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AS Set Grain

This is used to get the grain.  The grain affects how fast an effect is painted. The lower the Grain, the slower the effects paint and you can see the effect "jump". It paints pixel by pixel. So if you set the Grain to be 50 (which would be high), it jumps across the screen, therefore not being very smooth. But if you set the Grain to be 1, you see that it paints smoothly and slowly.  This setting works in conjunction with Delay.