Re: [osg-users] Paint splashes / How do I decal?
Hi, Ok wow but what does it mean? Screen space sounds evil. I can't really get any hard results on Google for it. Basically the first hit gives an implementation guideline and links to the other techniques I've mentioned: http://martindevans.me/game-development/2015/02/27/Drawing-Stuff-On-Other-Stuff-With-Deferred-Screenspace-Decals/ where the latter works if you have at least a depth buffer in your FBO.. Cheers Sebastian Thank you! Cheers, Johny -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=70447#70447 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Paint splashes / How do I decal?
Hi, Ok wow but what does it mean? Screen space sounds evil. I can't really get any hard results on Google for it. Thank you! Cheers, Johny -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=70447#70447 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Paint splashes / How do I decal?
Hi Johny And why not a geometry approach? You can totally use 3d models, but that might induce z-fighting, sorting problems etc. Another option is of course using a world-space spanning texture per object-instance and managing drawing to this texture at the right spots. This isn't very memory friendly however. It seemed to me, that you have a multipass-shader implementation anyways so using screen space decals might be the best option. (And I've got good experiences using it) Cheers Sebastian SMesserschmidt wrote: Hi Johny, Here's Johny! I'd like to know how to pick a 3d point in my model onto which a decal will nearly wrap itself around to. Am I using the right word here, or does Open Scene Graph not have this feature? Before I'm rigging my app with a custom decal, I'd like to know what's available, or what tools I can already work with. There is no specific API, but you can use projective texturing or screenspace decals (using FBO and shaders). Cheers Sebastian Thank is great. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=70417#70417 ___ osg-users mailing list http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Post generated by Mail2Forum -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=70419#70419 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Paint splashes / How do I decal?
And why not a geometry approach? SMesserschmidt wrote: > Hi Johny, > > > > Here's Johny! > > > > I'd like to know how to pick a 3d point in my model onto which a decal will > > nearly wrap itself around to. Am I using the right word here, or does Open > > Scene Graph not have this feature? Before I'm rigging my app with a custom > > decal, I'd like to know what's available, or what tools I can already work > > with. > > > There is no specific API, but you can use projective texturing or > screenspace decals (using FBO and shaders). > > Cheers > Sebastian > > > > > Thank is great. > > > > -- > > Read this topic online here: > > http://forum.openscenegraph.org/viewtopic.php?p=70417#70417 > > > > > > > > > > > > ___ > > osg-users mailing list > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > ___ > osg-users mailing list > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > -- > Post generated by Mail2Forum -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=70419#70419 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Paint splashes / How do I decal?
Hi Johny, Here's Johny! I'd like to know how to pick a 3d point in my model onto which a decal will nearly wrap itself around to. Am I using the right word here, or does Open Scene Graph not have this feature? Before I'm rigging my app with a custom decal, I'd like to know what's available, or what tools I can already work with. There is no specific API, but you can use projective texturing or screenspace decals (using FBO and shaders). Cheers Sebastian Thank is great. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=70417#70417 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Paint splashes / How do I decal?
Here's Johny! I'd like to know how to pick a 3d point in my model onto which a decal will nearly wrap itself around to. Am I using the right word here, or does Open Scene Graph not have this feature? Before I'm rigging my app with a custom decal, I'd like to know what's available, or what tools I can already work with. Thank is great. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=70417#70417 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
