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ilOverlayImage

 

The ilOverlayImage function copies the image named by Src onto the current bound image. XCoord, YCoord and ZCoord are allowed to be any number, even negative numbers, for if you want to start copying Src in the middle of it to the current image's left side. If the image named by Src has alpha components, then blending will occur, instead of just a simple overlay.

 

ILboolean ilOverlayImage(
  ILuint Src, ILuint XCoord, ILuint YCoord, ILuint ZCoord );


Parameters

 
Src
The image to copy.
XCoord
The starting x position of the current image to copy Src to.
YCoord
The starting y position of the current image to copy Src to.
ZCoord
The starting z position of the current image to copy Src to.


Errors

 
IL_ILLEGAL_OPERATION
The operation attempted is not allowable in the current state. The function returns with no ill side effects. Generally there is currently no image bound or it has been deleted via ilDeleteImages. You should use ilGenImages and ilBindImage before calling the function.

See Also

 
ilBindImage, ilGenImages,