UV: Issues with pinned island support in packing #108037

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opened 2023-05-18 09:25:03 +02:00 by Sun Kim · 2 comments

Sun Kim commented

2023-05-18 09:25:03 +02:00

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System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.61

Blender Version
Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-05-17 23:34, hash: 9fbadc98cd64
Worked: n/a

Pinned island support in packing was introduced in 5abb3c96cf

Short description of error
In some conditions using pin information results in undesirable out-of-bound (?) packing.

Use locked scale on after scaling UV -> out of bounds UV

Use with Merge Overlapped

When unpinned islands are overlapped with pinned islands sometimes they follow pinned ones sometimes they don't. Sometimes end result is out-of-bound.

In some case locked position is not respected

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.61 **Blender Version** Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-05-17 23:34, hash: `9fbadc98cd64` Worked: n/a Pinned island support in packing was introduced in 5abb3c96cf **Short description of error** In some conditions using pin information results in undesirable out-of-bound (?) packing. 1. Use `locked scale` on after scaling UV -> out of bounds UV <video src="/attachments/27fab8ec-cbd3-4208-a22a-80c5641c4b61" controls></video> 2. Use with Merge Overlapped - When unpinned islands are overlapped with pinned islands sometimes they follow pinned ones sometimes they don't. Sometimes end result is out-of-bound. <video src="/attachments/1ae54d2a-c28d-4bc8-af1d-ca878ba0208f" controls></video> 3. In some case `locked position` is not respected <video src="/attachments/9008a561-770a-4a7a-b497-339f777bbb7e" controls></video>

UVPinnedIslandPackingLockedPositionIgnored.mp4

3.0 MiB

UVPinnedIslandPackingOverlap.mp4

2.5 MiB

UVPinnedIslandPackingLockedScale.mp4

1.8 MiB

Sun Kim added the

labels 2023-05-18 09:25:03 +02:00

Iliya Katushenock added the

labels 2023-05-18 15:01:18 +02:00

Germano Cavalcante commented

2023-05-18 17:26:50 +02:00

Member

I can confirm the first issue using the file attached below.

I haven't tested the others, but they seem related. (Note that the Triaging_Playbook discourages reporting multiple bugs in the same report, but as these issues may have the same source, it seems OK)

Tagging here as well @Chris_Blackbourn since commit 5abb3c96cf by him was mentioned.

I can confirm the first issue using the file attached below. I haven't tested the others, but they seem related. (Note that the [Triaging_Playbook](https://wiki.blender.org/wiki/Process/Bug_Reports/Triaging_Playbook) discourages reporting multiple bugs in the same report, but as these issues may have the same source, it seems OK) Tagging here as well @Chris_Blackbourn since commit 5abb3c96cf by him was mentioned.

pack_islands_w_locked_scale__bug.blend

878 KiB

Germano Cavalcante added

and removed

labels 2023-05-18 17:27:13 +02:00

Chris Blackbourn self-assigned this 2023-05-18 23:01:30 +02:00

Chris Blackbourn referenced a pull request that will close this issue

2023-05-19 03:36:05 +02:00

Fix #108037: UV packing problems with pinned islands #108063

Chris Blackbourn referenced this issue from a commit

2023-05-22 05:56:15 +02:00

UV: Fix overlap problem during uv packing with scale locked islands

Chris Blackbourn referenced this issue from a commit

2023-05-22 05:56:15 +02:00

UV: Fix uv packing problem with rotate and scale line-search

Chris Blackbourn referenced this issue from a commit

2023-05-22 05:56:15 +02:00

UV: Use correct uv packing method when all/none islands are pinned.

Chris Blackbourn commented

2023-05-22 05:56:46 +02:00

Member

Fixed as :

Fixed as : 1. 47cbeabb1182fbd964d8cbefb04d30a2ced6efc4 2. de4f456ea2e4ab6290f2446bf2d179a12bc6a989 3. 96101a66fc83dc58c61b86af1d4d021036626b9e

Chris Blackbourn closed this issue

2023-05-22 05:56:49 +02:00

Blender Bot added

and removed

labels 2023-05-22 05:57:14 +02:00

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