Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 5,446  Location: Belgium Thanks: 311 times
Was thanked: 1006 time(s) in 830 post(s)
|
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
|
|
|
|
|
|
Rank: Administration
Groups: Administrators
Joined: 1/13/2010(UTC) Posts: 5,263  Location: Gold Coast, Australia Was thanked: 4610 time(s) in 1594 post(s)
|
|
 4 users thanked admin for this useful post.
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 5,446 Location: Belgium Thanks: 311 times
Was thanked: 1006 time(s) in 830 post(s)
|
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
|
|
|
|
|
|
Rank: Administration
Groups: Administrators
Joined: 1/13/2010(UTC) Posts: 5,263 Location: Gold Coast, Australia Was thanked: 4610 time(s) in 1594 post(s)
|
If you can provide a screenshot it will make it easier to see what might be happening.
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 5,446 Location: Belgium Thanks: 311 times
Was thanked: 1006 time(s) in 830 post(s)
|
sending clip by email as it becomes most obvious (panning)
|
|
|
|
|
|
Rank: Administration
Groups: Administrators
Joined: 1/13/2010(UTC) Posts: 5,263 Location: Gold Coast, Australia Was thanked: 4610 time(s) in 1594 post(s)
|
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.
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 5,446 Location: Belgium Thanks: 311 times
Was thanked: 1006 time(s) in 830 post(s)
|
Thanks Martin and I understand ... just dont seem to manage it or maybe gradients aren't correct on PS ;-)
|
|
|
|
|
|
Rank: Administration
Groups: Administrators
Joined: 1/13/2010(UTC) Posts: 5,263 Location: Gold Coast, Australia Was thanked: 4610 time(s) in 1594 post(s)
|
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
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 5,446 Location: Belgium Thanks: 311 times
Was thanked: 1006 time(s) in 830 post(s)
|
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 :-)
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 2/2/2018(UTC)
Posts: 13
Location: Foz do Iguaçu
Thanks: 5 times
|
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 !!!
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 7/18/2019(UTC) Posts: 12  Location: West Africa Thanks: 4 times
|
Originally Posted by: admin  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 Hi there Martin, Did not want to create a new thread so piggybacking this one. Thanks for the UV sample but I have this strange issue that after I resize it for my screens, when I drop videos into the inputs in vMIX, the images are heavily pixelatted? Any ideas why this happens? I have tried the sample sets that cam with the software but the videos work fine in them. Cheers Mark
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 12/27/2012(UTC) Posts: 5,446 Location: Belgium Thanks: 311 times
Was thanked: 1006 time(s) in 830 post(s)
|
Originally Posted by: LMTunkara
Did not want to create a new thread so piggybacking this one.
Thanks for the UV sample but I have this strange issue that after I resize it for my screens, when I drop videos into the inputs in vMIX, the images are heavily pixelatted? Any ideas why this happens? I have tried the sample sets that cam with the software but the videos work fine in them.
Should have, it's 7 years old ! more recent: https://forums.vmix.com/posts/m87962-UVmap-from-scratch#post87962 shouldhelp understand why just edit and saving didn't work out
|
1 user thanked doggy for this useful post.
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 7/28/2019(UTC) Posts: 351  Location: Santa Rosa Thanks: 1 times
Was thanked: 53 time(s) in 51 post(s)
|
If you see a pixelated image, make sure you save as png (File>Save as> PNG) in Photoshop, don't use save for the web. And double check that you are working in a 16bit/channel mode (Image>Mode>16 bits).
|
1 user thanked Vince Beck for this useful post.
|
|
|
|
Rank: Member
Groups: Registered
Joined: 7/18/2019(UTC) Posts: 12 Location: West Africa Thanks: 4 times
|
Thanks for the assistance guys. I followed that tutorial and made a 16bit UV gradient in GIMP but for some (frustrating) reason, any video I load into my screens are pixellated when I zoom in! The background image I'm using is 4K so I wonder if that has anything to do with it? I think my config is fine (below) I'm obviously doing something wrong but can't quite work it out. Cheers  Quote:<virtualSet>
<input name="Background" x="0" y="0" zoomX="1" zoomY="1" rotateX="0" rotateY="0" rotateZ="0" dynamic="True">background.png</input>
<input name="Main Screen" x="0" y="0" zoomX="1" zoomY="1" rotateX="0" rotateY="0" rotateZ="0" dynamic="True" uvmap="screen_main.png">blank.png</input>
<input name="Screen Right" x="0" y="0" zoomX="1" zoomY="1" rotateX="0" rotateY="0" rotateZ="0" dynamic="True" uvmap="screen_right.png">blank.png</input>
<zoom name="Full" x="0" y="0" zoomX="1" zoomY="1" rotateX="0" rotateY="0" rotateZ="0" />
<zoom name="Custom" x="0" y="0" zoomX="1" zoomY="1" rotateX="0" rotateY="0" rotateZ="0" />
</virtualSet>
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 5/12/2021(UTC) Posts: 26 
|
You have to double check on your UVmap file if it's at 64 bit in total. You have to save your PNG in 16bits/channel which is 64bit in total.
|
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
Important Information:
The vMix Forums uses cookies. By continuing to browse this site, you are agreeing to our use of cookies.
More Details
Close
