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General / Diffuse Texture isn't "seamless" after Photoshop adjustments...?
« on: April 18, 2024, 04:32:00 AM »
Photogrammetry (3D Scanning) Diffuse Texture isn't "seamless" after Photoshop adjustments (Shadows/Highlights) - WHY ?
Hello
Im doing a scan of smaller object (orange (fruit); but it doesnt matter, could be anything and the problem happened on and off previously with various scanned models). Im doing the diffuse texture in Agisoft Metashape from the original photos that were used for point cloud, mesh etc. generation ( i dont use another special, separate set of photos (adjusted) just for diffuse texture generation (as is often the case/recommended in a more proper photogrammetry workflow)).
I just use the Photoshop feature/function "Shadows/Highlights" (Image - Adjustments - Shadows/Highlights) to "somewhat" remove highlights and shadows from the Diffuse texture.
(I use indoor scanning setup on a rotating lazy susan with 2 softboxes for lighting so the lighting is "quite" (well... somewhat) even to begin with)
It usually works ok for me (for my "quality level demand"), but SOMETIMES, as happened currently the (in photoshop) adjusted texture (if applied on the 3d object (in 3ds max)) suddenly gives/shows seams among the UV unwraped islands, picture:
https://prnt.sc/PVMLKlufpM0G
Original Diffuse texture (UNaltered in photshop in any way) doesnt have the seams:
https://prnt.sc/pMKC5ZcR6yKo
I dont know... I vaguely remember that it might have happened before sometimes (maybe..?) but usually i dont see any problems... Now i do... My understanding is that the shadows/highlights function in Photoshop should work on the whole image "equally" so no "showing seams" problem should occur... Its like if your original diffuse texture doesnt show seams, and you for example, whatever... brighten, darken, add contrast, add color tint, change color balance etc. whatever you do with the texture in Photoshop, if there were no seams in the original diffuse texture, there should be NO seams visible even on the new adjusted one...? Right..? And it doesnt show AFAIK with brightening, darkening, changing color balance whatever... BUT for some reason it shows (suddenly?) with Shadows Hightlights...? Why is that?
Again i think i MIGHT have gotten this problem MAYBE before but it was NOT often, i cannot even remember it really... But suddenly it shows with the newest model i work on... ( i didnt play with photogrammetry for months really)?
Hello
Im doing a scan of smaller object (orange (fruit); but it doesnt matter, could be anything and the problem happened on and off previously with various scanned models). Im doing the diffuse texture in Agisoft Metashape from the original photos that were used for point cloud, mesh etc. generation ( i dont use another special, separate set of photos (adjusted) just for diffuse texture generation (as is often the case/recommended in a more proper photogrammetry workflow)).
I just use the Photoshop feature/function "Shadows/Highlights" (Image - Adjustments - Shadows/Highlights) to "somewhat" remove highlights and shadows from the Diffuse texture.
(I use indoor scanning setup on a rotating lazy susan with 2 softboxes for lighting so the lighting is "quite" (well... somewhat) even to begin with)
It usually works ok for me (for my "quality level demand"), but SOMETIMES, as happened currently the (in photoshop) adjusted texture (if applied on the 3d object (in 3ds max)) suddenly gives/shows seams among the UV unwraped islands, picture:
https://prnt.sc/PVMLKlufpM0G
Original Diffuse texture (UNaltered in photshop in any way) doesnt have the seams:
https://prnt.sc/pMKC5ZcR6yKo
I dont know... I vaguely remember that it might have happened before sometimes (maybe..?) but usually i dont see any problems... Now i do... My understanding is that the shadows/highlights function in Photoshop should work on the whole image "equally" so no "showing seams" problem should occur... Its like if your original diffuse texture doesnt show seams, and you for example, whatever... brighten, darken, add contrast, add color tint, change color balance etc. whatever you do with the texture in Photoshop, if there were no seams in the original diffuse texture, there should be NO seams visible even on the new adjusted one...? Right..? And it doesnt show AFAIK with brightening, darkening, changing color balance whatever... BUT for some reason it shows (suddenly?) with Shadows Hightlights...? Why is that?
Again i think i MIGHT have gotten this problem MAYBE before but it was NOT often, i cannot even remember it really... But suddenly it shows with the newest model i work on... ( i didnt play with photogrammetry for months really)?