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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">Hello Mark,</DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">thank you for your answer, I see that you are familiar whith VTK.</DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">Yes, I'm using software based mapper , it's my first test of rendering volumes.</DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">could you please telle me morte about the hardware mappers , I don't know them and if it's possible to use them with VTK.</DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">thank you a lot for your help.<BR><BR></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Message d'origine ----<BR>De : Mark Wyszomierski <markww@gmail.com><BR>À : Mohamed Ben Reguiga <breguiga_mh@yahoo.fr><BR>Cc : VTK_Users <vtkusers@vtk.org><BR>Envoyé le : Vendredi, 22 Février 2008, 8h53mn 43s<BR>Objet : Re: [vtkusers] Volume rendering<BR><BR>I wish I could be of more help, it looks like you're using a software<BR>based mapper (vtkVolumeRayCastMapper) which for decently sized<BR>datasets on a single CPU system can really hang things up, at least in<BR>my experience. You can try downing the resolution of the volume, or at<BR>least to speed up interactive rendering, you can reduce the sampling<BR>factors (but then you may get a really really blurry blob, as best I<BR>can describe it!).<BR><BR>I've had a lot of success using the software mappers on multicore<BR>systems, the performance is pretty impressive.<BR><BR>In applications
where I've used these mappers, I put in the choice to<BR>switch to one of the hardware mappers which are pretty quick.<BR><BR>Since you never know what machine the app may run on, it's good to<BR>have a choice.<BR><BR>Hope that helps somewhat,<BR><BR>Mark<BR><BR></DIV>
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