In the Articles and Resources here on GameDev there are some excellent articles about 3D programming. Texture mapping is covered in some of them.

The gist of texturemapping is as follows:

Each vertex making up a polygon contains a texture coordinate. As you render the polygon you interpolate the U,V (texture X, texture Y) coordinates across each scanline, and draw the color from the texture at the interpolated coordinate.

If you''ve ever written a software render that uses Z-Buffers or does Gourad Shading you should be able to write a texture mapper in a few minutes.

Good luck,
Will

front999,

I''m closing this thread, since you started an identical thread over in the Math & Physics forum (which is a more appropriate place for this question).

Please note that double-posting an identical thread to multiple forums is considered to be inappropriate on most internet sites.



Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.