View Issue Details [ Jump to Notes ]

[ Print ]

Project

Category

View Status

Date Submitted

Last Update

0015838

VTK

(No Category)

public

2015-11-18 03:36

2015-11-23 12:15

Reporter

Simon ESNEAULT

Assigned To

Priority

normal

Severity

minor

Reproducibility

have not tried

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

6.2.0

Target Version

Fixed in Version

Summary

0015838: vtkTexturedActor2D's transparent pixel are incorrectly rendered when used with FixedPoint VolumeRendering in the same renderer

Description

VTK 6.3/OGL2, Windows/OSX
The problem is visible when trying to render a vtkTextActor, or a vtkTexturedButtonRepresentation2D with a png that contain transparent pixels in the same renderer than a vtkFixedPointVolumeRayCastMapper.
When using a vtkGPUVolumeRayCastMapper, there is no problem

Attached a very simple example that demonstrate that a vtkTextActor AND a vtkTexturedButtonRepresentation2D are not correctly drawn in that case :
- OpenGL1 backend : http://picpaste.com/pics/OGL1-Texture-okay.1447690100.png [^]
- OpenGL2 backend : http://picpaste.com/pics/OGL2-Texture-not-okay.1447690272.png [^]

The transparent pixels seem transformed to white ...

Let me know if any more information are needed, hope that helps !
Simon

Tags

vtkTextActor

Project

TBD

Type

incorrect functionality

Attached Files

BlurredText.zip [^] (1,823 bytes) 2015-11-18 03:36

Relationships

Notes
(0035484) Aashish Chaudhary (developer) 2015-11-23 12:15	Fixed in : https://gitlab.kitware.com/vtk/vtk/merge_requests/932 [^]

Issue History
Date Modified	Username	Field	Change
2015-11-18 03:36	Simon ESNEAULT	New Issue
2015-11-18 03:36	Simon ESNEAULT	File Added: BlurredText.zip
2015-11-18 03:36	Simon ESNEAULT	Tag Attached: vtkTextActor
2015-11-23 12:15	Aashish Chaudhary	Note Added: 0035484
2015-11-23 12:15	Aashish Chaudhary	Status	backlog => closed
2015-11-23 12:15	Aashish Chaudhary	Resolution	open => fixed