[Bf-blender-cvs] [e256bc22503] master: Depsgraph: Add query for whether graph is up to date

[Sergey Sharybin]

Commit: e256bc22503772b4550fadb778e8247dc26f905f
Author: Sergey Sharybin
Date:   Tue May 28 16:05:32 2019 +0200
Branches: master
https://developer.blender.org/rBe256bc22503772b4550fadb778e8247dc26f905f

Depsgraph: Add query for whether graph is up to date

Depsgraph: Only invoke callbacks when there are changes

Only affects when an evaluated dependency graph is requested via
context.

Makes it cheap to call when there are no changes made to the graph

Transform: Ensure depsgraph is evaluated when needed

Fix based on D4455 from Campbell, utilizes some recently
introduced functions and allows to not have any extra checks
in the transform code.

Fixes T61904
Fixes T62135

Reviewers: brecht

Maniphest Tasks: T62135, T61904

Differential Revision: https://developer.blender.org/D4967

===================================================================

M	source/blender/editors/transform/transform_conversions.c

===================================================================

diff --git a/source/blender/editors/transform/transform_conversions.c b/source/blender/editors/transform/transform_conversions.c
index 4037fab2b68..52a3763b836 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -3052,6 +3052,8 @@ static void createTransEditVerts(TransInfo *t)
     if (modifiers_getCageIndex(t->scene, tc->obedit, NULL, 1) != -1) {
       int totleft = -1;
       if (modifiers_isCorrectableDeformed(t->scene, tc->obedit)) {
+        BKE_scene_graph_evaluated_ensure(t->depsgraph, CTX_data_main(t->context));
+
         /* Use evaluated state because we need b-bone cache. */
         Scene *scene_eval = (Scene *)DEG_get_evaluated_id(t->depsgraph, &t->scene->id);
         Object *obedit_eval = (Object *)DEG_get_evaluated_id(t->depsgraph, &tc->obedit->id);
@@ -9651,6 +9653,9 @@ void createTransData(bContext *C, TransInfo *t)
     has_transform_context = false;
   }
   else {
+    /* Needed for correct Object.obmat after duplication, see: T62135. */
+    BKE_scene_graph_evaluated_ensure(t->depsgraph, CTX_data_main(t->context));
+
     createTransObject(C, t);
     countAndCleanTransDataContainer(t);
     t->flag |= T_OBJECT;