL profile) from NVIDIA? What does “with GLSL profile” mean?

If there is a difference, how come the NVIDIA FX Composer doesn’t support GLSL directly?

Thank you.

2

GLSL profile means you can compile Cg into GLSL.

3

So, just to make sure I understand this, the new FX Composer announced at GDC will output GLSL fragment and vertex scripts as a result of the interactive design session/actions?

Does that mean you can take an HLSL shader from the NVIDIA shader library and generate a GLSL pair from it?

4

Originally posted by robosport:
So, just to make sure I understand this, the new FX Composer announced at GDC will output GLSL fragment and vertex scripts as a result of the interactive design session/actions?
FX Composer 2.0 will let you write GLSL shaders, yes.

Originally posted by robosport:
Does that mean you can take an HLSL shader from the NVIDIA shader library and generate a GLSL pair from it?
Yes, the Cg 1.5 compiler can do this.

5

Thank you.

6

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