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Key: VWR-6460
Type: Bug Bug
Status: Closed Closed
Resolution: Misfiled
Priority: Normal Normal
Assignee: Unassigned
Reporter: Moon Metty
Votes: 0
Watchers: 1
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1. Second Life Viewer - VWR

UV-mapping error in sculpties viewed with lower LOD.

Created: 12/Apr/08 11:59 AM   Updated: 30/Apr/08 09:50 AM
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Component/s: Graphics
Affects Version/s: 1.20 Release Candidate
Fix Version/s: None

File Attachments: 1. File cilinder 32x32 0-248.tga (3 kB)
2. File colored checker grid.tga (768 kB)
3. File flat square plane sculptie 32x32.tga (3 kB)
4. File SQ01 32x32 0-248.tga (3 kB)
5. File SQ02 32x32 0-255.tga (3 kB)
6. File SQ03 64x64 odd-even-equal 0-248.tga (12 kB)
7. File SQ04 64x64 odd-even-equal 0-255.tga (12 kB)
8. File SQ05 64x64 sequential 0-252.tga (12 kB)
9. File SQ06 64x64 sequential 0-255.tga (12 kB)
10. File SQ07 64x64 sequential 0-248-last lines equal.tga (12 kB)
11. File SQ08 64x64 odd-even-equal 0-248 white-pixels.tga (12 kB)
12. File SQ09 64x64 odd-even-equal 0-248 last line raised Z.tga (12 kB)
13. File square 32x32 0-248.tga (3 kB)
14. File square 32x32 0-255.tga (3 kB)
15. File square 64x64 odd-even-equal 0-248.tga (12 kB)
16. File square 64x64 odd-even-equal 0-255.tga (12 kB)
17. File square 64x64 sequential 0-252.tga (12 kB)
18. File square 64x64 sequential 0-255.tga (12 kB)

Image Attachments:

1. high LOD cillinder.jpg
(37 kB)

2. high LOD screenshot.jpg
(33 kB)

3. low LOD cillinder.jpg
(30 kB)

4. low LOD.jpg
(24 kB)
Environment:
CPU: Intel Core 2 Series Processor (2401 MHz)
Memory: 2048 MB
OS Version: Microsoft Windows XP Service Pack 2 (Build 2600)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce 7600 GS/PCI/SSE2
OpenGL Version: 2.0.3
LLMozLib Version: [LLMediaImplLLMozLib] - 2.01.14372 (Mozilla GRE version 1.8.1.13_0000000000)
Issue Links:
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 Description  « Hide
Software:
Second Life 1.20.0 (84247) Apr 7 2008 11:05:12 (Second Life Release)
Second Life Server 1.21.0.84509

Source material:
-a flat square sculpted texture of at least 32x32 resolution.
-a checkered texture with 32x32 fields. 3ca90771-14dd-4a56-61f0-7b207ab4bc83
-stitching type: plane.

When we view the sculpted object up close we see the top-row and right-column missing.
This can be expected, as the 32x32 points of the sculpt-texture enclose 31x31 fields.
Because we never work with 31x31 based textures, the 32nd row and column will always fall off the object.
So far so good.

Now we zoom out until the LOD changes. The top two rows of the checkered grid are now visible, compressed as one. The same goes for the two columns at the right.

To fix it, stretch the UV-mapping of the last row and column, so the same portion of the texture falls off the object, when viewing in low-LOD.



 All   Comments   Change History      Sort Order: Ascending order - Click to sort in descending order
Moon Metty made changes - 15/Apr/08 01:28 AM
Field Original Value New Value
Attachment square 32x32 0-248.tga [ 16104 ]
Attachment square 64x64 odd-even-equal 0-248.tga [ 16105 ]
Attachment square 64x64 sequential 0-252.tga [ 16106 ]
Moon Metty made changes - 15/Apr/08 01:31 AM
Attachment square 32x32 0-255.tga [ 16107 ]
Attachment square 64x64 odd-even-equal 0-255.tga [ 16108 ]
Attachment square 64x64 sequential 0-255.tga [ 16109 ]
Moon Metty made changes - 15/Apr/08 01:32 AM
Attachment cilinder 32x32 0-248.tga [ 16110 ]
Moon Metty made changes - 15/Apr/08 08:01 PM
Attachment low LOD cillinder.jpg [ 16135 ]
Moon Metty made changes - 15/Apr/08 08:02 PM
Attachment high LOD cillinder.jpg [ 16136 ]
Moon Metty made changes - 15/Apr/08 08:04 PM
Attachment low LOD cillinder.jpg [ 16135 ]
Moon Metty made changes - 15/Apr/08 08:04 PM
Attachment low LOD cillinder.jpg [ 16137 ]
Moon Metty made changes - 15/Apr/08 08:33 PM
Affects Version/s 1.20 Release Candidate [ 10300 ]
Description Software:
Second Life 1.20.0 (84247) Apr 7 2008 11:05:12 (Second Life Release)
Second Life Server 1.21.0.84509

Source material:
-a flat square sculpted texture of at least 32x32 resolution.
-a checkered texture with 32x32 fields. 3ca90771-14dd-4a56-61f0-7b207ab4bc83
-stitching type: plane.

When we view the sculpted object up close we see the top-row and right-column missing.
This can be expected, as the 32x32 points of the sculpt-texture enclose 31x31 fields.
Because we never work with 31x31 based textures, the 32nd row and column will always fall off the object.
So far so good.

Now we zoom out until the LOD changes. The top two rows of the checkered grid are now visible, compressed as one. The same goes for the two columns at the right.

To fix it, stretch the UV-mapping of the last row and column, so the same portion of the texture falls off the object, when viewing in low-LOD.

(I did not try other stitching types)
(32x32 and 64x64 sculpts give the same result)
Software:
Second Life 1.20.0 (84247) Apr 7 2008 11:05:12 (Second Life Release)
Second Life Server 1.21.0.84509

Source material:
-a flat square sculpted texture of at least 32x32 resolution.
-a checkered texture with 32x32 fields. 3ca90771-14dd-4a56-61f0-7b207ab4bc83
-stitching type: plane.

When we view the sculpted object up close we see the top-row and right-column missing.
This can be expected, as the 32x32 points of the sculpt-texture enclose 31x31 fields.
Because we never work with 31x31 based textures, the 32nd row and column will always fall off the object.
So far so good.

Now we zoom out until the LOD changes. The top two rows of the checkered grid are now visible, compressed as one. The same goes for the two columns at the right.

To fix it, stretch the UV-mapping of the last row and column, so the same portion of the texture falls off the object, when viewing in low-LOD.
Affects Version/s Other (please specify in issue description) [ 10131 ]
Moon Metty made changes - 24/Apr/08 01:32 PM
Attachment SQ01 32x32 0-248.tga [ 16359 ]
Attachment SQ02 32x32 0-255.tga [ 16360 ]
Attachment SQ03 64x64 odd-even-equal 0-248.tga [ 16361 ]
Moon Metty made changes - 24/Apr/08 01:32 PM
Attachment SQ05 64x64 sequential 0-252.tga [ 16363 ]
Attachment SQ04 64x64 odd-even-equal 0-255.tga [ 16362 ]
Attachment SQ06 64x64 sequential 0-255.tga [ 16364 ]
Moon Metty made changes - 24/Apr/08 02:17 PM
Attachment colored checker grid.tga [ 16368 ]
Moon Metty made changes - 24/Apr/08 02:26 PM
Link This issue Relates to VWR-2404 [ VWR-2404 ]
Moon Metty made changes - 30/Apr/08 09:50 AM
Resolution Misfiled [ 6 ]
Status Open [ 1 ] Closed [ 6 ]
Sue Linden made changes - 13/Nov/08 11:49 AM
Workflow jira-2007-12-22a [ 54728 ] jira-2008-11-14 [ 77855 ]
Sue Linden made changes - 13/Nov/08 06:57 PM
Workflow jira-2008-11-14 [ 77855 ] jira-2008-11-14a [ 140566 ]