Commit: 29595334f06107c484e928358715b55dac3e840d
Author: Joshua Leung
Date:   Fri May 18 17:07:41 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB29595334f06107c484e928358715b55dac3e840d

COW Fix: POSE_OT_armature_apply (Apply Pose as Rest Pose) now works with COW

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

M       source/blender/editors/armature/pose_transform.c

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

diff --git a/source/blender/editors/armature/pose_transform.c 
b/source/blender/editors/armature/pose_transform.c
index 1da8e24bd00..af9d94c0bac 100644
--- a/source/blender/editors/armature/pose_transform.c
+++ b/source/blender/editors/armature/pose_transform.c
@@ -100,6 +100,7 @@ static int apply_armature_pose2bones_exec(bContext *C, 
wmOperator *op)
        Depsgraph *depsgraph = CTX_data_depsgraph(C);
        Scene *scene = CTX_data_scene(C);
        Object *ob = BKE_object_pose_armature_get(CTX_data_active_object(C)); 
// must be active object, not edit-object
+       const Object *ob_eval = DEG_get_evaluated_object(depsgraph, ob);
        bArmature *arm = BKE_armature_from_object(ob);
        bPose *pose;
        bPoseChannel *pchan;
@@ -127,11 +128,12 @@ static int apply_armature_pose2bones_exec(bContext *C, 
wmOperator *op)
        pose = ob->pose;
        
        for (pchan = pose->chanbase.first; pchan; pchan = pchan->next) {
+               const bPoseChannel *pchan_eval = 
BKE_pose_channel_find_name(ob_eval->pose, pchan->name);
                curbone = ED_armature_ebone_find_name(arm->edbo, pchan->name);
                
                /* simply copy the head/tail values from pchan over to curbone 
*/
-               copy_v3_v3(curbone->head, pchan->pose_head);
-               copy_v3_v3(curbone->tail, pchan->pose_tail);
+               copy_v3_v3(curbone->head, pchan_eval->pose_head);
+               copy_v3_v3(curbone->tail, pchan_eval->pose_tail);
                
                /* fix roll:
                 *      1. find auto-calculated roll value for this bone now
@@ -147,7 +149,7 @@ static int apply_armature_pose2bones_exec(bContext *C, 
wmOperator *op)
                        invert_m3_m3(imat, premat);
                        
                        /* get pchan 'visual' matrix */
-                       copy_m3_m4(pmat, pchan->pose_mat);
+                       copy_m3_m4(pmat, pchan_eval->pose_mat);
                        
                        /* remove auto from visual and get euler rotation */
                        mul_m3_m3m3(tmat, imat, pmat);
@@ -161,17 +163,19 @@ static int apply_armature_pose2bones_exec(bContext *C, 
wmOperator *op)
                 * then clear the pchan values (so we don't get a double-up)
                 */
                if (pchan->bone->segments > 1) {
-                       curbone->curveInX += pchan->curveInX;
-                       curbone->curveInY += pchan->curveInY;
-                       curbone->curveOutX += pchan->curveOutX;
-                       curbone->curveOutY += pchan->curveOutY;
-                       curbone->roll1 += pchan->roll1;
-                       curbone->roll2 += pchan->roll2;
-                       curbone->ease1 += pchan->ease1;
-                       curbone->ease2 += pchan->ease2;
-                       curbone->scaleIn += pchan->scaleIn;
-                       curbone->scaleOut += pchan->scaleOut;
+                       /* combine rest/pose values  */
+                       curbone->curveInX += pchan_eval->curveInX;
+                       curbone->curveInY += pchan_eval->curveInY;
+                       curbone->curveOutX += pchan_eval->curveOutX;
+                       curbone->curveOutY += pchan_eval->curveOutY;
+                       curbone->roll1 += pchan_eval->roll1;
+                       curbone->roll2 += pchan_eval->roll2;
+                       curbone->ease1 += pchan_eval->ease1;
+                       curbone->ease2 += pchan_eval->ease2;
+                       curbone->scaleIn += pchan_eval->scaleIn;
+                       curbone->scaleOut += pchan_eval->scaleOut;
                        
+                       /* reset pose values */
                        pchan->curveInX = pchan->curveOutX = 0.0f;
                        pchan->curveInY = pchan->curveOutY = 0.0f;
                        pchan->roll1 = pchan->roll2 = 0.0f;
@@ -202,6 +206,7 @@ static int apply_armature_pose2bones_exec(bContext *C, 
wmOperator *op)
        
        /* note, notifier might evolve */
        WM_event_add_notifier(C, NC_OBJECT | ND_POSE, ob);
+       DEG_id_tag_update(&ob->id, DEG_TAG_COPY_ON_WRITE);
        
        return OPERATOR_FINISHED;
 }

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