<div dir="ltr">Yes you can do this, I've rendered many color volumes using <font color="#000000" size="2"><font size="2"><font color="#000000" size="2"><font size="2"><font face="courier new,courier">vtkVolumeTextureMapper3D</font>.<br>
<br>I wrote a small sample awhile ago which takes a series of color bitmaps and volume renders it with VTK:<br><br><a href="http://devsample.org/index.php?option=com_content&task=view&id=46&Itemid=27">http://devsample.org/index.php?option=com_content&task=view&id=46&Itemid=27</a><br>
<br><br>Mark<br><br></font></font></font></font><br><div class="gmail_quote">2008/9/17 Vidyadhar N Kudalkar <span dir="ltr"><<a href="mailto:vidyadhar@lucidindia.com">vidyadhar@lucidindia.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff">
<div><font size="2" face="Arial">Hi,</font></div>
<div><font size="2" face="Arial">I have not used such (four component) volumes but
documentation indicates that vtkFixedPointVolumeRayCastMapper can handle such
volumes. May be you can try that.</font></div>
<div><font size="2" face="Arial">HTH</font></div>
<div><font size="2" face="Arial">Vidyadhar</font></div>
<blockquote style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;"><div><div></div><div class="Wj3C7c">
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">----- Original Message ----- </div>
<div style="background: rgb(228, 228, 228) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
<b>From:</b>
<a title="bluefishjj@126.com" href="mailto:bluefishjj@126.com" target="_blank">bluefishjj</a>
</div>
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:</b> <a title="vtkusers@vtk.org" href="mailto:vtkusers@vtk.org" target="_blank">vtkusers@vtk.org</a> </div>
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b> Wednesday, September 17, 2008 2:26
PM</div>
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b> [vtkusers] Can volume rendering
be true color?</div>
<div><br></div>
<div>Hi all,<br><br>Currently, I see only volume rendering with pseudo color
mapping, the opacity and the color are set according to the scalar
values<br><br>Now I have a series of true color images, which are taken for an
object at different focus positions, read into vtkJPEGReader, and each point
in the data has 3 scalar <br><br>components
(vtkJPEGReader::GetOutput()->GetNumberOfScalarComponents() == 3). I wonder
whether there is a method to set only the opacity<br><br>of the points in the
data and perform the volume rendering to obtain a true color volume rendering
objects.<br><br><br>Thanks in advance!<br></div>
<div> </div>
<div> </div><br><br>
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