Re: [osg-users] GLSL shaders and projective texturing

2011-09-29 Thread Per Nordqvist
, September 28, 2011 4:40 PM *To:* OpenSceneGraph Users *Subject:* Re: [osg-users] GLSL shaders and projective texturing ** ** Brad, I once had the same issue; calcuating my texgen matrix like this worked:** ** ** ** texGenMat = modelViewMat * projectionMat

Re: [osg-users] GLSL shaders and projective texturing

2011-09-29 Thread J.P. Delport
I think Paul Martz did already. http://thread.gmane.org/gmane.comp.graphics.openscenegraph.cvs/9237/focus=9304 jp On 29/09/2011 13:46, Per Nordqvist wrote: I also struggled with this issue once and I believe osgspotlight suffers from exactly the same quadrant defect if you look closely. Would

Re: [osg-users] GLSL shaders and projective texturing

2011-09-29 Thread Brad Colbert
, 2011 5:19 AM To: OpenSceneGraph Users Subject: Re: [osg-users] GLSL shaders and projective texturing I think Paul Martz did already. http://thread.gmane.org/gmane.comp.graphics.openscenegraph.cvs/9237/focus=9304 jp On 29/09/2011 13:46, Per Nordqvist wrote: I also struggled with this issue once

Re: [osg-users] GLSL shaders and projective texturing

2011-09-28 Thread Chris 'Xenon' Hanson
On 9/27/2011 7:21 PM, Brad Colbert wrote: I am closer! Looks like the other example I have is FFP not GLSL. Here's a working GLSL implementation (not OSG) that should be relatively easy to feed with OSG uniforms and such: http://www.ozone3d.net/tutorials/glsl_texturing_p08.php#part_8 --

Re: [osg-users] GLSL shaders and projective texturing

2011-09-28 Thread Brad Colbert
- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Chris 'Xenon' Hanson Sent: Wednesday, September 28, 2011 3:31 PM To: OpenSceneGraph Users Subject: Re: [osg-users] GLSL shaders and projective texturing On 9/27/2011 7:21 PM, Brad

Re: [osg-users] GLSL shaders and projective texturing

2011-09-28 Thread Glenn Waldron
it out. -B -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto: osg-users-boun...@lists.openscenegraph.org] On Behalf Of Chris 'Xenon' Hanson Sent: Wednesday, September 28, 2011 3:31 PM To: OpenSceneGraph Users Subject: Re: [osg-users] GLSL shaders

Re: [osg-users] GLSL shaders and projective texturing

2011-09-27 Thread Chris 'Xenon' Hanson
On 9/27/2011 2:16 PM, Brad Colbert wrote: Hi folks, I'm looking for a complete example showing projective texturing with GLSL shaders in OSG. I'm simply trying to implement a spotlight just like the osgspotlight example. What I've found doesn't quite paint the whole picture for me.

Re: [osg-users] GLSL shaders and projective texturing

2011-09-27 Thread Brad Colbert
@01CC7D27.5588D890] -B -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Chris 'Xenon' Hanson Sent: Tuesday, September 27, 2011 1:44 PM To: OpenSceneGraph Users Subject: Re: [osg-users] GLSL shaders

Re: [osg-users] GLSL shaders and projective texturing

2011-09-27 Thread Brad Colbert
To add more to this: I've adapted this to where the camera is the projector (ie the image is projected from the viewpoint, well, at least that is the idea): http://www.jotschi.de/?p=378 and I would like to say I'm close, but I'm still a ways away from a solution. I do see the clock projected