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ID | Project | Category | View Status | Date Submitted | Last Update | ||||
0006213 | ParaView | (No Category) | public | 2008-01-03 15:55 | 2009-05-13 13:49 | ||||
Reporter | David Karelitz | ||||||||
Assigned To | Ken Moreland | ||||||||
Priority | normal | Severity | feature | Reproducibility | always | ||||
Status | closed | Resolution | won't fix | ||||||
Platform | OS | OS Version | |||||||
Product Version | |||||||||
Target Version | Someday | Fixed in Version | |||||||
Summary | 0006213: (MARS-normal) Fix lighting when scaling by a negative factor | ||||||||
Description | When an actor is scaled by a negative value, the normals look wrong. Some polygons are front-facing and others are back-facing leading to lighting issues. | ||||||||
Tags | No tags attached. | ||||||||
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Notes | |
(0011187) Ken Moreland (manager) 2008-04-08 17:53 |
Workaround: Apply the transform filter on the polygons and then re-generate normals (if necessary). I'm not sure if there is another reasonable way around the problem. |
(0011202) David Karelitz (reporter) 2008-04-09 09:48 |
This was with multiblock data from a CTH dataset, which the transform filter doesn't support. |
(0011264) Ken Moreland (manager) 2008-04-10 16:26 |
To render something, ParaView is extracting some polygonal data from the CTH dataset. Run a filter to extract the data yourself, apply the transform filter to that, and then regenerate the normals. |
(0011332) Berk Geveci (administrator) 2008-04-15 11:59 |
There is no easy way to get around this. VTK would probably have to generate new normals based on the transform, I think. The best thing to do is to find another solution. What is the use case? |
(0011334) David Karelitz (reporter) 2008-04-15 12:05 |
The use case is that a simulation was mirrored in one axis from an experiment and we want the simulation view to match the experiment view |
(0011360) Ken Moreland (manager) 2008-04-15 16:56 |
Sounds like you should be using the reflect filter. However, there are known issues with the reflect filter in parallel (bug 0004786) and there are probably issues with multiblock data. If these issues were fixed, would that satisfy your requirements? |
(0011362) David Karelitz (reporter) 2008-04-15 17:01 |
That would work. |
(0011367) Ken Moreland (manager) 2008-04-15 17:43 |
There is no practical solution to this problem, so therefore we will not directly fix it. Instead, use the reflect filter instead of the transform filter and the normals will behave correctly. Once the two children bugs are fixed, the given use case will be solved. |
(0011369) Alan Scott (manager) 2008-04-15 17:46 |
Replaced by two child bugs. |
Notes |
Issue History | |||
Date Modified | Username | Field | Change |
2008-01-03 15:55 | David Karelitz | New Issue | |
2008-03-07 07:56 | Berk Geveci | Target Version | => MARS |
2008-03-07 08:03 | Berk Geveci | Category | Development => 3.4 |
2008-04-08 17:53 | Ken Moreland | Note Added: 0011187 | |
2008-04-09 09:48 | David Karelitz | Note Added: 0011202 | |
2008-04-10 16:26 | Ken Moreland | Note Added: 0011264 | |
2008-04-15 11:59 | Berk Geveci | Note Added: 0011332 | |
2008-04-15 11:59 | Berk Geveci | Status | backlog => @20@ |
2008-04-15 11:59 | Berk Geveci | Category | 3.4 => Someday |
2008-04-15 12:05 | David Karelitz | Note Added: 0011334 | |
2008-04-15 16:56 | Ken Moreland | Note Added: 0011360 | |
2008-04-15 17:01 | David Karelitz | Note Added: 0011362 | |
2008-04-15 17:41 | Ken Moreland | Relationship added | parent of 0004786 |
2008-04-15 17:42 | Ken Moreland | Relationship added | parent of 0006812 |
2008-04-15 17:43 | Ken Moreland | Status | @20@ => @80@ |
2008-04-15 17:43 | Ken Moreland | Resolution | open => won't fix |
2008-04-15 17:43 | Ken Moreland | Assigned To | => Ken Moreland |
2008-04-15 17:43 | Ken Moreland | Note Added: 0011367 | |
2008-04-15 17:46 | Alan Scott | Status | @80@ => closed |
2008-04-15 17:46 | Alan Scott | Note Added: 0011369 | |
2009-05-13 13:49 | Utkarsh Ayachit | Target Version | MARS => Someday |
2011-06-16 13:10 | Zack Galbreath | Category | => (No Category) |
Issue History |
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