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XNA 3.0 Game Programming Recipes: A Problem-Solution Approach
book

XNA 3.0 Game Programming Recipes: A Problem-Solution Approach

by Riemer Grootjans
May 2009
Intermediate to advanced content levelIntermediate to advanced
671 pages
18h 34m
English
Apress
Content preview from XNA 3.0 Game Programming Recipes: A Problem-Solution Approach
CHAPTER 6 ■ ADDING LIGHT TO YOUR SCENE IN XNA 3.0
533
Note This example uses a texture with just one solid color in it (blue), so you can be sure all color gradi-
ents in the final result are caused by lighting.
6-3. Add Higher Detail to Your Lighting:
Per-Pixel Lighting
The Problem
Intheprevious two recipes, the amount of shading was calculated in each vertex, and this
shading value was interpolated over all the pixels of the triangle. Therefore, it is called per-
vertex lighting (or Gouraud shading).
Insomecases,thisdoesnotgivethebestresult.Especiallywhenusinglargetriangles
and/or sharp edges, this can give some undesired results. ...
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Publisher Resources

ISBN: 9781430218555Purchase Link