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<DIV><FONT face=Arial size=2>Hi,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am trying to render a point cloud of 3d
coordinates with associated normals. However, during rendering, points with a
normal facing away are rendered completely black. Points with front facing
normals are rendered fine.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>pActor1->GetProperty()->SetPointSize(2.0);<BR>pActor1->GetProperty()->SetColor(1.0,1.0,1.0);</FONT></DIV>
<DIV><FONT face=Arial
size=2>pActor1->GetProperty()->SetRepresentationToPoints(); //
|_rendering behaviour doesn't
change<BR>pActor1->SetBackfaceProperty(pActor1->GetProperty());//
|</FONT></DIV>
<DIV><FONT face=Arial
size=2><BR>pRenWin->GetRenderer()->TwoSidedLightingOn(); // same
result<BR>pRenWin->GetRenderer()->AddActor(pActor1);<BR>pRenWin->GetRenderer()->ResetCamera();<BR>pRenWin->show();</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Does anyone know what causes this problem (I'm
using Vtk 4.2)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Many thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Jan</FONT></DIV></BODY></HTML>