1. Introduction to Geometry Shaders Patrick Cozzi Analytical Graphics, Inc.

4. Geometry Shaders in the Pipeline Vertex Shader Fragment Shader Vertices in world coordinates Vertex Shader Fragment Shader Vertices in world coordinates Perspective Divide and Viewport Transformation clip coordinates window coordinates

5. Geometry Shaders in the Pipeline Geometry Shader Vertex Shader Fragment Shader Primitive Assembly PD and VT Geometry Shader Vertex Shader Fragment Shader Primitive Assembly Clipping PD and VT Geometry Shader Vertex Shader Fragment Shader PD and VT clip coordinates clip coordinates window coordinates

6. Primitive Types Geometry Shader Output primitives can be disconnected

13. Applications - Billboards Code: miniglobe.svn.sourceforge.net/viewvc/miniglobe/Source/Scene/Renderables/BillboardCollection/

14. Applications - Billboards Code: miniglobe.svn.sourceforge.net/viewvc/miniglobe/Source/Scene/Renderables/BillboardCollection/

15. Applications – Wide Lines glLineWidth with width > 1 is deprecated in OpenGL 3.

16. Applications – Wide Lines

20. Applications: Fur in Lost Planet Images from meshula.net/wordpress/?p=124 color angle length