forked from bartvdbraak/blender
Fix #29367: Vertex parent regression
Regression was introduced in svn rev40343. It was caused by re-creating EditMesh structure which was needed to solve issues with parenting to vertices after topology changes. This would also erase derivedMesh. Problem reported now is caused by missing derivedMesh which is used to solve parenting and apply inverted matrix on ob->parentin, so parented object used to stay at exactly the same position it used to stay before parenting. Not very nice solving of this issue: re-create derivedMesh after re-creating EditMesh when parenting. Nicer solution would require bigger changes and probably ful lrefactor of this tools.
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@ -1785,6 +1785,7 @@ static void give_parvert(Object *par, int nr, float *vec)
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dm->getVertCo(dm, 0, vec);
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}
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}
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else fprintf(stderr, "%s: DerivedMesh is needed to solve parenting, object position can be wrong now\n", __func__);
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if(em)
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BKE_mesh_end_editmesh(me, em);
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@ -61,6 +61,7 @@
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#include "BKE_constraint.h"
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#include "BKE_curve.h"
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#include "BKE_depsgraph.h"
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#include "BKE_DerivedMesh.h"
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#include "BKE_displist.h"
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#include "BKE_global.h"
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#include "BKE_fcurve.h"
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@ -128,7 +129,11 @@ static int vertex_parent_set_exec(bContext *C, wmOperator *op)
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load_editMesh(scene, obedit);
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make_editMesh(scene, obedit);
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em = BKE_mesh_get_editmesh(me);
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em= BKE_mesh_get_editmesh(me);
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/* derivedMesh might be needed for solving parenting,
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so re-create it here */
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makeDerivedMesh(scene, obedit, em, CD_MASK_BAREMESH);
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eve= em->verts.first;
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while(eve) {
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