Quote:
Originally Posted by vkirchner
What is the reason for doing this, use the low poly except in the extreme closeups?
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The idea is to use always the lowpoly model, faking the highpoly model aspect all the time. The highpoly model won't be used in realtime at all. Only the lowpoly model is used.
For closeups the effect is still good because normal mapping operates at pixel level so, basically, you will get almost the same aspect than the highpoly one but using 1000 times less polygons ( but using more pixel shader charge )
A "parallax" effect can be added to normal mapping to enhace the aspect of walls, bricks, wrinkles, etc... play with the parallax slider of the wall example in xnormal to see this.
Normal mapping is not perfect but is a good and very fast trick!