A handle refcount is here to avoid freeing of the GPUVertBuf datablock
if it is still referenced somewhere else.
This does not prevent deleting the actual data. This is to avoid too
much zombie data usage.
This is in order to avoid most hacks inside `draw_instance_data.c`.
It was impossible for drivers to use shape key properties, modifiers
generate a new mesh. After mesh evaluation the shape keys are no longer
necessary, and because of this the `key` pointer was not copied. As
drivers work on evaluated data, however, they do need this `key`
pointer.
This commit makes the `key` pointer available in evaluated meshes, but
this is somewhat dangerous. There was an explicit reason why the key on
result was kept at null pointer: to have the evaluated mesh in a
consistent state. Assigning this pointer makes it potentially
inconsistent, as the evaluated mesh and the original shape key may have
different topologies.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D7785
It was always possible to set it to zero by typing in the value.
This new soft limit is more consistent with the fluid cache
and the Scene.frame_start property.
This was a regression in deaff945d0 which skips copying a mesh.
Dupli-verts/faces were not updated to account for this.
This supports iterating over edit-mesh vertices & faces,
since falling back to a full copy (as we do in some places)
will be slow while transforming geometry.
This commit looks as if it would change behavior with orcos,
since any edit-mesh deformation causes them to be assigned.
However in practice there is no functional change, details in comments.
Replace the evaluated mesh with VertexDupliData.mvert since only
vertices are used. This makes dupli-vert similar to how dupli-face
was already working.
When using constant falloff symmetry was working fine because the same
deformation is applied twice on the same vertices. When using no
constant falloffs, the deformation is different between symmetry passes,
so vertices need to be separated by symmetry areas to get the right
deformation from its symmetry pass without being overwriten by the next
one.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D8541
This adds the boundary_falloff_type and boundary_offset to control how the
falloff of the Boundary Brush is applied.
Boundary Origin Offset is the same concept as the Pose Origin offset in
the Pose Brush. It is a multiplier that adds extra length to the brush
radius to locate the deformation pivot further from the boundary without
affecting the falloff.
The Falloff type includes Constant (previous default), brush radius, loop
and loop and invert. Loop and Loop and Invert can be used to create
deformation patterns in a mesh.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D8526
