Perspective warp

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VJzoo
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Perspective warp

Post by VJzoo » Thu Aug 23, 2018 16:18

We got Arena as we wanted to use the integrated mapping tools but we keep running into issues with how it does perspective warping :(

We are even finding making circles circular and squares square on a building or surface frustrating.

We have tried the warping function and moving the points but it always ends up in content stretching/compacting in and out of shape as moves across the surface as you cant average the change over a large area.

We used to use MAPIO and that had a function to evenly compact across the output
MapIOexample.jpg
Are we missing something in Arena that does this? I know it does auto perspective warping but that only seems to work if you are projecting onto an upright flat surface, not curved walls, floor projection and other odd shapes.
Jas
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http://vjzoo.com
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Zoltán
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Re: Perspective warp

Post by Zoltán » Fri Aug 24, 2018 11:18

Looks like you are using the Linear warping points instead of the perspective points
https://resolume.com/support/en/output- ... on#warping

You can apply perspective warping by changing the four large corner points of your slice,
Linear warping by changing the four small corner points of your slice.
Theatre sound engineer, photographer, programmer, aka ravensc.
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VJzoo
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Re: Perspective warp

Post by VJzoo » Fri Aug 24, 2018 11:33

That's frustrating, both those modes dont help with anything that isn't a relatively flat surface.
Jas
(the dyslexic VJzoo)

http://vjzoo.com
~ quite nice visuals ~

Zoltán
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Re: Perspective warp

Post by Zoltán » Fri Aug 24, 2018 12:12

What's the surface you are trying to project on?
Have you tried to set the warp points to bezier mode?
Or adding subdivisions?
Képernyőfotó 2018-08-24 - 13.10.48.png
Képernyőfotó 2018-08-24 - 13.16.53.png
If you could share some pictures of your objects we could better understand what you are trying to do.
Theatre sound engineer, photographer, programmer, aka ravensc.
Control Your show with ”Enter” - multiple Resolume servers at once - SMPTE/MTC column launch
try for free: http://programs.palffyzoltan.hu
VJ footage: https://goo.gl/58oHy7

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VJzoo
Is seriously in love with Resolume. Met the parents and everything
Posts: 254
Joined: Tue Oct 12, 2004 12:41
Location: Perth, Australia

Re: Perspective warp

Post by VJzoo » Fri Aug 24, 2018 13:41

We tried subdivisions but found that content went out of shape as the changes were not gradual enough.

I haven't tried Beziers without subdivisions and didn't think of pulling them out of shape to compact the content as it moved across the division lines.

Will give that a shot and see how we go, thanks for the help :)
Jas
(the dyslexic VJzoo)

http://vjzoo.com
~ quite nice visuals ~

hdj912
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Re: Perspective warp

Post by hdj912 » Sun Dec 09, 2018 21:53

Hi VJzoo, just curious if you have found a solution on this?

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VJzoo
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Re: Perspective warp

Post by VJzoo » Mon Dec 10, 2018 09:48

The beziers did do the trick without subdivisions but it can be a little fiddly.
Jas
(the dyslexic VJzoo)

http://vjzoo.com
~ quite nice visuals ~

hdj912
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Re: Perspective warp

Post by hdj912 » Wed Jan 02, 2019 22:20

Thanks, i will try that because we run into the same issue when edge blending 5 projectors in a cylinder of 5m wide.

Kristey17
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Re: Perspective warp

Post by Kristey17 » Fri Sep 13, 2019 08:00

I have a problem with a projection.
I have a angles projection and after I read this link: https://resolume.com/support/en/output-transformation I found the “perspective warp” but e don’t understand how I can activate the perspective warp.
In my resolume I just see “linear” and “bezel”.

Zoltán
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Re: Perspective warp

Post by Zoltán » Mon Sep 16, 2019 10:41

Kristey17 wrote:
Fri Sep 13, 2019 08:00
transformation I found the “perspective warp” but e don’t understand how I can activate the perspective warp.
You apply perspective warping by changing the four large corner points of your slice.

Linear warping is applied by the four smaller corner points inside the perspective warper points.
These points work the same way as their bigger brothers, except they do not adjust for perspective.
Theatre sound engineer, photographer, programmer, aka ravensc.
Control Your show with ”Enter” - multiple Resolume servers at once - SMPTE/MTC column launch
try for free: http://programs.palffyzoltan.hu
VJ footage: https://goo.gl/58oHy7

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