Hi Tobias, I've taken a quick peek and it looks like get_dm() and get_cddm() return copies of the original or derived mesh and therefore leave the originals untouched. So i dont think you will find updated vertices from either of these functions.
It only makes sense so that when you remove the modifier it can revert to the original mesh. Someone else can hopefully clarify. Steve Obbayi ----- Original Message ----- From: "Tobias Oelgarte" <tobias.oelga...@googlemail.com> To: bf-committers@blender.org Sent: Sunday, October 10, 2010 6:46:50 PM GMT +03:00 Iraq Subject: [Bf-committers] derived mesh in modifier stack Hi, As far as i found out, a DerivedMesh is created as soon as some modifier needs to construct its own geometry. There are the utility functions get_dm() and get_cddm() in MOD_util. What is their purpose? I looked at what they are doing and it looked like get_cddm() would ensure a DerivedMesh is created. But somehow it does not update the vertices and normals. How im supposed to access the vertex normals that would exist after the last modifier worked on them, before my own modifier, if it is just a deform modifier, that does not deliver a new DerivedMesh? In other words: Can i update the DerivedMesh passed to deformVerts()? Or is there a better way to access the current normal data? Vertices seam not to be updated after get_dm() or get_cddm(). Best wishes Tobias Oelgarte _______________________________________________ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers _______________________________________________ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers