[Avid-L2] Re: Explaining Bias on a Feathered Edge?

 

Just played with this a bit.  Drawing a simple square shape with a bias of 50 and a feathering of 10 on both H and V the softness (feathering) is centered on the shape edge with an equal width of softening happening inside and outside the actual shape line.  A bias of 100 and the softness transition happens inside the shape border and is completely gone at the actual shape border.  A bias of 0 and the softness transition happens beginning at the shape border and completes outside the border.  It seems the overall width of the softness transition (like a soft switcher wipe) is maximum with bias of 50.  At the other extremes the transition seems to happen with less overall width of the transition but it's somewhat difficult to be totally accurate with the soft edge.  On the program monitor is seems to be softest at a bias of 50.

---In avid-l2@yahoogroups.com, <tcurren@...> wrote :

As I understand it, bias adjusts where the center point of the feather happens. It starts centered, but moving it moves the feathering off in one direction or the other which gives you a harder edge on one side and more feathering on the other.

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Posted by: bigfish@pacbell.net

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