[vtkusers] ray casting a synthetic model

Lisa Sobierajski Avila lisa.avila at kitware.com
Sat Feb 3 00:06:08 EST 2001

Hello Wolfram,

This functionality does not yet exist in VTK.


At 04:54 AM 2/2/2001, Wolfram H Volpi wrote:
>Hello, everybody.
>Are there any VTK-ray-casting functions that can cast a ray directly onto
>a synthetic model, without using intermediate voxels or polygons?
>VTK ray casting functions include for example,
>vtkVolumeRayCastCompositeFunction, vtkVolumeRayCastMIPFunction,
>and vtkVolumeRayCastIsosurfaceFunction. But these examples all use
>nearest-neighbor interpolation or linear interpolation methods to render a
>voxel scene.
>I need to render an isosurface of synthetic model WITHOUT using any
>interpolations of data.  Has anyone tried that?
>Thank you,
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