The upcoming OpenGL 1.5 specification includes the revolutionary OpenGL Shading Language, official ARB extensions that will form the foundation of OpenGL 2.0. The OpenGL Shading Language will enable-for the first time-graphics cards from virtually any vendor on virtually any platform to use the same high-level shading language. New features in OpenGL 1.5 include:

• Vertex Buffer Object: vertex arrays for higher performance rendering
  
• Occlusion Query: asynchronous occlusion test for better culling
  
• OpenGL Shading Language v. 1.0: as official extensions including shader objects, vertex shaders, and fragment shaders, all for use of programmable shader hardware
• Shadow Function: additional comparison functions for shadow mapping
  
• Non power-of-two Textures: for more efficient use of texture memory, including mipmaps

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