WoW:API Texture SetTexCoord: Difference between revisions

WoW:API Texture SetTexCoord (source)

285 bytes added , 14 September 2007

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Anonymous user

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 == Note ==
-:The function cut a sub-region,use the new TopLeftPoint is (left,top),new BottomRight is (right,bottom),so you can use the function to rotate the texture or sub-region.  The more complex 8-argument form allows for arbitrary affine transformations, see [[SetTexCoord Transformations]] for details.
+:The function cuts a sub-region out of the texture to display ingame.
+:*Unless you want to do rotations, use the ''(left,right,top,bottom)'' notation.
+:*The more complex 8-argument form allows for arbitrary affine transformations, see [[SetTexCoord Transformations]] for details.<BR>Basically the four points you specify still have to form a rectangle, but you can rotate and place it more freely.<BR>Experience with matrices is recommended since they can help you find the final coordinates of your points.
+:The example below cuts out the lower left quarter of the texture file.
 == Example ==
   getglobal("MyAddOnTexture" .. id):SetTexCoord(0, 0.5, 0.5, 1);