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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0007842 | VTK | (No Category) | public | 2008-10-22 15:47 | 2016-08-12 09:55 | ||||
| Reporter | Elvis John Dowson | ||||||||
| Assigned To | Kitware Robot | ||||||||
| Priority | normal | Severity | major | Reproducibility | have not tried | ||||
| Status | closed | Resolution | moved | ||||||
| Platform | OS | OS Version | |||||||
| Product Version | |||||||||
| Target Version | Fixed in Version | ||||||||
| Summary | 0007842: vtkCocoaRenderWindow displays incorrect image using vtk-5.3.x, Mac OS X 10.5.5, Cocoa 64-bits | ||||||||
| Description | Hi, The image rendered by Cocoa is incorrect, when compared to a similar image generated using Carbon. The attached file shows the image rendering error. The bottom of the cylinder can be seen in the picture> Normally, it should not be seen. Best regards, Elvis | ||||||||
| Tags | No tags attached. | ||||||||
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| Attached Files |  vtkCocoaRenderWindow error 01.jpg [^] (35,600 bytes) 2008-10-22 15:47
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(0013960) Elvis John Dowson (reporter) 2008-10-28 15:19 |
Looks like you're not getting your Z-Buffer in the Cocoa implementation. Are you requesting one? Paul Miller | paul@fxtech.com | www.fxtech.com | |
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(0013961) Elvis John Dowson (reporter) 2008-10-28 15:20 |
It does look like its missing a depth buffer. Its supposed to give you one without your asking. I'm looking at this.... vtkCocoaRenderWindow::CreateGLContext() and it only makes one call to create the pixel format. I think your problem is that it couldn't satisfy all the things asked for so the OpenGL library decides to drop the depth buffer to give you the other features. In the Carbon, X11 and Win32 implementations in VTK, it tells OpenGL not to drop any features, and allows VTK to determine the priority of the features it asks for, and it makes multiple calls until one succeeds. Its more robust that way. For example, if its a tradeoff between having a depth buffer and having hardware acceleration, we'd rather have a depth buffer. So, I think this is a problem with the VTK/Cocoa implementation. Clint Stimpson |
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(0037034) Kitware Robot (administrator) 2016-08-12 09:55 |
Resolving issue as `moved`. This issue tracker is no longer used. Further discussion of this issue may take place in the current VTK Issues page linked in the banner at the top of this page. |
| Notes |
| Issue History | |||
| Date Modified | Username | Field | Change |
| 2008-10-22 15:47 | Elvis John Dowson | New Issue | |
| 2008-10-22 15:47 | Elvis John Dowson | File Added: vtkCocoaRenderWindow error 01.jpg | |
| 2008-10-28 15:19 | Elvis John Dowson | Note Added: 0013960 | |
| 2008-10-28 15:20 | Elvis John Dowson | Note Added: 0013961 | |
| 2011-06-16 13:11 | Zack Galbreath | Category | => (No Category) |
| 2016-08-12 09:55 | Kitware Robot | Note Added: 0037034 | |
| 2016-08-12 09:55 | Kitware Robot | Status | expired => closed |
| 2016-08-12 09:55 | Kitware Robot | Resolution | open => moved |
| 2016-08-12 09:55 | Kitware Robot | Assigned To | => Kitware Robot |
| Issue History |
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