Difference between revisions of "Slicer3:Volume Rendering"
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*Note: After changing a setting please click on the volume one time to load the new settings | *Note: After changing a setting please click on the volume one time to load the new settings | ||
==Latest results and limitations== | ==Latest results and limitations== | ||
| + | ===Description=== | ||
| + | *Loading of MRML-Nodes is possible | ||
| + | *At the moment no removing of MRML-Nodes possible | ||
| + | *Change properties | ||
| + | *Calculate transfer functions automatically | ||
| + | *No performance tuning it all | ||
| + | ===Screenshots=== | ||
| + | volume rendered label map of the tutorial dataset | ||
| + | [[Image:VolumeRendering.jpg]] | ||
| + | |||
| + | volume rendered label map of the tutorial dataset, shading enabled | ||
| + | [[Image:VolumeRenderingWithShading.jpg]] | ||
==next Tasks== | ==next Tasks== | ||
Revision as of 14:49, 29 August 2007
Home < Slicer3:Volume RenderingContents
Overview
Test the module
- Copy the following folder from the svn repository http://www.na-mic.org/svn/Slicer3/trunk/Base/GUI/Testing/VolumeRendering to the following path <YourSlicerBuildDir>\lib\Slicer3\Modules\Packages\VolumeRendering.
- Restart Slicer
- Load a MRML-Scene (e. g. tutorial.xml from the Tutorial Dataset)
- Go to the module dropdown and select VolumeRendering
- Select "all" (if you use the tutorial dataset) as the Source Volume and click LoadNode =>The volume rendered Volume should appear.
- Play with the transfer function etc.
- Note: After changing a setting please click on the volume one time to load the new settings
Latest results and limitations
Description
- Loading of MRML-Nodes is possible
- At the moment no removing of MRML-Nodes possible
- Change properties
- Calculate transfer functions automatically
- No performance tuning it all
Screenshots
volume rendered label map of the tutorial dataset
volume rendered label map of the tutorial dataset, shading enabled
next Tasks
- Add a vtkSlicerNodeWidget to prototype
- Have a closer look at vtkSlicerViewerWidget
- MRML Scene
Goals
Volume rendering presets :
- MIP (Maximum Intensity Projection)
- CT Bone and vessel
- Use histogram and tresholds, find possibilities to avoid outliers
- T1 MR Air/skin interface
- Label map per-label object rendering
- Possible starting points for this task: vtkMRMLVolumeNode
Slicer3 module interface:
- Select from loaded volumes
- Specify preset transfer functions or use KWWidgets tools
Slicer3 internals:
- Correct coordinates including transforms
- Level of detail rendering
- Proper integration with surface rendering
Different Volume Rendering Algorithms
- RayCast
- 2D Texture Mapping
- 3D Texture Mapping
- ...
Wish List
- 2D Transfer functions - may require specialized opengl code integrated with VTK. Talk with Gordon about latest work from Utah.
- use glTexSubImage3D so that incremental changes to the volume can be quickly reflected
