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Shading Languages:
 GLSL vs Cg - Compares the APIs, workflow and variable types between GLSL and Cg. GPU Shading - GLSL and ARB examples of texture mapping and lighting; includes code examples and screen shots. PDF OpenGL Geometry Shader4 Extension - Specification for OpenGL's geometry shader APIs. Geometry shaders live in between vertex and fragment shaders in OpenGL's pipeline, and are used to introduce new primitives based on incoming vertices. Detailed documentation and pipeline diagram. OpenGL Shader Designer - A freeware shader development IDE for Windows; aids in developing vertex and fragment (pixel) shaders in GLSL. Includes tools, tutorials, and sample Space Invaders app (requires VC++ 4). Shader Language Comparison - PDF comparing HLSL, GLSL and Cg. Includes diagrams and code samples. PDF Shader Programming - Dr. Jian Huang's presentation on OpenGL shaders; includes history, overview, rendering examples, and comparisons of ARB vs Cg. PDF Shader Theory - A tutorial on the basics of shading theory in 3D computer graphics.Suggested link
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Travel in Italy
A guide for your vacation in Italy: hotels and hostels, bed and breakfast, resort, apartments and lodging with online prenotations. All you need to know to enjoy your trip in Rome, Florence, Venice or Naples: transportation, travel guides, travel services, train, airplane fares, museums, maps and views, shopping, recreation and sports, arts and entertainment...
www.travel-in-italy.info
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