Re: [osg-users] matrix transformation order
What is exactly the problem you are facing? To the best of my knowledge, getting the transformation sequence that lead to a given matrix is not possible (unless trivial like only one transformation and one rotation), so it is more sensible to save all the intermediate matrices in order to redo the altered one. -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- You received this message because you are subscribed to the Google Groups "OpenSceneGraph Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to osg-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/osg-users/mailman.13448.1599125453.3541.osg-users-openscenegraph.org%40lists.openscenegraph.org.
Re: [osg-users] matrix transformation order
12 year bump, anyone figure this out? I cannot. On Thursday, 25 September 2008 at 10:59:05 UTC-4 robert@gmail.com wrote: > On Thu, Sep 25, 2008 at 3:24 PM, David _ wrote: > > i hate you all > > > > ;) > > I'm afraid we know more about joking around that Matrix::decompose :-) > > Looking at the svn log the code is from Vivek Rajan, back in Februrary > 2007, so if he's still lurking on the list he'd be the best person to > answer your question. > > Robert. > > > ___ > osg-users mailing list > osg-...@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- You received this message because you are subscribed to the Google Groups "OpenSceneGraph Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to osg-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/osg-users/410bc690-efae-4bb6-85f1-d65dd1204287n%40googlegroups.com. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] matrix transformation order
up! From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Date: Wed, 24 Sep 2008 14:51:28 +0200 Subject: [osg-users] matrix transformation order Hi, right now i have a matrix which contains N transformations. One of these is a scale, and i want to modify that scale i call the decompose method of the matrix matrix.decompose(traslation, rotation_quat, scale, scale_orientation); then i modify the scale with the new value and when i try to compose the matrix back i´m not sure about the order of matrix multiplying i should use to get the same transformated object than before with the new scale applied what looks ok to me is osg::Matrix(scale_orientation) * scale * osg::Matrix(rotation_quat) * traslation, but this is not working so if anyone have any idea it will be appreciated i´ve also tried with scale * osg::Matrix(rotation_quat) * traslation the rotation and scale should both be around the object space origin and the original object matrix was built using scale * rotation * translate thanks La cartera, las gafas. ¿te falta algo? Ahora llévate Messenger en tu móvil _ ¿Sigue el calor? Consulta MSN El tiempo http://eltiempo.es.msn.com/___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] matrix transformation order
On Thu, Sep 25, 2008 at 10:48 AM, David _ [EMAIL PROTECTED] wrote: up! left! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] matrix transformation order
On Thu, Sep 25, 2008 at 10:48 AM, David _ [EMAIL PROTECTED] wrote: up! left! Right! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] matrix transformation order
I'll beat you all: up! left! Right! Frustum! Ha! I got all your answers and 3 more! J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] matrix transformation order
i hate you all ;) Date: Thu, 25 Sep 2008 09:19:19 -0400 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] matrix transformation order I'll beat you all: up! left! Right! Frustum! Ha! I got all your answers and 3 more! J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _ ¿Eres un cotilla? Disfruta de todas las novedades en MSN Corazón http://entretenimiento.es.msn.com/corazon/___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] matrix transformation order
On Thu, Sep 25, 2008 at 3:24 PM, David _ [EMAIL PROTECTED] wrote: i hate you all ;) I'm afraid we know more about joking around that Matrix::decompose :-) Looking at the svn log the code is from Vivek Rajan, back in Februrary 2007, so if he's still lurking on the list he'd be the best person to answer your question. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] matrix transformation order
Hi, right now i have a matrix which contains N transformations. One of these is a scale, and i want to modify that scale i call the decompose method of the matrix matrix.decompose(traslation, rotation_quat, scale, scale_orientation); then i modify the scale with the new value and when i try to compose the matrix back i´m not sure about the order of matrix multiplying i should use to get the same transformated object than before with the new scale applied what looks ok to me is osg::Matrix(scale_orientation) * scale * osg::Matrix(rotation_quat) * traslation, but this is not working so if anyone have any idea it will be appreciated i´ve also tried with scale * osg::Matrix(rotation_quat) * traslation the rotation and scale should both be around the object space origin and the original object matrix was built using scale * rotation * translate thanks _ Llega la nueva temporada. Consulta las nuevas tendencias en MSN Estilo http://estilo.es.msn.com/moda/___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
