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0003294

VTK

(No Category)

public

2006-05-26 10:48

2016-08-12 09:54

Reporter

Eigil Samset

Assigned To

Will Schroeder

Priority

low

Severity

feature

Reproducibility

always

Status

closed

Resolution

moved

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0003294: erronious multiplication order in vtkCamera usertransform

Description

The 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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Notes
(0036871) Kitware Robot (administrator) 2016-08-12 09:54	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.

Issue History
Date Modified	Username	Field	Change
2011-06-16 13:11	Zack Galbreath	Category	=> (No Category)
2016-08-12 09:54	Kitware Robot	Note Added: 0036871
2016-08-12 09:54	Kitware Robot	Status	expired => closed
2016-08-12 09:54	Kitware Robot	Resolution	open => moved