Originally Posted by semlar
It's actually not as resource intensive as you might think to draw the same texture even hundreds of times on the screen once it's been loaded into memory, it has a fairly minor impact on performance.
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Actually, I was thinking of each texcoord calculation step. Actual drawing would be much faster since that's all handled on C side.
I had to tear down one of my private addons because I was doing literally hundreds of vector calculations and in raid, it bogged my computer down a lot even with that as the only code running. I have a new version of my vector library built for a new iteration of the addon, but it's far from completed to the point where I can stress test it.