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doggy  
#1 Posted : Sunday, June 29, 2014 7:09:46 AM(UTC)
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Please help as I am confused.

Although I found a nice basic UV map that can be resized and/or transformed to be used in a virtual studio I don't manage to create one myself
as I understand it is made up of a red and green layer (gradient) and adding (mode) them together I do visually get the exact same visually as the one I found online that works.
BUT... that one always give a distorted view (vertical lines , horizontally half the size approx basically a total mess

what is the trick please

I did notice that some virtual sets that use UV maps seems to use a different standard one compared to the one used in vMix.

Inquiring minds like to know
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admin  
#2 Posted : Sunday, June 29, 2014 8:06:01 AM(UTC)
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See below:

http://www.vmix.com.au/k...ual-set-specification-10

UV Map PNG files need to be 64bit so the red/green colours can range from 0 to 65535
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thanks 3 users thanked admin for this useful post.
doggy on 6/29/2014(UTC), Thremir on 6/29/2014(UTC), claudeir on 11/30/2018(UTC)
doggy  
#3 Posted : Sunday, June 29, 2014 9:35:34 AM(UTC)
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ok, that works , but my edges (when video is panning are distorded )
Imagine this i where the gamma corrected comes into play , any hints please
Thanks
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admin  
#4 Posted : Sunday, June 29, 2014 9:47:52 AM(UTC)
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If you can provide a screenshot it will make it easier to see what might be happening.
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doggy  
#5 Posted : Sunday, June 29, 2014 10:10:31 AM(UTC)
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sending clip by email as it becomes most obvious (panning)
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admin  
#6 Posted : Sunday, June 29, 2014 10:16:19 PM(UTC)
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There appears to be a problem with your gradients.
They start out 0,1,2,3 etc as they should but then go back to 0 again towards the start.

They need to evenly increment across the entire image for it to look correct.
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doggy  
#7 Posted : Monday, June 30, 2014 12:39:00 PM(UTC)
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Thanks Martin and I understand ... just dont seem to manage it or maybe gradients aren't correct on PS ;-)
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admin  
#8 Posted : Friday, July 4, 2014 4:21:31 AM(UTC)
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Here is a sample set with a HD 64bit UV Map:

http://www.vmix.com.au/download/uvmapsample.zip

You can try importing the image into photoshop, moving it around and saving it out
again to see if photoshop preserves it correctly.

Regards,

Martin
vMix
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doggy  
#9 Posted : Friday, July 4, 2014 4:36:26 AM(UTC)
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Thank you Martin

My problem is not being able to alter a UV map (as I found one online also and see my GoPro lens correction altering I did in this Post

repositioning , changing its shape and what not all works when starting from an example like yours and than saving it

I was trying to make one from scratch . Got close , just the edges ;-)

Tried some free to test virtual sets , just had to replace their uv map with 'ours' and 'translate' the PSD file to the vMix xml :-)
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claudeir  
#10 Posted : Friday, November 30, 2018 1:09:54 PM(UTC)
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Hi friends, thanks so much for your uvmap sample, Im studying that.

Please, could you send some tutorial to teach me how to create a new one with
all size that I can ?

Thanks so much !!!
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