Loops in Cg?

Archived Forums Questions & Answers
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Can I perform loop e.g for loops inside Cg? my GPU is a pre-war intel GMA 3100, SM2.0 lol

What do you mean by "Cg" ?

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well, as the tag says, Cg = C for Graphics :), Cg in Shaderlab

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1 Answer

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I believe that, while the Cg for loop syntax is identical to that in C, Cg only supports for loops that can be fully unrolled at compile-time.

Well, how does that go? I mean a little example?

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for(i = 0; i<5; i++) is ok, because the number of loop iterations is entirely deterministic and known at compile-time. Therefore it is possible to unroll - rewrite this code omitting the for loop by just duplicating that block of code five times. for(i = 0; i

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Thanks, I'll try looping some code ;)

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Thanks, it looped. But I can't seem to swizzle inside the loops :/ how about that?

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