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Object: support 'Affect Parents' for snap/clear transform

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Resolves T69450
This commit is contained in:
Campbell Barton
2020-02-01 13:34:27 +11:00
parent 253dbdbb39
commit 3ba5461af0
6 changed files with 452 additions and 267 deletions
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289
source/blender/editors/object/object_utils.c
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@@ -34,6 +34,9 @@
#include "BKE_action.h"
#include "BKE_editmesh.h"
#include "BKE_lattice.h"
#include "BKE_scene.h"
#include "DEG_depsgraph_query.h"
#include "WM_types.h"
@@ -41,6 +44,8 @@
#include "ED_curve.h"
#include "ED_object.h" /* own include */
#include "MEM_guardedalloc.h"
/* -------------------------------------------------------------------- */
/** \name Active Element Center
* \{ */
@@ -142,3 +147,287 @@ bool ED_object_calc_active_center(Object *ob, const bool select_only, float r_ce
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Object Child Skip
*
* Don't transform unselected children, this is done using the parent inverse matrix.
*
* \note The complex logic here is caused by mixed selection within a single selection chain,
* otherwise we only need #XFORM_OB_SKIP_CHILD_PARENT_IS_XFORM for single objects.
*
* \{ */
struct XFormObjectSkipChild_Container {
GHash *obchild_in_obmode_map;
};
struct XFormObjectSkipChild {
float obmat_orig[4][4];
float parent_obmat_orig[4][4];
float parent_obmat_inv_orig[4][4];
float parent_recurse_obmat_orig[4][4];
float parentinv_orig[4][4];
Object *ob_parent_recurse;
int mode;
};
struct XFormObjectSkipChild_Container *ED_object_xform_skip_child_container_create(void)
{
struct XFormObjectSkipChild_Container *xcs = MEM_callocN(sizeof(*xcs), __func__);
if (xcs->obchild_in_obmode_map == NULL) {
xcs->obchild_in_obmode_map = BLI_ghash_ptr_new(__func__);
}
return xcs;
}
void ED_object_xform_skip_child_container_item_ensure_from_array(
struct XFormObjectSkipChild_Container *xcs,
ViewLayer *view_layer,
Object **objects,
uint objects_len)
{
GSet *objects_in_transdata = BLI_gset_ptr_new_ex(__func__, objects_len);
for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
Object *ob = objects[ob_index];
BLI_gset_add(objects_in_transdata, ob);
}
for (Base *base = view_layer->object_bases.first; base; base = base->next) {
Object *ob = base->object;
if (ob->parent != NULL) {
if (!BLI_gset_haskey(objects_in_transdata, ob)) {
if (BLI_gset_haskey(objects_in_transdata, ob->parent)) {
ED_object_xform_skip_child_container_item_ensure(
xcs, ob, NULL, XFORM_OB_SKIP_CHILD_PARENT_IS_XFORM);
}
}
else {
if (!BLI_gset_haskey(objects_in_transdata, ob->parent)) {
Object *ob_parent_recurse = ob->parent;
if (ob_parent_recurse != NULL) {
while (ob_parent_recurse != NULL) {
if (BLI_gset_haskey(objects_in_transdata, ob_parent_recurse)) {
break;
}
ob_parent_recurse = ob_parent_recurse->parent;
}
if (ob_parent_recurse) {
ED_object_xform_skip_child_container_item_ensure(
xcs, ob, ob_parent_recurse, XFORM_OB_SKIP_CHILD_PARENT_APPLY);
}
}
}
}
}
}
for (Base *base = view_layer->object_bases.first; base; base = base->next) {
Object *ob = base->object;
if (BLI_gset_haskey(objects_in_transdata, ob)) {
/* pass. */
}
else if (ob->parent != NULL) {
if (BLI_gset_haskey(objects_in_transdata, ob->parent)) {
if (!BLI_gset_haskey(objects_in_transdata, ob)) {
ED_object_xform_skip_child_container_item_ensure(
xcs, ob, NULL, XFORM_OB_SKIP_CHILD_PARENT_IS_XFORM);
}
}
}
}
BLI_gset_free(objects_in_transdata, NULL);
}
void ED_object_xform_skip_child_container_destroy(struct XFormObjectSkipChild_Container *xcs)
{
BLI_ghash_free(xcs->obchild_in_obmode_map, NULL, MEM_freeN);
MEM_freeN(xcs);
}
void ED_object_xform_skip_child_container_item_ensure(struct XFormObjectSkipChild_Container *xcs,
Object *ob,
Object *ob_parent_recurse,
int mode)
{
void **xf_p;
if (!BLI_ghash_ensure_p(xcs->obchild_in_obmode_map, ob, &xf_p)) {
struct XFormObjectSkipChild *xf = MEM_mallocN(sizeof(*xf), __func__);
copy_m4_m4(xf->parentinv_orig, ob->parentinv);
copy_m4_m4(xf->obmat_orig, ob->obmat);
copy_m4_m4(xf->parent_obmat_orig, ob->parent->obmat);
invert_m4_m4(xf->parent_obmat_inv_orig, ob->parent->obmat);
if (ob_parent_recurse) {
copy_m4_m4(xf->parent_recurse_obmat_orig, ob_parent_recurse->obmat);
}
xf->mode = mode;
xf->ob_parent_recurse = ob_parent_recurse;
*xf_p = xf;
}
}
void ED_object_xform_skip_child_container_update_all(struct XFormObjectSkipChild_Container *xcs,
struct Main *bmain,
struct Depsgraph *depsgraph)
{
BKE_scene_graph_evaluated_ensure(depsgraph, bmain);
GHashIterator gh_iter;
GHASH_ITER (gh_iter, xcs->obchild_in_obmode_map) {
Object *ob = BLI_ghashIterator_getKey(&gh_iter);
struct XFormObjectSkipChild *xf = BLI_ghashIterator_getValue(&gh_iter);
/* The following blocks below assign 'dmat'. */
float dmat[4][4];
if (xf->mode == XFORM_OB_SKIP_CHILD_PARENT_IS_XFORM) {
/* Parent is transformed, this isn't so compensate. */
Object *ob_parent_eval = DEG_get_evaluated_object(depsgraph, ob->parent);
mul_m4_m4m4(dmat, xf->parent_obmat_inv_orig, ob_parent_eval->obmat);
invert_m4(dmat);
}
else if (xf->mode == XFORM_OB_SKIP_CHILD_PARENT_IS_XFORM_INDIRECT) {
/* Calculate parent matrix (from the root transform). */
Object *ob_parent_recurse_eval = DEG_get_evaluated_object(depsgraph, xf->ob_parent_recurse);
float parent_recurse_obmat_inv[4][4];
invert_m4_m4(parent_recurse_obmat_inv, ob_parent_recurse_eval->obmat);
mul_m4_m4m4(dmat, xf->parent_recurse_obmat_orig, parent_recurse_obmat_inv);
invert_m4(dmat);
float parent_obmat_calc[4][4];
mul_m4_m4m4(parent_obmat_calc, dmat, xf->parent_obmat_orig);
/* Apply to the parent inverse matrix. */
mul_m4_m4m4(dmat, xf->parent_obmat_inv_orig, parent_obmat_calc);
invert_m4(dmat);
}
else {
BLI_assert(xf->mode == XFORM_OB_SKIP_CHILD_PARENT_APPLY);
/* Transform this - without transform data. */
Object *ob_parent_recurse_eval = DEG_get_evaluated_object(depsgraph, xf->ob_parent_recurse);
float parent_recurse_obmat_inv[4][4];
invert_m4_m4(parent_recurse_obmat_inv, ob_parent_recurse_eval->obmat);
mul_m4_m4m4(dmat, xf->parent_recurse_obmat_orig, parent_recurse_obmat_inv);
invert_m4(dmat);
float obmat_calc[4][4];
mul_m4_m4m4(obmat_calc, dmat, xf->obmat_orig);
/* obmat_calc is just obmat. */
/* Get the matrices relative to the parent. */
float obmat_parent_relative_orig[4][4];
float obmat_parent_relative_calc[4][4];
float obmat_parent_relative_inv_orig[4][4];
mul_m4_m4m4(obmat_parent_relative_orig, xf->parent_obmat_inv_orig, xf->obmat_orig);
mul_m4_m4m4(obmat_parent_relative_calc, xf->parent_obmat_inv_orig, obmat_calc);
invert_m4_m4(obmat_parent_relative_inv_orig, obmat_parent_relative_orig);
/* Apply to the parent inverse matrix. */
mul_m4_m4m4(dmat, obmat_parent_relative_calc, obmat_parent_relative_inv_orig);
}
mul_m4_m4m4(ob->parentinv, dmat, xf->parentinv_orig);
DEG_id_tag_update(&ob->id, ID_RECALC_TRANSFORM);
}
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Object Data Transform Container
*
* Use to implement 'Affect Only Origins' feature.
*
* \{ */
struct XFormObjectData_Container {
GHash *obdata_in_obmode_map;
};
struct XFormObjectData_Extra {
Object *ob;
float obmat_orig[4][4];
struct XFormObjectData *xod;
};
void ED_object_data_xform_container_item_ensure(struct XFormObjectData_Container *xds, Object *ob)
{
if (xds->obdata_in_obmode_map == NULL) {
xds->obdata_in_obmode_map = BLI_ghash_ptr_new(__func__);
}
void **xf_p;
if (!BLI_ghash_ensure_p(xds->obdata_in_obmode_map, ob->data, &xf_p)) {
struct XFormObjectData_Extra *xf = MEM_mallocN(sizeof(*xf), __func__);
copy_m4_m4(xf->obmat_orig, ob->obmat);
xf->ob = ob;
/* Result may be NULL, that's OK. */
xf->xod = ED_object_data_xform_create(ob->data);
*xf_p = xf;
}
}
/**
* This may be called multiple times with the same data.
* Each time, the original transformations are re-applied, instead of accumulating the changes.
*/
void ED_object_data_xform_container_update_all(struct XFormObjectData_Container *xds,
struct Main *bmain,
Depsgraph *depsgraph)
{
if (xds->obdata_in_obmode_map == NULL) {
return;
}
BKE_scene_graph_evaluated_ensure(depsgraph, bmain);
GHashIterator gh_iter;
GHASH_ITER (gh_iter, xds->obdata_in_obmode_map) {
ID *id = BLI_ghashIterator_getKey(&gh_iter);
struct XFormObjectData_Extra *xf = BLI_ghashIterator_getValue(&gh_iter);
if (xf->xod == NULL) {
continue;
}
Object *ob_eval = DEG_get_evaluated_object(depsgraph, xf->ob);
float imat[4][4], dmat[4][4];
invert_m4_m4(imat, xf->obmat_orig);
mul_m4_m4m4(dmat, imat, ob_eval->obmat);
invert_m4(dmat);
ED_object_data_xform_by_mat4(xf->xod, dmat);
if (xf->ob->type == OB_ARMATURE) {
/* TODO: none of the current flags properly update armatures, needs investigation. */
DEG_id_tag_update(id, 0);
}
else {
DEG_id_tag_update(id, ID_RECALC_GEOMETRY);
}
}
}
/** Callback for #GHash free. */
static void trans_obdata_in_obmode_free_elem(void *xf_p)
{
struct XFormObjectData_Extra *xf = xf_p;
if (xf->xod) {
ED_object_data_xform_destroy(xf->xod);
}
MEM_freeN(xf);
}
struct XFormObjectData_Container *ED_object_data_xform_container_create(void)
{
struct XFormObjectData_Container *xds = MEM_callocN(sizeof(*xds), __func__);
xds->obdata_in_obmode_map = BLI_ghash_ptr_new(__func__);
return xds;
}
void ED_object_data_xform_container_destroy(struct XFormObjectData_Container *xds)
{
BLI_ghash_free(xds->obdata_in_obmode_map, NULL, trans_obdata_in_obmode_free_elem);
MEM_freeN(xds);
}
/** \} */