TexCoord4d-what does the q coord. do?

I was wondering if the q-texturecoordinate does something other than just dividing the s,t and r coordinates???

That’s all it does. However, that is significant, and is useful in certain situations (e.g. fitting a texture map to a trapezoid without requiring any vertex to have more than one texture co-ordinate, i.e. texture projection).

[This message has been edited by DFrey (edited 02-14-2001).]

could you be a little more expilcit, how asign the texturecoordinates to a trapezoid by using the q-coord.

hmmm i think i am just an idiot…

See here: http://www.r3.nu/~cass/qcoord/

thx that helped…