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Issue Details (XML | Word | Printable)

Key: VWR-27
Type: Bug Bug
Status: Resolved Resolved
Resolution: Expected Behavior
Priority: Major Major
Assignee: Unassigned
Reporter: Crash Pointe
Votes: 320
Watchers: 68
Operations

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1. Second Life Viewer - VWR

Prim textures overlap strangely when transparent textures applied

Created: 13/Jan/07 06:52 AM   Updated: Tuesday 06:11 PM
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Component/s: Graphics
Affects Version/s: 1.13.1.5, 1.20, 1.18.3 Release Candidate, 1.18.0, 1.18.1.2, 1.18.2.0, 1.18.3.5, 1.18.4 Release Candidate, 1.18.5.3, 1.19.0 Release Candidate, 1.19.0.5, 1.19.1.4, 1.21
Fix Version/s: None

File Attachments: 1. File 2007_11_03_002.bmp (2.25 MB)
2. File AlphaMapVideo.swf (1.38 MB)
3. File BugSnap_001.bmp (5.49 MB)

Image Attachments:

1. 3 sculptie-O-matic robots - transparancy bug.jpg
(48 kB)

2. 4textures.png
(280 kB)

3. Issue - Transparency-render-1.jpg
(311 kB)

4. Issue - Transparency-render-2.jpg
(393 kB)

5. screenshot-1.jpg
(242 kB)

6. screenshot-2.jpg
(29 kB)

7. Skirt + Door = pants.jpg
(366 kB)

8. Snapshot1_001.jpg
(267 kB)

9. Snapshot1_002.jpg
(180 kB)

10. Snapshot1_003.jpg
(175 kB)

11. Snapshot_003.png
(2.26 MB)

12. transparency-rendering-bug.jpg
(111 kB)

13. Z-Order bug example - view from dining room.jpg
(530 kB)
Issue Links:
Duplicate
 
Relates

Last Triaged: 14/Aug/08 06:48 PM
Linden Lab Issue ID: SL-35044


 Description  « Hide
Simple example:

1. Create a flat cube prim.

2. Shift+drag a duplicate of this prim. Control+Z to center it with previous prim.

3. Rotate the new prim 90-degrees. Thus, creating a crossed (X-shaped) flat prim design. Typical design for creating basic trees, plants, etc.

4. Apply a full transparent texture onto both prims.

5. Select the front and back sides of each prim and apply a texture that is both opaque and transparent. Like a large leaf for example with transparent edges.

6. Rotate the camera around the creation and notice how the texture of one prim overlaps the texture of another prim in a undesirable way.



 All   Comments   Change History      Sort Order: Ascending order - Click to sort in descending order
Rob Linden made changes - 12/Feb/07 06:52 PM
Field Original Value New Value
Summary Alpha Depth Sorting Prim textures overlap strangely when transparent textures applied
Second Life Admin made changes - 12/Feb/07 06:53 PM
Linden Lab Issue ID SL-35044
Simon Nolan made changes - 24/May/07 08:55 PM
Link This issue is duplicated by VWR-455 [ VWR-455 ]
Simon Nolan made changes - 24/May/07 09:05 PM
Link This issue is related to by VWR-504 [ VWR-504 ]
Simon Nolan made changes - 24/May/07 09:06 PM
Link This issue is related to by VWR-203 [ VWR-203 ]
Simon Nolan made changes - 24/May/07 09:07 PM
Link This issue is related to by VWR-824 [ VWR-824 ]
Daedalus Young made changes - 16/Jul/07 08:00 AM
Link This issue is related to by VWR-505 [ VWR-505 ]
Soft Linden made changes - 16/Jul/07 03:21 PM
Link This issue is duplicated by VWR-824 [ VWR-824 ]
beq janus made changes - 19/Jul/07 12:04 PM
Priority Normal [ 4 ] Major [ 3 ]
beq janus made changes - 19/Jul/07 12:18 PM
Metal Wombat made changes - 05/Aug/07 10:34 PM
Attachment transparency-rendering-bug.jpg [ 11460 ]
Ayam Merlin made changes - 27/Aug/07 10:21 AM
Attachment Issue - Transparency-render-1.jpg [ 11705 ]
Ayam Merlin made changes - 27/Aug/07 10:23 AM
Attachment Issue - Transparency-render-2.jpg [ 11706 ]
Kevin Susenko made changes - 13/Sep/07 02:45 AM
Affects Version/s 1.18.3 Release Candidate [ 10140 ]
Shoshana Epsilon made changes - 13/Sep/07 03:12 PM
Attachment BugSnap_001.bmp [ 11922 ]
Patrice Fierrens made changes - 27/Sep/07 03:33 PM
Attachment screenshot-1.jpg [ 12113 ]
beq janus made changes - 19/Oct/07 05:16 PM
Affects Version/s 1.18.3.5 [ 10160 ]
Affects Version/s 1.18.2.0 [ 10130 ]
Affects Version/s 1.18.0 [ 10101 ]
Affects Version/s 1.18.1.2 [ 10120 ]
Affects Version/s 1.18.4 Release Candidate [ 10180 ]
Joshua Philgarlic made changes - 03/Nov/07 04:16 PM
Attachment 2007_11_03_002.bmp [ 12605 ]
Joshua Philgarlic made changes - 03/Nov/07 04:21 PM
Attachment screenshot-2.jpg [ 12606 ]
Cuddly Fuhr made changes - 09/Nov/07 06:37 AM
Affects Version/s 1.18.4.3 [ 10190 ]
Rob Linden made changes - 22/Dec/07 01:04 AM
Workflow jira [ 10064 ] jira-2007-12-21 [ 20801 ]
Rob Linden made changes - 22/Dec/07 01:18 AM
Workflow jira [ 20801 ] jira-2007-12-21 [ 21575 ]
Rob Linden made changes - 22/Dec/07 02:52 PM
Workflow jira-2007-12-21 [ 21575 ] jira-2007-12-22 [ 29986 ]
Rob Linden made changes - 22/Dec/07 03:08 PM
Workflow jira-2007-12-21 [ 29986 ] jira-2007-12-22 [ 31024 ]
Rob Linden made changes - 22/Dec/07 07:53 PM
Workflow jira-2007-12-22 [ 31024 ] jira-2007-12-22a [ 36881 ]
Rob Linden made changes - 22/Dec/07 08:09 PM
Workflow jira-2007-12-22 [ 36881 ] jira-2007-12-22a [ 37611 ]
Rob Linden made changes - 22/Dec/07 09:08 PM
Workflow jira-2007-12-22 [ 37611 ] jira-2007-12-22a [ 40793 ]
Rob Linden made changes - 22/Dec/07 09:24 PM
Workflow jira-2007-12-22 [ 40793 ] jira-2007-12-22a [ 41476 ]
Moon Fargis made changes - 27/Dec/07 04:14 AM
Attachment Snapshot1_001.jpg [ 13995 ]
Moon Fargis made changes - 27/Dec/07 04:17 AM
Attachment Snapshot1_002.jpg [ 13996 ]
Moon Fargis made changes - 27/Dec/07 04:20 AM
Attachment Snapshot1_003.jpg [ 13997 ]
Azziej Enzo made changes - 13/Jan/08 02:32 PM
Affects Version/s 1.18.5.3 [ 10210 ]
Affects Version/s 1.18.4.3 [ 10190 ]
Harleen Gretzky made changes - 26/Jan/08 11:09 AM
Link This issue is duplicated by VWR-4391 [ VWR-4391 ]
Naoki Ninetails made changes - 29/Jan/08 09:46 AM
Attachment Skirt + Door = pants.jpg [ 14475 ]
beq janus made changes - 10/Feb/08 08:34 AM
Affects Version/s First Look: WindLight [ 10080 ]
Affects Version/s 1.19.0 Release Candidate [ 10251 ]
Torley Linden made changes - 12/Feb/08 08:58 AM
Affects Version/s First Look: WindLight [ 10080 ]
Vladislav Petrov made changes - 13/Mar/08 04:48 PM
Affects Version/s 1.19.0.5 [ 10260 ]
Lex Neva made changes - 22/Mar/08 09:47 AM
Link This issue is duplicated by VWR-5783 [ VWR-5783 ]
Harleen Gretzky made changes - 16/Apr/08 06:14 AM
Link This issue is duplicated by VWR-6596 [ VWR-6596 ]
Tofu Linden made changes - 29/Apr/08 03:20 AM
Link This issue Relates to VWR-6713 [ VWR-6713 ]
nya Linden made changes - 13/Jun/08 12:58 PM
Priority Major [ 3 ] Nice to have [ 6 ]
Christophe003 Carter made changes - 09/Aug/08 09:30 AM
Affects Version/s 1.19.1.4 [ 10290 ]
Affects Version/s 1.20 [ 10350 ]
Priority Nice to have [ 6 ] Normal [ 4 ]
Nanduka Balogh made changes - 14/Aug/08 10:49 AM
Status Open [ 1 ] Resolved [ 5 ]
Last Triaged 14/Aug/08 06:48 PM
Resolution Contact Support [ 7 ]
Coyote Pace made changes - 14/Aug/08 10:57 AM
Resolution Contact Support [ 7 ]
Status Resolved [ 5 ] Reopened [ 4 ]
Contagious Republic made changes - 28/Aug/08 02:14 AM
Gellan Glenelg made changes - 30/Aug/08 02:05 AM
Link This issue is duplicated by VWR-8874 [ VWR-8874 ]
aaron23 decuir made changes - 29/Sep/08 11:44 AM
Attachment Snapshot_003.png [ 19153 ]
Harleen Gretzky made changes - 12/Oct/08 09:08 AM
Link This issue is original of duplicate VWR-9712 [ VWR-9712 ]
Ilyara Tardis made changes - 22/Oct/08 04:27 AM
Attachment AlphaMapVideo.swf [ 19753 ]
Ziah Zhangsun made changes - 27/Oct/08 03:06 PM
Affects Version/s 1.21 [ 10370 ]
Affects Version/s 1.20 [ 10350 ]
Ziah Zhangsun made changes - 27/Oct/08 03:07 PM
Affects Version/s 1.20 [ 10350 ]
Geneko Nemeth made changes - 29/Oct/08 09:13 PM
Link This issue is original of duplicate VWR-9941 [ VWR-9941 ]
Holly Klaxon made changes - 30/Oct/08 12:30 PM
Comment [ I get the same effects as those pictured in the photos when using nearly any .tga texture file, not only those that have obviously transparent areas. The interior walls of my store, for example, did not have any windows, yet textures/objects beyond the other, exterior side of the wall still bled through.

Changing the file format of the interior texture to jpeg solved the problem, but that sort of solution is not always possible. I've spent over a month building a space ship in which particle effects added tremendously to atmosphere, but only when viewed from an angle where a jpeg textured prim was behind the particles. In front of the .tga textured hull wall, due to the portholes, the particles are completely invisible. I've now removed most of the particle effects from the ship, lest the buyer think the build itself is flawed.

Those are just a couple of issues from a very long list that I've experienced personally. This bug is a serious pain to anyone who builds on SL, and it detracts greatly from the visual experience for everyone. I hope to see it resolved very soon.

 

  

]
Holly Klaxon made changes - 30/Oct/08 12:31 PM
Comment [ Daedalus, you didn't actually read my comment, did you? I mentioned not once, but twice,that the issue does not occur when using .jpeg. I'm also familiar with graphic programs and files, and I know why .jpeg files don't exhibit the same issues.

I wanted to file a bug report because I believe it needs to be fixed. I honestly do not care what causes it, because regardless of whether it's alpha channels, evil squirrels, bad karma, or whatever... it doesn't matter. The result is what counts.

This issue may not be limited to SL either, but the reason myself and others are commenting here is that we use SL, and we're really not too concerned about what happens with other OpenGL apps. There is some sort of fix possible on SL as long as people don't pigeon hole their thoughts into "it's impossible" mode and instead search for a solution. As familiar as you seem to be with the issue, perhaps if you get out of "it's impossbile" mode and begin searching for a fix, you'll be the one to find it.

]
Sue Linden made changes - 13/Nov/08 11:08 AM
Workflow jira-2007-12-22a [ 41476 ] jira-2008-11-14 [ 64732 ]
Sue Linden made changes - 13/Nov/08 11:30 AM
Workflow jira-2007-12-22a [ 64732 ] jira-2008-11-14 [ 72682 ]
Sue Linden made changes - 13/Nov/08 05:01 PM
Workflow jira-2008-11-14 [ 72682 ] jira-2008-11-14a [ 97416 ]
Sue Linden made changes - 13/Nov/08 05:15 PM
Workflow jira-2008-11-14 [ 97416 ] jira-2008-11-14a [ 102973 ]
Sue Linden made changes - 13/Nov/08 05:25 PM
Workflow jira-2008-11-14 [ 102973 ] jira-2008-11-14a [ 106628 ]
Sue Linden made changes - 13/Nov/08 05:40 PM
Workflow jira-2008-11-14 [ 106628 ] jira-2008-11-14a [ 111961 ]
Sue Linden made changes - 13/Nov/08 06:09 PM
Workflow jira-2008-11-14 [ 111961 ] jira-2008-11-14a [ 122620 ]
Sue Linden made changes - 13/Nov/08 06:36 PM
Workflow jira-2008-11-14 [ 122620 ] jira-2008-11-14a [ 132596 ]
Sue Linden made changes - 13/Nov/08 06:55 PM
Workflow jira-2008-11-14 [ 132596 ] jira-2008-11-14a [ 139859 ]
Bernhard Lytton made changes - 01/Dec/08 12:38 PM
Priority Normal [ 4 ] Major [ 3 ]
meni kaiousei made changes - 25/Dec/08 01:56 PM
Link This issue is related to by VWR-737 [ VWR-737 ]
BigPapi Linden made changes - 18/Feb/09 01:34 PM
Status Reopened [ 4 ] Closed [ 6 ]
Resolution Expected Behavior [ 9 ]
Contagious Republic made changes - 05/Mar/09 08:10 PM
Resolution Expected Behavior [ 9 ]
Status Closed [ 6 ] Reopened [ 4 ]
BigPapi Linden made changes - 06/Mar/09 08:29 AM
Status Reopened [ 4 ] Resolved [ 5 ]
Resolution Expected Behavior [ 9 ]
Harleen Gretzky made changes - 01/Apr/09 02:07 PM
Link This issue is original of duplicate VWR-12666 [ VWR-12666 ]
Alexa Linden made changes - 02/Apr/09 10:18 AM
Link This issue is original of duplicate VWR-12033 [ VWR-12033 ]
bau ur made changes - 21/Apr/09 08:45 AM
Resolution Expected Behavior [ 9 ]
Status Resolved [ 5 ] Reopened [ 4 ]
Aeron Kohime made changes - 21/Apr/09 09:57 AM
Status Reopened [ 4 ] Resolved [ 5 ]
Resolution Expected Behavior [ 9 ]
Ellla McMahon made changes - 08/May/09 11:45 AM
Link This issue is related to by VWR-13305 [ VWR-13305 ]
Harleen Gretzky made changes - 05/Aug/09 04:55 PM
Link This issue is original of duplicate SNOW-172 [ SNOW-172 ]
Alexa Linden made changes - 31/Aug/09 03:31 PM
Link This issue is original of duplicate VWR-716 [ VWR-716 ]
Yichard Muni made changes - 24/Sep/09 07:34 AM
Attachment 4textures.png [ 29421 ]
Yichard Muni made changes - 01/Oct/09 01:20 AM
Comment [ Here is an example of 4 superimposed full alpha textures, with no muddling (see the image "4textures" at the top of the page).


The example purposely uses small textures, which show the white edge of each.
The first full alpha texture is the folliage
The second full alpha texture is the brick wall, with a window opening
The third full alpha texture is the white curtain
The fourth full alpha texture is inner green wall, with a second window showing the landscape behind all the four full alpha textures.
Full alpha means that we can have all the degrees of transparency, not just one transparent colour.

This clearly shows that it is possible to avoid the ugly antic bug of texture muddling, without major changes to the browser. The tip is simple, and I knew it even before Linden labs was created. In more, it will speed up the rendering. There is however still a module to add to the browser to generalize the solution.

Now if you want to know how I did, you will have to reopen this issue, and place apologies for one month on the splash screen of the viewer, for speaking to us as if we were all idiots. ]
Moon Fargis made changes - 09/Oct/09 01:35 AM
Resolution Expected Behavior [ 9 ]
Status Resolved [ 5 ] Reopened [ 4 ]
Harleen Gretzky made changes - 09/Oct/09 04:19 AM
Status Reopened [ 4 ] Resolved [ 5 ]
Resolution Expected Behavior [ 9 ]
Harleen Gretzky made changes - 15/Nov/09 09:02 PM
Link This issue is original of duplicate VWR-16103 [ VWR-16103 ]