Re: [JAVA3D] Java3D 1.3 crash

fraid I momentarily don't have enough time to send a complete test case, but if the above informations are not sufficient, I'll try and build a test case - simply not today I'm afraid! Thank you. Roland Sarrazin - Original Message - From: "Kelvin Chung" <[EMAIL PR

[JAVA3D] Java3D 1.3 crash

Hello, I've got a problem with the following combination: Java3D 1.3 (java3d-1_3-windows-i586-opengl-sdk.exe) and JDK 1.4 (j2sdk-1_4_0_02-windows-i586.exe), both downloaded yesterday. It crashes while executing this piece of code: Canvas3D canvas=new Canvas3D(SimpleUniverse.getPreferred

Re: [JAVA3D] Normals considered when rendering without light?

Hello, To answer my own question, here is the solution. I wasn't aware enough about Java3D's and its underlying layer OpenGL's techniques. Apparently, to do backface (or frontface) culling, OpenGL does not rely on the normals you provide him, but on what IT considers to be back and front. That

[JAVA3D] Transform3D.ortho

dvance for potential answers! Regards, Roland Sarrazin === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL

[JAVA3D] Synchronizing geometry updates

Hello, I'm looking for an efficient way to synchronize geometry updates, that is, I have some geometries that I want to update, but I would like that the user doesn't see an update after the other, but only sees the final result. I have tried to stop the rendering through universe.getCanvas().

Re: [JAVA3D] Multiple Shape3D or multiple geometries? Speed issue ...

Hello, Thanks for your answer, but maybe I haven't been clear enough in my initial message. Splitting the figurine into 20,000 Shape3D isn't a problem at all in my speed issues, since collision detection works fast in that case (after setting the automatic bounds computation): I first test aga

[JAVA3D] Multiple Shape3D or multiple geometries? Speed issue...

Hello,   I am facing the following issue: I've got a particle system which I test for collision against a human figurine consisting, let's say, of 20,000 triangles.   To get an efficient collision detection through picking, I split the figurine into a branch group of 20,000 Shape3Ds. This wor

[JAVA3D] Testing collision between triangles

on, which is logical. But my matrix has a lot of zeros. Any idea to improve that? -- Roland Sarrazin Fraunhofer Gesellschaft - Institut für Graphische Verarbeitung - Darmstadt Raum 221 @: [EMAIL PROTECTED] === To uns

Re: [JAVA3D] Bounds?

Hello again, Well, I think I could sum my question up as follows: How can I pick invisible objects? Thanks a lot, I couldn't find relevant information until now. Roland === To unsubscribe, send email to [EMAIL PROTECTED] a

[JAVA3D] Bounds?

I would be grateful! I've crawled through Java's tutorial, but couldn't get a sufficient overview to manage to identify the origin of my troubles. Thanks a lot! Roland Sarrazin === To unsubscribe, send email t

Re: [JAVA3D] Collision avoidance, bounds & co

saying it won't work :-)! Thanks for your patience! Roland Sarrazin PS : And PickTool & co allows me, as foreseen, to improve drastically performance. Not enough, though, so I'll work on optimizing my code! ===

Re: [JAVA3D] Collision avoidance, bounds & co

mances are due to my coding and not to Java3d bottlenecks, for I have seen what it is possible to do (j3dfly, etc.). Regards, Roland Sarrazin === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the m

[JAVA3D] Collision avoidance, bounds & co

Hello, I'm really sorry to get to this topic again (collision avoidance), but I have been relatively disappointed of all what I have found until now about it, as well as I haven't been convinced about my own programming trials! As a matter of fact, the problem is not that I haven't been able t

[JAVA3D] PickTool and PickResult -> null pointer exception (no returns)

This is a copy of an e-mail sent to the newsgroup comp.lang.java.3d. Thank you for your attention. Hello, I am confronted with the following issue using the class set for picking (PickResult, PickTool and PickIntersection). I have a square created using GeometryInfo and a segment which I am su

[JAVA3D] Oh no, not collision detection again!

e totally abandonned the idea of using Java3d late collision detection mechanism)? Thanks for all ideas, and I apologize for bringing the topic of collision detection over again. -- Roland Sarrazin === To unsubscribe, send email