MantisBT - VTK
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IDProjectCategoryView StatusDate SubmittedLast Update
0003294VTK(No Category)public2006-05-26 10:482016-08-12 09:54
ReporterEigil Samset 
Assigned ToWill Schroeder 
PrioritylowSeverityfeatureReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
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Summary0003294: erronious multiplication order in vtkCamera usertransform
DescriptionThe current Transform in vtkCamera is computed as:
Transform = UserTransform*PerspectiveTransform*ViewTransform

To me this does not make any sense. For what I would like to do (controlling camera position and orientation by an external transform), this would make more sense:

Transform = PerspectiveTransform*UserTransform*ViewTransform

This can be achived by moving the concatenate code in ComputePerspectiveTransform to the end of the function.

Also, when using the UserTransform this way the camera light will not follow, since it only depends on the ViewTransform. Unless the UserTransform is intended for an entierly different use, it would be nice to have the camera light transform depend on UserTransform*ViewTransform.
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Issue History
Date ModifiedUsernameFieldChange
2011-06-16 13:11Zack GalbreathCategory => (No Category)
2016-08-12 09:54Kitware RobotNote Added: 0036871
2016-08-12 09:54Kitware RobotStatusexpired => closed
2016-08-12 09:54Kitware RobotResolutionopen => moved

Notes
(0036871)
Kitware Robot   
2016-08-12 09:54   
Resolving issue as `moved`.

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