Hi, since no one could help me with this in the irc channel, i try to ask on the ml.
In the renderer I am not quit sure, which coordinates are used for actual stuff like shading. Just as an example lamp_get_visibility takes a coordinate, to check, if from this point a lightsource is visible. Those aren't global coordinates in world space, so I assume that those are in camera space? My issue, what I try to do is to map local coordinates from an object to these coordinates (more precisely in vol_precache_part) to call functions like point_inside_obi() and vol_get_scattering(), but this is more a general question, and hasn't much to do with the volume rendering. So i assumed, that I have to transform this coordinates by the object matrix and the viewingmatrix, so I multiply by obi->ob->obmat and R.viewmat. But this seems to be wrong. So how do I transform from local space to this coordinates and also vise versa? thx, aurel _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
