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7 Cards in this Set
- Front
- Back
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gl_Position?
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Vertex shader mandatory output variable.
Represent a transformed position of the current vertex. (for example, the vertex in the camera frame) |
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gl_FragColor
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Fragment shader special output variable. Either gl_FragColor or gl_FragData must be written
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gl_Vertex
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Vertex coordinates (x,y,z,w) in the global frame.
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gl_MultiTexCoordX?
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Vertex shader input variable. Coordinates of the texture unit X
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gl_TexCoord[N] ?
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Interpolated texture coordinates of texture N for current pixel (I'm not sure)
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uniform variable?
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shader read only input variable which value is set in the openGL program.
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sampler1D,2D,3D?
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qualifier to declare a texture handler.
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