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		Texture Mapping Polygons Page 4 of 5 < Previous Jump to Page: 1 | 2 | 3 | 4 | 5 Next > A Texturing Secret Here's a cool trick. Set all the texcoords like this and watch how the texture animates across the polygon. int r = rotate; glBegin(GL_POLYGON); glTexCoord3f( r/100, r/100, 0); glVertex3f(-5, 5, 0); glTexCoord3f( r/100+1, r/100, 0); glVertex3f( 5, 5, 0); glTexCoord3f( r/100+1, r/100+1, 0); glVertex3f( 5, -5, 0); glTexCoord3f( r/100, r/100+1, 0); glVertex3f(-5, -5, 0); glEnd(); This of course only works if you have a "rotate" variable, like we declared in the Drawing Triangles tutorial. Note how the coords are set up similarly to the previous code. All the coords are the same, except we added r/100 to each coordinate. The ones that were 0 are r/100, and the ones that were 1 are r/100+1. That way it still maps the coords to the right corners. Texture Mapping Polygons Page 4 of 5 < Previous Jump to Page: 1 | 2 | 3 | 4 | 5 Next >

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