command "if" in CG

#1

Hi…
I need to choose the smallest value in a “vector” and store its index. I tryed yhis piece of code, but the if test never works - actually, I always get a black screen as result.
…
for (i = 0; i < 64; i++) {
if (a[i] < b) {
b = a[i];
index = i;
} }
…

I’m using a geforce 6800 and compiling with profile fp40.

to debug I tryed to insert a result color inside the if (didnt work) inside the for(work) and outside the for (work after and before)

what am I doing wrong?

#2

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