Hi, If you change data often, you can declare the vertex attribute array usage as "STREAM_DRAW".
And to pass 4x4 matrices, you can do this : - declare 4 vertex attributes array in OSG - fill them with the 4 colums of your matrices - bind them to attributes units 4, 5, 6, 7 (for example) - in your shader, you can read "mat4" type attribute on unit 4 But sometimes, passing full mat4 to shader can be slower than passing less data (only a vec3 for a position) and compute the matrix in the shader. Cheers, Aurelien ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=56038#56038 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
