Graphics Reference
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point on a surface, so that a shader could color the surface in ways that
communicate that pressure. Implement another visualization of the pres-
sure besides the one(s) that we described in the text.
3. While OpenGL is a fully general graphics API that can be used by almost
everyone who needs graphics, you can write shaders that only use the
capabilities that you need. For example, the texture mapping functions in
fixed-function OpenGL can work with a very large number of input for-
mats for texture maps. Review the standard OpenGL texture map func-
tions and list all the possible options for texture map inputs, and identify
the set of operations that you would yourself expect to use.
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