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Howto:Shader programming in FlightGear: Difference between revisions
Howto:Shader programming in FlightGear (view source)
Revision as of 11:12, 27 March 2010
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= Intro = | = Intro = | ||
GLSL (OpenGL Shading Language or "GLslang") is the official OpenGL shading language and allows you to write programs, so called "shaders" in a high level shading language that is based on the C programming language. | GLSL (OpenGL Shading Language or "GLslang") is the official OpenGL shading language and allows you to write programs, so called "shaders" in a high level shading language that is based on the C programming language to create OpenGL fragment (pixel) and vertex shaders. | ||
With the recent advances in graphics cards, new features have been added to allow for increased flexibility in the rendering pipeline at the vertex and fragment level. Programmability at this level is achieved with the use of fragment and vertex shaders. | With the recent advances in graphics cards, new features have been added to allow for increased flexibility in the rendering pipeline at the vertex and fragment level. Programmability at this level is achieved with the use of fragment and vertex shaders. | ||
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Shaders are written and stored as plain text files, which can be uploaded (as strings) and executed on the GPU (processor of the graphics card). | Shaders are written and stored as plain text files, which can be uploaded (as strings) and executed on the GPU (processor of the graphics card). | ||
= What is a Shader = | = What is a Shader = | ||