   Texturing a non rectangular quad
  Hi All,When I simply try to apply a texture on a non rectangular quad, the image is distort, in a non natural manner. Further more, when viewing in differnt angles, the texture simply "flips" in some areas.Is there any simple way fix this strange behaviour?thanks in advance,Vince   
  I guess what you are calling flip is a change in the tessellation. To avoid that you need to draw two triangles instead of one quad.if you don't want distortion, one way is to make the grid finer: instead of a quad (which is a 1x1 grid), draw a nxn grid. Remember to draw triangles and not quad to avoid the flip.   ;  what u see is normal, youre applying a quad onto something that is not a quad, it doesnt work, just like trying to wrap a quad texture around a spherehttps://developer.sonyericsson.com/site/global/techsupport/tipstrickscode/java/p_java_0801.jsphttp://www.opengl.org/resources/code/samples/mjktips/projtex/distortion.txthttp://www.r3.nu/~cass/qcoord/   ;  Thanks for the replies!   