[JAVA3D] Transform3D.lookAt creating extruded geometry

2002-03-14 Thread Mark Crompton
Hi all, In order to extrude a 2D face along a curve I'm using the inverse of the lookAt transformation. The 2D face has a fixed normal of (0,0,-1) and up vector of (0,1,0). The lookAt method does a great job of placing the 2D face at the correct point along the curve and rotating it so the fa

Re: [JAVA3D] Lighting???

2002-03-07 Thread Mark Crompton
Kyle, I'd be very interested if you find a way of doing directional lighting with geometry which isn't wound consistently or correctly. The best I've come up with so far is to: 1) disable back-face culling, 2) have two directional lights pointing towards each other, and 3) enable back-face norm

Re: [JAVA3D] WakeupOnCollisionXxxx

2002-02-26 Thread Mark Crompton
- Kelvin > > Java 3D Team > Sun Microsystems Inc. > > >X-Unix-From: [EMAIL PROTECTED] Mon Feb 25 08:44:33 2002 > >Date: Mon, 25 Feb 2002 16:46:22 + > >From: Mark Crompton <[EMAIL PROTECTED]> > >Subject: RE: [JAVA3D] WakeupOnCollisionXxxx > >

[JAVA3D] WakeupOnCollisionXxxx

2002-02-21 Thread Mark Crompton
t the collision behaviors triggering. Thanks for any help you can offer, Mark Crompton http://sourceforge.net/projects/jlug === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JA

Re: [JAVA3D] SingularMatrixException in Transform3D.invertAffine()

2002-02-21 Thread Mark Crompton
(since you loose one or more dimensions). > > The above applies of course to for quadratical matrices of other dimensions also. > > Hope that helps. > > regards > Paul > > Mark Crompton schrieb: > > > Hi all, > > > > I'm currently trying to add collis

[JAVA3D] SingularMatrixException in Transform3D.invertAffine()

2002-02-21 Thread Mark Crompton
ehaviorStructure.java:210 ) at javax.media.j3d.StructureUpdateThread.doWork(StructureUpdateThread.java:83) at javax.media.j3d.J3dThread.run(J3dThread.java:256) Thanks, Mark Crompton http://sourceforge.net/project/jlug =