GLSL function noise*() support on NVIDIA GeForce 8 Options

[awhig]

Hello there,

I am using noise*() ; where * = 1,2,3,4 in my GLSL written fragment shader and running on GeForce 8800 GS. I read NVIDIA's Release 95 [dated Oct 2006] driver notes, where it mentions about GLSL's noise*() returning 0.0 , even though GLSL official notes and Orange book states to return values in range [-1.0 , 1.0].

I wish to confirm whether the above currently holds true for GeForce 8 series.


What made me to use noise*() was to write a shader that generates a random number using Gaussian distribution. If there is any other better of doing so, please guide.

Guidance Appreciated.

[Nigel @ NVIDIA]

GLSL official notes and Orange book states to return values in range [-1.0 , 1.0].

And 0.0 satisfies the GLSL requirement.

- Nigel