Commit: 948f4e8c943e2fb3ef9f9211965f9cdf1db9ed3d
Author: Sergey Sharybin
Date:   Wed Apr 4 11:55:06 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB948f4e8c943e2fb3ef9f9211965f9cdf1db9ed3d

Depsgraph: Get pchan index from correct pose

This code should be replaced with evaluation-time ID block expansion,
but before that it will be helpful to get old design to work again.

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

M       source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc

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

diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc 
b/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc
index 8a2cab2d0fb..4600bfedf28 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc
@@ -85,6 +85,7 @@ void DepsgraphNodeBuilder::build_ik_pose(Object *object,
                                          bPoseChannel *pchan,
                                          bConstraint *con)
 {
+       Object *object_cow = get_cow_datablock(object);
        bKinematicConstraint *data = (bKinematicConstraint *)con->data;
 
        /* Find the chain's root. */
@@ -99,14 +100,14 @@ void DepsgraphNodeBuilder::build_ik_pose(Object *object,
                return;
        }
 
-       int rootchan_index = BLI_findindex(&object->pose->chanbase, rootchan);
+       int rootchan_index = BLI_findindex(&object_cow->pose->chanbase, 
rootchan);
        BLI_assert(rootchan_index != -1);
        /* Operation node for evaluating/running IK Solver. */
        add_operation_node(&object->id, DEG_NODE_TYPE_EVAL_POSE, rootchan->name,
                           function_bind(BKE_pose_iktree_evaluate,
                                         _1,
                                         get_cow_datablock(scene_),
-                                        get_cow_datablock(object),
+                                        object_cow,
                                         rootchan_index),
                           DEG_OPCODE_POSE_IK_SOLVER);
 }
@@ -116,6 +117,7 @@ void DepsgraphNodeBuilder::build_splineik_pose(Object 
*object,
                                                bPoseChannel *pchan,
                                                bConstraint *con)
 {
+       Object *object_cow = get_cow_datablock(object);
        bSplineIKConstraint *data = (bSplineIKConstraint *)con->data;
 
        /* Find the chain's root. */
@@ -125,13 +127,13 @@ void DepsgraphNodeBuilder::build_splineik_pose(Object 
*object,
         * Store the "root bone" of this chain in the solver, so it knows where 
to
         * start.
         */
-       int rootchan_index = BLI_findindex(&object->pose->chanbase, rootchan);
+       int rootchan_index = BLI_findindex(&object_cow->pose->chanbase, 
rootchan);
        BLI_assert(rootchan_index != -1);
        add_operation_node(&object->id, DEG_NODE_TYPE_EVAL_POSE, rootchan->name,
                           function_bind(BKE_pose_splineik_evaluate,
                                         _1,
                                         get_cow_datablock(scene_),
-                                        get_cow_datablock(object),
+                                        object_cow,
                                         rootchan_index),
                           DEG_OPCODE_POSE_SPLINE_IK_SOLVER);
 }

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