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Add utility functions to get different "levels" of evaluated/original mesh

This commit is contained in:
Sergey Sharybin 2018-06-04 15:48:37 +02:00
parent 2b22a61152
commit 0e8edbbc01
2 changed files with 59 additions and 0 deletions
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3
source/blender/blenkernel/BKE_object.h
View File

@ -274,6 +274,9 @@ void BKE_object_sculpt_modifiers_changed(struct Object *ob);
int BKE_object_obdata_texspace_get(struct Object *ob, short **r_texflag, float **r_loc, float **r_size, float **r_rot);
struct Mesh *BKE_object_get_evaluated_mesh(const struct Depsgraph *depsgraph, struct Object *ob);
struct Mesh *BKE_object_get_final_mesh(struct Object *object);
struct Mesh *BKE_object_get_unmodified_mesh(struct Object *object);
struct Mesh *BKE_object_get_original_mesh(struct Object *object);
int BKE_object_insert_ptcache(struct Object *ob);
void BKE_object_delete_ptcache(struct Object *ob, int index);

56
source/blender/blenkernel/intern/object.c
View File

@ -2851,6 +2851,62 @@ Mesh *BKE_object_get_evaluated_mesh(const Depsgraph *depsgraph, Object *ob)
return ob_eval->runtime.mesh_eval;
}
/* Get object's mesh with all modifiers applied. */
Mesh *BKE_object_get_final_mesh(Object *object)
{
if (object->runtime.mesh_eval != NULL) {
BLI_assert((object->id.tag & LIB_TAG_COPIED_ON_WRITE) != 0);
BLI_assert(object->runtime.mesh_eval == object->data);
BLI_assert((object->runtime.mesh_eval->id.tag & LIB_TAG_COPIED_ON_WRITE_EVAL_RESULT) != 0);
return object->runtime.mesh_eval;
}
/* Wasn't evaluated yet. */
return object->data;
}
/* Get mesh which is not affected by modifiers:
* - For original objects it will be same as object->data, and it is a mesh
* which is in the corresponding bmain.
* - For copied-on-write objects it will give pointer to a copied-on-write
* mesh which corresponds to original object's mesh.
*/
Mesh *BKE_object_get_unmodified_mesh(Object *object)
{
if (object->runtime.mesh_orig != NULL) {
BLI_assert(object->id.tag & LIB_TAG_COPIED_ON_WRITE);
BLI_assert(object->id.orig_id != NULL);
BLI_assert(object->runtime.mesh_orig->id.orig_id ==
((Object*)object->id.orig_id)->data);
Mesh *result = object->runtime.mesh_orig;
BLI_assert((result->id.tag & LIB_TAG_COPIED_ON_WRITE) != 0);
BLI_assert((result->id.tag & LIB_TAG_COPIED_ON_WRITE_EVAL_RESULT) == 0);
return result;
}
BLI_assert((object->id.tag & LIB_TAG_COPIED_ON_WRITE) == 0);
return object->data;
}
/* Get a mesh which corresponds to very very original mesh from bmain.
* - For original objects it will be object->data.
* - For evaluated objects it will be same mesh as corresponding original
* object uses as data.
*/
Mesh *BKE_object_get_original_mesh(Object *object)
{
Mesh *result = NULL;
if (object->id.orig_id == NULL) {
BLI_assert((object->id.tag & LIB_TAG_COPIED_ON_WRITE) == 0);
result = object->data;
}
else {
BLI_assert((object->id.tag & LIB_TAG_COPIED_ON_WRITE) != 0);
result = ((Object*)object->id.orig_id)->data;
}
BLI_assert(result != NULL);
BLI_assert((result->id.tag & (LIB_TAG_COPIED_ON_WRITE | LIB_TAG_COPIED_ON_WRITE_EVAL_RESULT)) == 0);
return result;
}
static int pc_cmp(const void *a, const void *b)
{
const LinkData *ad = a, *bd = b;