Title: Polygon culling and backface normal flip problems
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Oh, ok, sorry about
that. Now i attached the correct modified version. The last column has the
polygon attributes set.
Anyway, we
discovered that removing a couple of ticks from the hardware acceleration bar in
win2k properties->settings->advanced->troubleshooting made
the rendering look correct. Only problem with this workaround is the rather
negative impact on rendering performance. So any alternatives would still be
appreciated.
-tero
I guess you send the original ConicWorld demo
...
----- Original Message -----
Sent: Friday, June 27, 2003 8:23
AM
Subject: [JAVA3D] Polygon culling and
backface normal flip problems
Hi all.
We would like to be able to
display our objects using two-sided polygons. To achieve this we use
setCullFace(PolygonAttributes.CULL_NONE) and setBackfaceNormalFlip(true).
The problem is that while this seems to work fine with some graphics cards,
it produces very strange looking effects on others (at least ATI radeons
have displayed this). Our scenes seem to be awash with white, as if the
polygons are receiving way too much light. (look at the attached screen shot
from a modified J3D example file, also the code that produces the problem on
our HW is attached)
Can anybody confirm this / has anyone experienced the same?
I suspect a problem in the driver so its not something that would be
possible to fix, but we would sure appreciate it if somebody had a
workaround for this.
Any alternative way to achieve two sided rendering in
Java3D?
-tero
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ConicWorld.java
Description: JavaScript source
