Hi, for me it occurs all the time (even when it is not blended), but that's right, that's worse with low values. I will try with the beta 2. Thank you all and sorry for the big file. Olivier
----- Original Message ----- From: "Kelvin Chung" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, May 02, 2002 10:15 PM Subject: Re: [JAVA3D] appearance problem > Hi Olivier, > > I try the test program if I do > > > app0.setTransparencyAttributes( new TransparencyAttributes( > TransparencyAttributes.BLENDED, > 0.7f)); > > the program works fine but if I do > > app0.setTransparencyAttributes( new TransparencyAttributes( > TransparencyAttributes.BLENDED, > 0.1f)); > > it will show artifact as described. > > The difference is only the transparency alpha value set > which is not big enough. For small alpha value the object > is close to opaque so blending them together with z buffer > off will cause the artifact. > > - Kelvin > ---------------- > Java 3D Team > Sun Microsystems Inc. > > > >Date: Thu, 02 May 2002 20:06:10 +0200 > >From: Olivier Tassy <[EMAIL PROTECTED]> > >Subject: Re: [JAVA3D] appearance problem > >To: [EMAIL PROTECTED] > >MIME-version: 1.0 > >X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 > >X-Priority: 3 > >X-MSMail-priority: Normal > >Delivered-to: [EMAIL PROTECTED] > > > >Thank you all for your help. > >I finally found a way to solve my problem. > >I use > > TransparencyAttributes t_attr = new TransparencyAttributes( > > TransparencyAttributes.BLENDED, > > 0.3f, > > TransparencyAttributes.BLEND_SRC_ALPHA, > > TransparencyAttributes.BLEND_ONE > > ); > > app0.setTransparencyAttributes( t_attr ); > > > >instead of > > app0.setTransparencyAttributes(new > >TransparencyAttributes(TransparencyAttributes.BLENDED, 0.3f)); > > > > > >I send you a little soft (and a nice frog) to see the problem (see the > >initappearance() method). > > > > > >PS. I am still working with the beta1 but the problem seems to be the same > >with the beta2 (Thank you Scott). > > > > > >----- Original Message ----- > >From: "Chien Yang" <[EMAIL PROTECTED]> > >To: <[EMAIL PROTECTED]> > >Sent: Thursday, May 02, 2002 5:59 PM > >Subject: Re: [JAVA3D] appearance problem > > > > > >> Olivier, > >> > >> Are you using j3d1.3beta2 ? If yes, this is regression bug ? > >> It looks more like an winding order problem, but we're happy to look into > >> it if you've a test program for us. > >> > >> thanks, > >> > >> Chien Yang. > >> Java 3D Team. > >> > >> > >> > >> > Date: Thu, 02 May 2002 15:00:09 +0200 > >> > From: Olivier Tassy <[EMAIL PROTECTED]> > >> > Subject: Re: [JAVA3D] appearance problem > >> > To: [EMAIL PROTECTED] > >> > MIME-version: 1.0 > >> > X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 > >> > Content-transfer-encoding: 7bit > >> > X-Priority: 3 > >> > X-MSMail-priority: Normal > >> > Delivered-to: [EMAIL PROTECTED] > >> > > >> > Hi, > >> > all my objects' PolygonAttributes are already in CULL_NONE mode. > >> > When these object are double sided and transparent, the problem does not > >> > occur (with a blender only). but I need some opaque shapes too. > >> > > >> > > >> > ----- Original Message ----- > >> > From: "Artur Biesiadowski" <[EMAIL PROTECTED]> > >> > To: <[EMAIL PROTECTED]> > >> > Sent: Thursday, May 02, 2002 2:30 PM > >> > Subject: Re: [JAVA3D] appearance problem > >> > > >> > > >> > > Olivier Tassy wrote: > >> > > > Hello, > >> > > > > >> > > > I have got a strange problem with my 3D objects appearance: several > >> > > > parts of the shape seem to miss and these parts are not the same > >when I > >> > > > rotate this object. This is worse when the shape 3d is double sided > >(see > >> > > > picture). > >> > > > >> > > It looks exactly like problem with winding order. Some of your > >polygons > >> > > are facing back. Either correct your geometry (by specyfing all > >vertices > >> > > counter-clockwise looking from outside of model) or set > >> > > PolygonAttributes of appearance to CULL_NONE. > >> > > > >> > > Artur > >> > > > >> > > > >> > > >=========================================================================== > >> > > 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 PROTECTED] and include in the body of the message "help". > >> > > > >> > > >> > > >=========================================================================== > >> > 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 PROTECTED] and include in the body of the message "help". > >> > >> > >=========================================================================== > >> 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 PROTECTED] and include in the body of the message "help". > >> > > =========================================================================== > 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 PROTECTED] and include in the body of the message "help". > =========================================================================== 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 PROTECTED] and include in the body of the message "help".
