AdjCanvasPoint
Adjust intensity of the already drawn point
Syntax: AdjCanvasPoint(wi,pint)
wi
walker or spot indexpint
percentage of new intensity. 0 means no change
Notes: This function changes intensity of a point which is already drawn. So, the color component might not be in the correct ratio if the change is big.
Example: AdjCanvasPoint(GetCursor(),-20)
, decrease intensity under cursor to 20 percent
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