Re: [osg-users] culling and vertex shaders still a problem

Hi, I returned to this problem last week and just posted a potential fix for this in http://forum.openscenegraph.org/viewtopic.php?p=55941 Cheers, Anton -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=55943#55943

Re: [osg-users] culling and vertex shaders still a problem

Hi if you dont need camera view matrix in shaders (i believe you need only projection matrix for your task): you can place this geode under matrix transform with reference frame set to ABSOLUTE_RF, and position it somewhere in front of camera with identity view matrix, this should solve

Re: [osg-users] culling and vertex shaders still a problem

Paul Martz wrote: One solution would be to disable culling on the Geode (as you did above) and place it under its own dedicated Camera. Kind of heavyweight, though. Since I need the projection from the original camera (view direction field of view) I'd have to copy this to the shader.

Re: [osg-users] culling and vertex shaders still a problem

hybr wrote: Hi if you dont need camera view matrix in shaders (i believe you need only projection matrix for your task): you can place this geode under matrix transform with reference frame set to ABSOLUTE_RF, and position it somewhere in front of camera with identity view matrix, this

[osg-users] culling and vertex shaders still a problem

Hi, I need to disable culling on a geode which implements a skydome/plane as a shader. The problem is that the vertex shader places the existing vertices screen-aligned at the far plane, but OSG still thinks they are in their original positions. This problem as already been discussed - but

Re: [osg-users] culling and vertex shaders still a problem

Agreed, keeping Geometry out of the scene graph's inherent desire to deal with it as spatial data is a serious issue in OSG. One solution would be to disable culling on the Geode (as you did above) and place it under its own dedicated Camera. Kind of heavyweight, though. Another possibility