Re: [osg-users] importing shaders
I would recommend reading the following to get I idea of what OSG has to offer, as it has a LOT to offer NEWS.txt in the source root direcotry OSG Quick Start Guide ( pdf version is free ) http://www.osgbooks.com/books/osg_qs.html OSG Reference Manual ( pdf version is free ) http://www.osgbooks.com/books/osg_refman22.html Visiting http://www.openscenegraph.org/projects/osg/wiki/Support and following the links to examples, tutorials, reference guides etc Gordon Product Manager 3d __ Gordon Tomlinson Email : gtomlinson @ overwatch.textron.com __ -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Julia Guo Sent: Thursday, March 26, 2009 9:14 PM To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] importing shaders hi, That is encouraging to know OSG supports shaders natively (now I saw the shader examples). I have got the 3DS exporter working now. Out of 133 examples I can only find 6 that use CompositeViewer at all Just 6/133 - I take that criticism back then! Many of the examples I looked at coincidentally supported a composite view. Julia -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=9340#9340 ___ 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] importing shaders
hi, That is encouraging to know OSG supports shaders natively (now I saw the shader examples). I have got the 3DS exporter working now. Out of 133 examples I can only find 6 that use CompositeViewer at all Just 6/133 - I take that criticism back then! Many of the examples I looked at coincidentally supported a composite view. Julia -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=9340#9340 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] importing shaders
Hello, Hope it helps, .osg files can have shaders in them. Like the Julia file with the fractals. (It's in the data that comes with the OSG). Guy. I have a model made in 3DS with textures and shaders and I would like to use it within OSG. When I try displaying it with osgviewer.exe the textures are rendered but not the shaders. I know shaders are algorithms, so perhaps they are not exported with the model. Or 3DS may be using a DirectX shader while OSG is OpenGL based. Am I on the right track?? Is there a way to design models with shaders and import them into OSG? Or do I need to manually attach my shaders with osg::Shader (which would make models harder to design)? Julia (P.S. - in learning OSG I found the examples extremely useful, but I feel many have been over engineered so that they obscure their purpose. For instance many of the examples have a flag to use a Composite Viewer instead of the default Viewer. I think it would be ideal for beginners if the examples were stripped down to focus on their core functionality.) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=8134#8134 ___ 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] importing shaders
Hi Julia, On Tue, Mar 10, 2009 at 4:35 AM, Julia Guo osgfo...@tevs.eu wrote: I have a model made in 3DS with textures and shaders and I would like to use it within OSG. When I try displaying it with osgviewer.exe the textures are rendered but not the shaders. I know shaders are algorithms, so perhaps they are not exported with the model. Or 3DS may be using a DirectX shader while OSG is OpenGL based. Am I on the right track?? How are you loading the models? If you are loading them via .3ds then you certainly won't get any shaders as the .3ds format pre-dates any such functionality. You'll certainly needs to the use the OSGExp plugin to 3D Studio. The status of shaders with this plugin I'm unsure about though as I've never used it personally. Is there a way to design models with shaders and import them into OSG? Or do I need to manually attach my shaders with osg::Shader (which would make models harder to design)? As Guy mentioned the .osg format does support shaders, and being an ascii format it's possible to edit it by hand. Not ideal. You can also store the shaders in staight ascii files and load this into osg::Shader. See the osgshaders example. osgVolume also make uses of locally defined as well as ones sourced from OpenSceneGarph-Data/shaders. (P.S. - in learning OSG I found the examples extremely useful, but I feel many have been over engineered so that they obscure their purpose. For instance many of the examples have a flag to use a Composite Viewer instead of the default Viewer. I think it would be ideal for beginners if the examples were stripped down to focus on their core functionality.) Out of 133 examples I can only find 6 that use CompositeViewer at all, and 2 of this specifically demonstrate the CompositeViewer, and the others demonstrate windows integration that applies to both Viewer and CompositeViewer save for the osgpick example that has the two options to show the commonality between the two classes w.r.t picking. So.. if you think many of the examples have both the CompositeViewer and Viewer and this complicates things then please recalibrate your perception by looking at the 127 other examples that do just stick to Viewer and generally keep the viewer code to it's bare minimum, often just three lines of code. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] importing shaders
I have a model made in 3DS with textures and shaders and I would like to use it within OSG. When I try displaying it with osgviewer.exe the textures are rendered but not the shaders. I know shaders are algorithms, so perhaps they are not exported with the model. Or 3DS may be using a DirectX shader while OSG is OpenGL based. Am I on the right track?? Is there a way to design models with shaders and import them into OSG? Or do I need to manually attach my shaders with osg::Shader (which would make models harder to design)? Julia (P.S. - in learning OSG I found the examples extremely useful, but I feel many have been over engineered so that they obscure their purpose. For instance many of the examples have a flag to use a Composite Viewer instead of the default Viewer. I think it would be ideal for beginners if the examples were stripped down to focus on their core functionality.) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=8134#8134 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
