Game Programming Class14

Mixing 2D and 3D

I forgot to show you last week that the spritebatch draw code need to be modified slighty in order top mix 2D and 3D

	        spriteBatch.Begin(SpriteBlendMode.AlphaBlend, SpriteSortMode.Deferred, SaveStateMode.SaveState);

Lighting

The xna basic effect is a simple implementation of a <a href="http://msdn.microsoft.com/en-us/library/bb509561%28VS.85%29.aspx">HLSL</a> effect.

HLSL is Microsofts High level implementeion of FFE Fixed Function Pipeline implemted in video hardware.</p> GPU Hardware does two things The vertexr shader runs first and is rasterized to 2D then the pixel shaders run.

• Vertex Shader
• Pixel Shader

Lighting Demo with Basic Effect IntroMeshLights.zip

HLSL

HLSL Demo

Lighting_basics

Per-pixel_lighting

SkyBox

<a href="http://www.ziggyware.com/readarticle.php?article_id=71">http://www.ziggyware.com/readarticle.php?article_id=71</a>

  			

           <a href="ClassSource/Projects/IntroMeshLightsSkyBox.zip">IntroMeshLightsSkyBox.zip</a>
           

           

           ??
           http://www.planetside.co.uk/terragen/

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