  | | | Evaluation of Displacement shader failed | Evaluation of Displacement shader failed 2004-05-17 - By Jim Rothrock
Back > -- -- Original Message -- -- > From: Morten Bartholdy > To: XSI@(protected) > Sent: Thursday, May 13, 2004 4:52 PM > Subject: Evaluation of Displacement shader failed >
"> Evaluation of Displacement shader failed"
> Anybody have experience with this one, and perhaps an idea of how to fix /avoid it?
Make sure that you are using fine displacement approximation. Displacement with regular displacement approximation can fail if front-facing and back -facing triangles share vertices. The fine displacement algorithm does not have this limitation. -- Jim Rothrock | jimr@(protected) <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859 (See http://iso-8859.ora-code.com)-1"> <META content="MSHTML 6.00.2800.1400" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff><FONT face=Arial size=2> <DIV style="FONT: 10pt arial">> -- -- Original Message -- -- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>> From:</B> <A title=xsi@(protected) href="mailto:xsi@(protected)">Morten Bartholdy</A> </DIV> <DIV style="FONT: 10pt arial"><B>> To:</B> <A title=XSI@(protected) href="mailto:XSI@(protected)">XSI@(protected)</A> </DIV> <DIV style="FONT: 10pt arial"><B>> Sent:</B> Thursday, May 13, 2004 4:52 PM</DIV> <DIV style="FONT: 10pt arial"><B>> Subject:</B> Evaluation of Displacement shader failed</DIV> <DIV>><BR></DIV> <DIV><FONT face=Arial size=2><FONT size=2> <P>"> Evaluation of Displacement shader failed"</P> <P>> </FONT></FONT><FONT face=Arial size=2>Anybody have experience with this one, and perhaps an idea of how to fix/avoid it?</FONT></P></DIV> <DIV>Make sure that you are using fine displacement approximation. Displacement with regular displacement approximation can fail if front-facing and back-facing triangles share vertices. The fine displacement algorithm does not have this limitation.</FONT></DIV> <DIV>--<BR>Jim Rothrock | <A href="mailto:jimr@(protected)">jimr@(protected)</A></DIV></BODY></HTML>
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