diff options
author | Pablo Dobarro <pablodp606@gmail.com> | 2020-04-30 17:47:23 +0300 |
---|---|---|
committer | Pablo Dobarro <pablodp606@gmail.com> | 2020-04-30 17:49:56 +0300 |
commit | f28875a998d47d4ce49b852598c14f687fa63a55 (patch) | |
tree | 893e34e4b3c79a9872838bf692c0ccb98510d9a4 /source/blender/blenkernel/intern/multires_reshape_util.c | |
parent | d4c547b7bd89ca1da710a437f164fe3ca84bb1a6 (diff) |
Multires: Unsubdivide and Rebuild Subdivisions
This implements the main unsubdivide algorithm which rebuilds a base mesh and extracts the grid's data from a high resolution mesh.
It includes the Rebuild Subdivisions operator, which generates all subdivision levels down to the level 0 base mesh.
It supports:
- Rebuilding an arbitrary number of levels (Unsubdivide) or as many levels as possible down to level 0 in a single step (Rebuild Subdivisions).
- Rebuilding with already existing grids.
- Meshes with n-gons and triangles
- Meshes with more than 2 faces per edge
- Base mesh made completely out of triangles
- Meshes without poles
- Meshes with multiple disconnected elements at the same subdivision level
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D7372
Diffstat (limited to 'source/blender/blenkernel/intern/multires_reshape_util.c')
-rw-r--r-- | source/blender/blenkernel/intern/multires_reshape_util.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/source/blender/blenkernel/intern/multires_reshape_util.c b/source/blender/blenkernel/intern/multires_reshape_util.c index 2313aafab30..4d54b7b6e87 100644 --- a/source/blender/blenkernel/intern/multires_reshape_util.c +++ b/source/blender/blenkernel/intern/multires_reshape_util.c @@ -152,6 +152,39 @@ static bool context_verify_or_free(MultiresReshapeContext *reshape_context) return is_valid; } +bool multires_reshape_context_create_from_base_mesh(MultiresReshapeContext *reshape_context, + Depsgraph *depsgraph, + Object *object, + MultiresModifierData *mmd) +{ + context_zero(reshape_context); + + const bool use_render_params = false; + Scene *scene_eval = DEG_get_evaluated_scene(depsgraph); + Mesh *base_mesh = (Mesh *)object->data; + + reshape_context->depsgraph = depsgraph; + reshape_context->object = object; + reshape_context->mmd = mmd; + + reshape_context->base_mesh = base_mesh; + + reshape_context->subdiv = multires_reshape_create_subdiv(NULL, object, mmd); + reshape_context->need_free_subdiv = true; + + reshape_context->reshape.level = multires_get_level( + scene_eval, object, mmd, use_render_params, true); + reshape_context->reshape.grid_size = BKE_subdiv_grid_size_from_level( + reshape_context->reshape.level); + + reshape_context->top.level = mmd->totlvl; + reshape_context->top.grid_size = BKE_subdiv_grid_size_from_level(reshape_context->top.level); + + context_init_commoon(reshape_context); + + return context_verify_or_free(reshape_context); +} + bool multires_reshape_context_create_from_object(MultiresReshapeContext *reshape_context, Depsgraph *depsgraph, Object *object, @@ -272,9 +305,9 @@ void multires_reshape_context_free(MultiresReshapeContext *reshape_context) multires_reshape_free_original_grids(reshape_context); - MEM_freeN(reshape_context->face_start_grid_index); - MEM_freeN(reshape_context->ptex_start_grid_index); - MEM_freeN(reshape_context->grid_to_face_index); + MEM_SAFE_FREE(reshape_context->face_start_grid_index); + MEM_SAFE_FREE(reshape_context->ptex_start_grid_index); + MEM_SAFE_FREE(reshape_context->grid_to_face_index); } /** \} */ |