most local modifier,GPU,ImBuf and Interface functions are now static.
also fixed an error were the fluid modifier definition and the header didnt have the same number of args.
Used a crazyspace approach (like in edit mode), but only modifiers with
deformMatricies are allowed atm (currently shapekeys and armature modifiers only).
All the rest modifiers had an warning message that they aren't applied because
of sculpt mode. Deformation of multires is also unsupported.
With all this restictions users will always see the actual "layer" (or maybe
mesh state would be more correct word) they are sculpting on.
Internal changes:
- All modifiers could have deformMatricies callback (the same as deformMatriciesEM but
for non-edit mode usage)
- Added function to build crazyspace for sculpting (sculpt_get_deform_matrices), but it
could be generalized for usage in other painting modes (particle edit mode, i.e)
Todo:
- Implement crazyspace correction to support all kinds of deformation modifiers
- Maybe deformation of multires isn't so difficult?
- And maybe we could avoid extra bad-level-stub for ED_sculpt_modifiers_changed
without code duplicating?
Array Modifier: edge indices could be equal to numVerts, causing
bad crashes in derivedmesh. Similar fix to previous here with
face indices. Should poke the coder of this... for now it survives OK.
Crash in Array Modifier. The merging-vertices option
(mysteriously named "First Last") caused invalid indices in
faces to exist. This commit solves the crash, but not the
cause. For that Ben Batt's assistance is needed.
When there are 2+ consecutive deform modifiers, the second modifier was getting incorrect normals, this only showed up for the displace modifier since its the only deform modifier that uses vertex normals.
It would have been easy to fix this by always calculating normals on deform modifiers, but slow.
To fix this I added a function to check if a deform modifier needs normals, so the normal calculation function only runs if there are 2 modifiers in a row and the second uses normals.
* Problem was that the modifier directly accessed ob->derivedFinal, but that wasn't being built if the object was on a different layer. Changed to mesh_get_derived_final.
Notes:
* I fixed this for array and boolean, reported in the bug; there might be other places affected by this mistake. It's an easy fix if so.
* The datamask being passed in isn't especially correct. Possibly we should be accessing the datamask being used to build the array modifier DerivedMesh? Anyway, at least this will get the mesh to show up in the viewport.
patch by Ben Batt (artificer)
Updated patch for 6 or so modifiers added since the patch was written.
- tested with CMake and SCons
- fixed one error were flags were being added to the fluids type.
- remove BKE_simple_deform.h, simple_deform.c, move functions into MOD_simpledeform.c since there were problems with circular deps.
- moved some fluid and boolean functions used by modifiers too.
