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Old 16-08-2007, 07:38 PM   #46
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scaryjack, basically you can do two things to generate a normal map:

1) Paint a "bump map/height map". Then convert it into a normal map. This option is good for doors, cubes or simple planar objects and is very fast.

2) Model a high density mesh ( millions of polygons ) + a lowpoly mesh(that will be used in your engine ). Using the highpoly mesh you can project the detail into the lowpoly one. This option is the one that gives you best result but can be slow to generate the normal map and requires to sculpt the highpoly mesh(which can be tedious).

So the first is to choose if you are going to generate the normal map from a height map or using the high/low mesh approach.

You can see some good basic tutorials here:

Hope it helps
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