Hi,  I've made this brick wall with two heightfields, they don't have 
textures, just a color of rgb 1, the light source gives the yellowish color.

First image is without (Sans) smooth in the HF, and the HF image was in 
8bit grayscale.
Second image is With smooth at 8bit grayscale.
Third image is Sans smooth with the Anti-Aliasing Sampling Method 1 with 
a 16bit grayscale HF
Fourth image is With smooth with Sampling Method 1 with 16bit HF.
Fifth image is Sans smooth with SM 2 with 16bit HF
Sixth image is With smooth with SM 2 with 16bit HF

It's not a complete comparison, but I can tell you that 8bit 
heightfields sucks in this scene!

Then, which do you prefer?  Keep in mind that I can always add a bump 
map to simulate graininess that would fit with the bricks.

I personnally like the last one.

Xilo

-- 
Dedicated to audio/visual and interactive artwork.
http://www.geocities.com/simonlemieux/

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