Re: [osg-users] Bug in Collada reader
Hi Mark, Thanks for the rest model. I have finally had the time to look into this issue and have resolved it by added a fallback of reading the color array as a Vec3Array if only rgb colours are available. The fix is checked into svn/trunk. Cheers, Robert. On 27 March 2014 at 14:35, Bolstad, Mark bolst...@janelia.hhmi.org wrote: While trying to map some functionality to color per vertex, I came across a bug in that colors aren't loaded properly. At daeReader::resolveMeshArrays:931 (daeRGeometry.cpp) it calls out to createGeometryArrays with types of Vec4Array. If you trace this down into the daeSourceReader call to getArray, you'll find that it reads the data into a Vec3Array, then returns the Vec4Array resulting in no colors. Anyone have a quick fix? (I'm currently attempting to change the array to Vec3, then convert it to a Vec4 in resolve MeshArrays). Attached is a small collada file created in Blender that shows the problem. Mark ___ 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] Bug in Collada reader
from what you are stating if the color array is Vec4Array in creation you should cast to the same in the reading portion - I guess the 4th component is alpha of the color which is the proper way to have the colors stored. So the fix would be casting to Vec4array in the reading part to get valid array object Nick On Thu, Mar 27, 2014 at 3:35 PM, Bolstad, Mark bolst...@janelia.hhmi.orgwrote: While trying to map some functionality to color per vertex, I came across a bug in that colors aren't loaded properly. At daeReader::resolveMeshArrays:931 (daeRGeometry.cpp) it calls out to createGeometryArrays with types of Vec4Array. If you trace this down into the daeSourceReader call to getArray, you'll find that it reads the data into a Vec3Array, then returns the Vec4Array resulting in no colors. Anyone have a quick fix? (I'm currently attempting to change the array to Vec3, then convert it to a Vec4 in resolve MeshArrays). Attached is a small collada file created in Blender that shows the problem. Mark ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Bug in Collada reader
I read the code fast, actually it is the other way around I think. In the reader it should read Vec4Array. Can you point me to the reading part (file:line) where to look? Nick On Thu, Mar 27, 2014 at 4:21 PM, Trajce Nikolov NICK trajce.nikolov.n...@gmail.com wrote: from what you are stating if the color array is Vec4Array in creation you should cast to the same in the reading portion - I guess the 4th component is alpha of the color which is the proper way to have the colors stored. So the fix would be casting to Vec4array in the reading part to get valid array object Nick On Thu, Mar 27, 2014 at 3:35 PM, Bolstad, Mark bolst...@janelia.hhmi.orgwrote: While trying to map some functionality to color per vertex, I came across a bug in that colors aren't loaded properly. At daeReader::resolveMeshArrays:931 (daeRGeometry.cpp) it calls out to createGeometryArrays with types of Vec4Array. If you trace this down into the daeSourceReader call to getArray, you'll find that it reads the data into a Vec3Array, then returns the Vec4Array resulting in no colors. Anyone have a quick fix? (I'm currently attempting to change the array to Vec3, then convert it to a Vec4 in resolve MeshArrays). Attached is a small collada file created in Blender that shows the problem. Mark ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick -- trajce nikolov nick ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
