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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0011272 | ParaView | Bug | public | 2010-09-28 13:24 | 2010-12-20 16:29 | ||||
| Reporter | Alan Scott | ||||||||
| Assigned To | David Partyka | ||||||||
| Priority | high | Severity | major | Reproducibility | always | ||||
| Status | closed | Resolution | fixed | ||||||
| Platform | OS | OS Version | |||||||
| Product Version | |||||||||
| Target Version | Fixed in Version | 3.10 | |||||||
| Summary | 0011272: Windows .avi files look like 8 bit color. | ||||||||
| Description | this shows with the 3.8.0 and 3.8.1 release. Local server, windows. Open can.exo. Save Animation to a .avi file. Save Animation to .png files. Compare them. They are different. Since movies are one of our main products, I am marking this as high priority. It must be fixed for 3.10. Since it is in 3.8.0 (and had not been found), not holding the 3.8.1 release for it. | ||||||||
| Tags | No tags attached. | ||||||||
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(0023165) David Partyka (developer) 2010-11-11 08:21 |
I did some experimentation with the vtkAviWriter and can conclude that what we are seeing are compression artifacts due to the small variations in the grey color of the can. If you color by some array it does look a bit better. That said, If I disable all compression in vtkAviWriter and write out raw avi it looks perfect but produces around 6MB of video per second resulting in a 255MB file. With compression we get a 2MB file. The only built in codec Windows provides is MJPEG wich isn't a very code codec. Perhaps we should leverage this to provide an option to save animations using the oggtheora library in vtk which I assume performs much better. Though the trade off is that it may not play out of the box without the user installing the necessary codec. |
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(0023172) David Partyka (developer) 2010-11-11 10:04 |
After further discussion with Utkarsh I am going to change the default compressor that vtkAviWriter uses to be DIB instead of MSVC. This produces better quality images but at the expense of a fair amount of diskspace. Please try it out and let us know what you think. |
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(0023287) David Partyka (developer) 2010-11-16 10:11 |
Resolving this for now. Feel free to reopen. |
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(0024301) Alan Scott (manager) 2010-12-20 16:29 |
I think this is good enough. If we get any complaints, we will reopen. tested Windows client, remote server, trunk. |
| Notes |
| Issue History | |||
| Date Modified | Username | Field | Change |
| 2010-09-28 13:24 | Alan Scott | New Issue | |
| 2010-11-05 13:37 | Utkarsh Ayachit | Status | backlog => tabled |
| 2010-11-05 13:37 | Utkarsh Ayachit | Assigned To | => David Partyka |
| 2010-11-11 08:21 | David Partyka | Note Added: 0023165 | |
| 2010-11-11 08:21 | David Partyka | Status | tabled => @80@ |
| 2010-11-11 08:21 | David Partyka | Resolution | open => fixed |
| 2010-11-11 10:04 | David Partyka | Note Added: 0023172 | |
| 2010-11-11 10:04 | David Partyka | Status | @80@ => @20@ |
| 2010-11-11 10:04 | David Partyka | Resolution | fixed => reopened |
| 2010-11-16 10:11 | David Partyka | Note Added: 0023287 | |
| 2010-11-16 10:11 | David Partyka | Status | @20@ => @80@ |
| 2010-11-16 10:11 | David Partyka | Fixed in Version | => 3.10.shortlist |
| 2010-11-16 10:11 | David Partyka | Resolution | reopened => fixed |
| 2010-12-01 15:31 | Utkarsh Ayachit | Fixed in Version | 3.10.shortlist => 3.10 |
| 2010-12-20 16:29 | Alan Scott | Note Added: 0024301 | |
| 2010-12-20 16:29 | Alan Scott | Status | @80@ => closed |
| Issue History |
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