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Old 06-12-03, 02:54 AM   #12
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Join Date: Dec 2002
Posts: 9

I found a GF2MX card and it does not seem to support polygon smoothing.

bwkaz - front to back does seem strange. It works because of the alpha term in the GL_SRC_ALPHA_SATURATE blend function.

(f, f, f, 1); where f = min(As, 1-Ad)

This mode uses the alpha channel to accumulate the coverage value for each pixel. The other functions work in simple cases but fail where 2 or more smoothed edges overlap.

As for the poor visual performance of the test program, it might be bad because of some default value that needs tweeked. For example I did not set the smooth hint to GL_NICEST -- though setting it does not help.

ssross is offline   Reply With Quote