CgFX in 3d Studio Max. Page 7

[08/20/2003 01:53 PM | Graphics]
by Igor Sivakov

CgFX is a dialect of the Cg language (C for Graphics) invented by NVIDIA for programming the so-called hardware shaders. In this article we will take a closer look at this language and will try to reveal its advantages at the example of 3d studio max graphics package.

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DiffNoise.fx – DirectX 8, 3D noise texture, 1 light source:

When the object is transformed, its texture appears “noisy” - quite a weird effect.

Dispersion.fx – light dispersion shader, DirectX 8, texture, assembler, fixed functions:

Ghostly2.fx – DirectX 8, transparency, texture, assembler:

So, the test results suggest that DirectX 9 shaders are generally much harder on the graphics cards compared to their DirectX 8 analogs – that's the price you pay for higher settings flexibility, new capabilities and easy programmability.