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<DIV><FONT face=Arial size=2>I don't think the vtk renderer can do shadows... As
far as I know, the vtk scenes rendered in the book were performed by
exporting the scene in Renderman format (RIB, using vtkRIBExporter ) and
importing that into the Blue Moon Rendering Tools (BMRT) to render the
shadows. BMRT is a free raytracer available at <A
href="http://www.exluna.com/products/bmrt/">http://www.exluna.com/products/bmrt/</A> .
Win, Linux and SGI is supported</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>HTH,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Goodwin</FONT></DIV>
<DIV><FONT face=Arial size=2>University College Dublin</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Gharrison9@aol.com
href="mailto:Gharrison9@aol.com">Gharrison9@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=vtkusers@public.kitware.com
href="mailto:vtkusers@public.kitware.com">vtkusers@public.kitware.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, January 17, 2002 1:15
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [vtkusers] Shadows</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT size=2>In the Visualization
Toolkit 2nd Edition book I see that in plate 62 regarding the Computational
fluid dynamics visualization there are shadows. I would like to know how
this is done.<BR><BR>On on one of our projects we are working on animating a
tower crane sitting on a 2D in 3D surface where we would like the entire
assembly to have shadows on the ground -- as we turn the crane. This can
be done of course with raw calculations, but since we are rendering within
each animation, we don't want to extensive calculations to effect
significantly the speed or rotation.<BR><BR>Any ideas are appreciated. I
suspect that this is either a trivial problem or extremely
complex.<BR><BR>George<BR><BR><BR><B>George C. Harrison Professor
of Computer Science<BR>Norfolk State University</B><BR>Telephone:
757-823-8654<BR>Fax: 757-823-9229<BR>email: gcharrison@nsu.edu</FONT>
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