Rank: Advanced Member
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Joined: 12/27/2012(UTC) Posts: 948  Location: Belgium Thanks: 58 times Was thanked: 164 time(s) in 148 post(s)
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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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Rank: Administration
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Joined: 1/13/2010(UTC) Posts: 4,044  Location: Gold Coast, Australia Was thanked: 2137 time(s) in 977 post(s)
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 3 users thanked admin for this useful post.
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Rank: Advanced Member
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Joined: 12/27/2012(UTC) Posts: 948  Location: Belgium Thanks: 58 times Was thanked: 164 time(s) in 148 post(s)
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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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Rank: Administration
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Joined: 1/13/2010(UTC) Posts: 4,044  Location: Gold Coast, Australia Was thanked: 2137 time(s) in 977 post(s)
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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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Rank: Advanced Member
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Joined: 12/27/2012(UTC) Posts: 948  Location: Belgium Thanks: 58 times Was thanked: 164 time(s) in 148 post(s)
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sending clip by email as it becomes most obvious (panning)
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Rank: Administration
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Joined: 1/13/2010(UTC) Posts: 4,044  Location: Gold Coast, Australia Was thanked: 2137 time(s) in 977 post(s)
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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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Rank: Advanced Member
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Joined: 12/27/2012(UTC) Posts: 948  Location: Belgium Thanks: 58 times Was thanked: 164 time(s) in 148 post(s)
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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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Rank: Administration
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Joined: 1/13/2010(UTC) Posts: 4,044  Location: Gold Coast, Australia Was thanked: 2137 time(s) in 977 post(s)
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Here is a sample set with a HD 64bit UV Map: http://www.vmix.com.au/download/uvmapsample.zipYou 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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Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 948  Location: Belgium Thanks: 58 times Was thanked: 164 time(s) in 148 post(s)
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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 Postrepositioning , 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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Rank: Newbie
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Joined: 2/2/2018(UTC) Posts: 4 Location: Foz do Iguaçu
Thanks: 1 times
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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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