[vtkusers] speed of volumetric rendering

[Lisa S. Avila]

Hello Edi,

What mapper are you using? VolView uses up to three 
vtkVolumeTextureMapper2D mappers and one vtkVolumeRayCastMapper mapper (or 
just a single vtkVolumeProMapper if happen to have that hardware). The 
three texture mappers have different resolutions of data - one of which is 
smaller than 64x64x64 I believe (maybe 32x64x64).

What rendering rates are you seeing, and how different are they than what 
you see in VolView?


Lisa


At 10:33 AM 5/22/2001, Edi Schreibmann wrote:
>I am triying to use volumetric rendering in one application, it should 
>look similar to what it isin VolView.
>The difference is the speed -  can not make thevolume interact at the 
>speed that exists in VolView.
>I'm trying :
>1. to use different mappers in a vtkLODProperty
>2. to subsample the input data to a size of 64x64x64
>3. to specify the DesiredUpdateRate in the interactor
>4. to use vtkInteractorStyleTrackballCamera
>
>Is there any other trick to speed up the interaction in a volume renderer ?
>Thank you very much.
>Edi
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