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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
574
The Code
All the code is available for download at www.apress.com.
All effect files were listed completely earlier in the recipe. The same holds for the main meth-
ods related to deferred shading. Since you’ve split up your code into methods, your Draw
method stays pretty clean:
protected override void Draw(GameTime gameTime)
{
//render color, normal and depth into 3 render targets
RenderSceneTo3RenderTargets();
//Add lighting contribution of each light onto shadingMap
shadingMap = GenerateShadingMap();
//Combine base color map and shading map
CombineColorAndShading();
base.Draw(gameTime);
}
Performance Tip
For each light, your pixel shader will calculate the lighting influence for all the pixels ...
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Publisher Resources

ISBN: 9781430218555Purchase Link