Mark., on 24 November 2012 - 01:09 PM, said:
Some of you may have already discovered this. But if you haven't, I was messing around with different settings of various things to increase framerate. Using Polymer, one thing I found out is there is little or no difference between enabling or disabling all the normal and spec maps for my 40 custom texures and models. There are a few HRP textures with normal and spec maps still running because it was too much trouble to disable those too. But I think there would still be no difference with those shut off too. Just something to keep in mind when mapping.
It all depends. Normal and specular maps affect fillrate, so if you have a crappy videocard, disabling them improves performance if you're being limited by fillrate. If you have a lot of Polymer lights in an area with many normal maps, those apparently will have to be re-drawn many times so performance will drastically decrease. My 8800GT ran some areas at like 20FPS with normal maps enabled and disabling them would make the same area run at 60FPS, until some other bottleneck is hit.