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IDProjectCategoryView StatusDate SubmittedLast Update
0015715VTK(No Category)public2015-09-09 18:392016-08-12 09:55
ReporterNicole Aucoin 
Assigned ToMax Smolens 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
ProjectTBD
Typeincorrect functionality
Summary0015715: vtkRenderLargeImage tiles gradient background
DescriptionWhen using vtkRenderLargeImage with a gradient background in the renderer, the resulting image shows a tiled background behind the correctly magnified part (see largeImageGradient.png).
Steps To Reproduce
Additional Information
TagsNo tags attached.
Relationships
Attached Filespng largeImageGradient.png (45,041) 2015-09-09 18:39
https://www.vtk.org/Bug/file/9898/largeImageGradient.png
png

? RenderLargeImageGradient.py (1,827) 2015-09-09 18:40
https://www.vtk.org/Bug/file/9899/RenderLargeImageGradient.py
Issue History
Date ModifiedUsernameFieldChange
2015-09-09 18:39Nicole AucoinNew Issue
2015-09-09 18:39Nicole AucoinFile Added: largeImageGradient.png
2015-09-09 18:40Nicole AucoinFile Added: RenderLargeImageGradient.py
2015-10-27 14:26Jean-Christophe Fillion-RobinNote Added: 0035396
2015-10-27 15:38Jean-Christophe Fillion-RobinAssigned To => Max Smolens
2015-11-06 15:49Max SmolensNote Added: 0035435
2015-12-09 10:07Max SmolensNote Added: 0035524
2015-12-09 10:07Max SmolensResolutionopen => fixed
2015-12-10 11:35Nicole AucoinNote Added: 0035538
2015-12-10 12:08Max SmolensNote Added: 0035539
2015-12-10 12:26Nicole AucoinNote Added: 0035540
2015-12-10 12:27Nicole AucoinNote Edited: 0035540bug_revision_view_page.php?bugnote_id=35540#r1420
2016-08-12 09:55Kitware RobotNote Added: 0037409
2016-08-12 09:55Kitware RobotStatusbacklog => closed
2016-08-12 09:55Kitware RobotResolutionfixed => moved

Notes
(0035396)
Jean-Christophe Fillion-Robin   
2015-10-27 14:26   
From Lisa: Should be a relatively simple fix (compute new colors for the vertices of the background polygon based on what portion of the full viewport is being rendered). Of course, there could still be some artifact in the background gradient (depending on when OpenGL converts the float color to an unsigned char). The other option is to render that background polygon in 3D (I assume it is just being rendered in 2D to fill the current viewport), then it would just be part of the 3D scene and automatically work.
(0035435)
Max Smolens   
2015-11-06 15:49   
See https://gitlab.kitware.com/vtk/vtk/merge_requests/841 [^]
(0035524)
Max Smolens   
2015-12-09 10:07   
Merged in commit:
https://gitlab.kitware.com/vtk/vtk/commit/7794d4dc43875ccfa7b6bf525cdeaaa571945dd4 [^]
(0035538)
Nicole Aucoin   
2015-12-10 11:35   
Does this fix the crash on Mac issue?
(0035539)
Max Smolens   
2015-12-10 12:08   
@nicole this fix was already in Slicer's fork of VTK. I believe the crash on Mac is only in the PR for high-resolution screenshots of the slice views:
https://github.com/Slicer/Slicer/pull/411 [^]

I don't think there's a VTK bug report for that crash yet.
(0035540)
Nicole Aucoin   
2015-12-10 12:26   
(edited on: 2015-12-10 12:27)
Oops, sorry, got things confused. The crash was reported after you pointed me to this branch:
https://github.com/msmolens/Slicer/commit/0151ae842f3a74de2170712d930a1e6b0b088ec6 [^]
Found it, right where you'd posted above, I had made a comment on the Slicer pull request:
https://github.com/Slicer/Slicer/pull/411 [^]
I hadn't made a VTK bug report since you'd submitted that pull request fairly quickly.
(0037409)
Kitware Robot   
2016-08-12 09:55   
Resolving issue as `moved`.

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