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jcondon

glRotate

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Does anyone know how to change the point that glRotatef() rotates about (the default being (0.0f,0.0f,0.0f))? -James

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glTranslate() before the glRotate() call effectively moves the origin to the specified coordinates.

You can also do the same thing (glTranslate and/or glRotate) using Matrices (glMultMatrix or glLoadMatrix depending on what you are doing).

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Quote:

Does anyone know how to change the point that glRotatef() rotates about (the default being (0.0f,0.0f,0.0f))?


Here are a few articles on gamedev. They explain the math behind whats going on:

http://www.gamedev.net/reference/articles/article403.asp
http://www.gamedev.net/reference/articles/article402.asp
http://www.gamedev.net/reference/articles/article399.asp
http://www.gamedev.net/reference/articles/article1827.asp

and some more advanced stuff:

http://www.gamedev.net/reference/articles/article853.asp
http://www.gamedev.net/reference/articles/article398.asp
http://www.gamedev.net/reference/articles/article716.asp

and the page where i got these links, with tons more stuff that you probably wont need:

http://www.gamedev.net/reference/list.asp?categoryid=28

Cheers,
- llvllatrix

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