[vtkusers] VolumePro1000

[Farshid Dehmeshki]

subject:
** VolumeProMapper.
** Volume Rendering
** Maximum Intensity Value

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thank you Lisa for your reply . 
I set blending mode to MIP. now I can use Volume Pro board.
but I have these problems could you please tell me what is the problem ?

1. by using VolumeMapper I could set RayCastFunction to mapper for MIP (or compisit)and I had good results, in VolumeProMapper I use "SetBlendingModeToMaximumIntensity" . the result is faster but it is completely deferent ( in fact the result is not correct , in Ct Scan Images it should display maximum intensity  but it display just first and last slice of the image and between these two slice is blank.
2.  VolumeProMapper speeds up  process  time ,but to compare with VolView, that is so slow why?
3.  I have some synthetic data ( binary and small for testing my codes ) but still many times when I try to rotate the object I have this error:
    volume data is too large for viewport.
 

many thanks in advance
ta farshid



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-----Original Message-----
From: Lisa Avila [mailto:lisa.avila at kitware.com]
Sent: 30 October 2002 22:36
To: Farshid Dehmeshki; vtkusers at public.kitware.com
Subject: Re: [vtkusers] VolumePro1000


Hello,

You don't need a ray function - this is built in to the volume pro mapper. 
Just change the blending mode to switch between MIP and compositing.

Lisa


At 10:42 AM 10/30/2002, Farshid Dehmeshki wrote:

>Hi
>In Volume rendering I use RayCastFunctions(such as MIP) and by 
>"SetVolumeRayCastFunction(RayFunctionvar)" I connect it to the vtkVolumeMapepr.
>Now I have Volumepro1000  board . I use either  VolumeProVP1000Mapper or 
>VolumeProMapper.that they are a subclass of VouleMapper.
>in this class I can detect the board(number of boards is 1 ), but how can 
>I use ray functions?
>thanks
>
>
>
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