» Multi-Screen Homography with Soft Edges
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Multi-Screen Homography with Soft Edges

module homography multiscreen soft edge
Credits: catweasel, vvvvgroup


Just cleaned up a module for adjusting multiple screens with homography and softedge blending, hope you find it useful.
Open the help patch to see how it works



01.05.13 [18:51 UTC] by catweasel | 2072 downloads
Multi-Screen Homography with Soft Edges

Noir 01/05/2013 - 19:14

thanks for sharing

screamer 01/05/2013 - 19:51

fantastic, and really useful, well done, thanks for sharing!!

colorsound 02/05/2013 - 10:51


sunep 02/05/2013 - 13:02

Nice one cat, I have patched similar things from time to time, but nothing working this nice! good work!

vjc4 02/05/2013 - 15:18

love the idea of moving the points with the keys
i would like to do the same with a 3x3 grid for more precise mapping
i will take this patch as a example

i would like to add a feature to control the amount of blending
did you test it already with beamers ? if i put the 3 grids in blend,add it over exposed in the intersection area. Are you sure its well calculated?

great patch anyway! thnks for sharing

sunep 02/05/2013 - 18:43

@vjc4 you can adjust the blend by holding down B and use the arrowkeys, left and right to adjust and + and - to select which parameter you want to adjust and it is even displayed at the center of each screen.

catweasel 17/05/2013 - 14:00

I should point out that you can also hold shift to speed up the movements for quick rough positioning, not sure if I mentioned that in the help patch?
@vjc4 the soft edge is done via the vvvv default softedge patch, its worked for me, is it the black level that is the issue, there is not any black level compensation atm...

newemka 04/07/2015 - 16:16

Is there a DX11 version somewhere?

|edit| i've just manage to build a DX11 "dirty" solution by using MultiScreen (DX11) from dx11-modules-and-shaders-addition-ii))

I hope I will have time to make it clean and release it one day.

|edit2| well after 2 hours trying to use my version, i had to consider using hard edges... my version is a nightmare to use

parabola 06/07/2015 - 16:25

sooooo awesome...

metrowave 09/07/2015 - 00:24

Very useful, big Thanks.

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