Timeline for How to calculate the total UV area used?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| S Nov 29, 2022 at 8:03 | history | bounty ended | CommunityBot | ||
| S Nov 29, 2022 at 8:03 | history | notice removed | CommunityBot | ||
| Nov 28, 2022 at 6:11 | vote | accept | Greg Zaal | ||
| Nov 25, 2022 at 15:33 | answer | added | Markus von Broady | timeline score: 1 | |
| Nov 25, 2022 at 10:22 | comment | added | Markus von Broady | It seems to me this is an XY problem: if you want consistent scale, you just want to define image dimensions, e.g. define UV dimensions as 0..1 meters. Now you don't need to calculate an area, because you still want to maintain proportions, so all you need to do is to compare an edge length with a loop length. Still, the easiest method to calculate the UV area seems to be triangulating the mesh, and summing up all UV triangles areas… | |
| Nov 25, 2022 at 9:11 | answer | added | Sietse Brouwer | timeline score: 2 | |
| Nov 22, 2022 at 4:43 | comment | added | tetii | If the uv faces overlap, for example uv projection, what result do you want? Is there an exception for such cases? | |
| Nov 21, 2022 at 16:59 | answer | added | Sietse Brouwer | timeline score: 2 | |
| Nov 21, 2022 at 13:50 | history | edited | Greg Zaal | CC BY-SA 4.0 |
added context
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| Nov 21, 2022 at 11:35 | comment | added | Greg Zaal | Exactly, but the UV in practice is not downscaled, this is just an example. Most UVs try to fill all the available area, but there are gaps between the islands that are empty space. I need to calculate what the actual UV area used is, relative to the total area available, in any arbitrary space/mesh. | |
| Nov 21, 2022 at 10:18 | comment | added | Evripidis Lalissidis | So if i understand this correctly you want a formula for the percentage of the Image used by the UV. If your overall image has a bound of 1, and your downscalled UV (1/2) uses 25% this would mean that you have a ratio of 1/4 or am i wrong? 100% = 1 (Full image bound) 1/4 = 25% so wouldn't it be possible to use this formula? meaning if you want 20% 0.2 (20%) = 1/X 1/0.2 = 5 Meaning: if you want 20% of the Image used as a UV you have to divide by 5 | |
| S Nov 21, 2022 at 6:45 | history | bounty started | Greg Zaal | ||
| S Nov 21, 2022 at 6:45 | history | notice added | Greg Zaal | Canonical answer required | |
| Nov 19, 2022 at 15:00 | history | tweeted | twitter.com/StackBlender/status/1593982448970366976 | ||
| Nov 18, 2022 at 6:14 | history | asked | Greg Zaal | CC BY-SA 4.0 |