Hi, The answer it that during sculpting, the sculpt stroke does not propagate on the data on the zero level. This means that the mapping between displaced and base mesh breaks on this level and the algorithm that does the multires baking breaks there. My guess is that this is an architectural issue similar to "modifiers are non-destructive"?
However, IMO, we should if possible make an exception to the multires modifier. Being able to bake to level zero is very important. There are two solutions I see here. Either make the strokes touch mesh data directly, or use an apply base modifier prior to baking, maybe with a warning that baking will alter the mesh data. Of course this requires an "Apply to Base" operator that actually works which currently is not the case. We had a few reports in our tracker where it resulted in spikes on the mesh (apparently some divide by small number errors). _______________________________________________ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers