archive/blender-archive
Archived
1
1
Fork 0
Code Pull Requests Packages Activity

T75631: New multires shrinkage problem

Browse Source 
The old Subdivide button was behaving as if subdivision modifier was
applied on top of the multires. This was the source of shrinkage since
the behavior of the limit surface: limit surface of a sparse point
from another limit surface makes final result appear smaller.

The new behavior is based on propagating delta against base mesh's
limit surface to the top level. Effectively, this is as if we've
sculpted on old top level and then propagated to the new top level.

Differential Revision: https://developer.blender.org/D7505
This commit is contained in:
Sergey Sharybin
2020-04-23 18:20:18 +02:00
parent 1625b7c37c
commit 4542b50afc
3 changed files with 13 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
source/blender/blenkernel/intern/multires_reshape.c
View File

@@ -202,7 +202,13 @@ void multiresModifier_subdivide_to_level(struct Object *object,
multires_reshape_store_original_grids(&reshape_context);
multires_reshape_ensure_grids(coarse_mesh, reshape_context.top.level);
multires_reshape_assign_final_coords_from_orig_mdisps(&reshape_context);
multires_reshape_smooth_object_grids(&reshape_context);
/* Free original grids which makes it so smoothing with details thinks all the details were
* added against base mesh's limit surface. This is similar behavior to as if we've done all
* displacement in sculpt mode at the old top level and then propagated to the new top level. */
multires_reshape_free_original_grids(&reshape_context);
multires_reshape_smooth_object_grids_with_details(&reshape_context);
multires_reshape_object_grids_to_tangent_displacement(&reshape_context);
multires_reshape_context_free(&reshape_context);