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Why is Soft Edge applied to top and bottom, not just side?

Posted: Mon Dec 23, 2019 11:06
by gpvillamil
I am doing a fairly simple mapping project, four projectors across a wall.

I am using Soft Edge to blend the edges (there is a lot of overlap), and am finding that the blend area on the projectors on the end is not just the side edge, but also the bottom.

See the attached screenshots. I would like the edge blend to look like Slice 3, not Slice 1.

Note the excessive shading along the bottom edge.
Screen Shot 2019-12-23 at 2.00.56 AM.png
Screen Shot 2019-12-23 at 2.01.02 AM.png
This looks OK.
Screen Shot 2019-12-23 at 2.03.02 AM.png

Re: Why is Soft Edge applied to top and bottom, not just side?

Posted: Sat Dec 28, 2019 12:48
by Zoltán
Could you attach your screen setup preset?

Re: Why is Soft Edge applied to top and bottom, not just side?

Posted: Sun Dec 29, 2019 01:18
by gpvillamil
Presets attached

Re: Why is Soft Edge applied to top and bottom, not just side?

Posted: Mon Dec 30, 2019 10:30
by Zoltán
Looks like your slice3 is overlapping with both slice1 and 2.
slice overlap.gif
slice overlap.gif (2.24 MiB) Viewed 769 times
That could be the reason why the soft edge gets confused on slice1, though I don't see the bottom edge when I load your preset.