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This is where your image processing will occur (cookMyTile is overriden to do all the image compositing and masking operations available to all generator COPs). Unlike other COPs, you will rarely need to call inputRegion() or inputTile() in a generator.virtual OP_ERROR generateTile(COP2_Context &context, TIL_TileList *tiles);
virtual void getGeneratedBounds(COP2_Context &context,int &bx1, int &by1,int &bx2, int &by2);
Override this if your generator only occupies a certain area of the frame area (or more area that the frame area). You won't need to override the computeImageBounds() method, and it can deal with the mask input (if any) as well.