[Bf-blender-cvs] [3274ce0a8ea] blender-v2.90-release: Fix T79119: Hook modifier deformation not shown in edit mode.

[Bastien Montagne]

Commit: 3274ce0a8ea9ff7adb552d71f01bc76c04a8c5ca
Author: Bastien Montagne
Date:   Wed Jul 29 18:21:27 2020 +0200
Branches: blender-v2.90-release
https://developer.blender.org/rB3274ce0a8ea9ff7adb552d71f01bc76c04a8c5ca

Fix T79119: Hook modifier deformation not shown in edit mode.

Missing temp `BKE_mesh_wrapper_ensure_mdata` hack for the Hook
modifier...

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

M       source/blender/modifiers/intern/MOD_hook.c

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

diff --git a/source/blender/modifiers/intern/MOD_hook.c 
b/source/blender/modifiers/intern/MOD_hook.c
index c8cfc07562f..861d5ea7435 100644
--- a/source/blender/modifiers/intern/MOD_hook.c
+++ b/source/blender/modifiers/intern/MOD_hook.c
@@ -40,6 +40,7 @@
 #include "BKE_lib_id.h"
 #include "BKE_lib_query.h"
 #include "BKE_mesh.h"
+#include "BKE_mesh_wrapper.h"
 #include "BKE_modifier.h"
 #include "BKE_screen.h"
 
@@ -394,6 +395,11 @@ static void deformVertsEM(struct ModifierData *md,
   Mesh *mesh_src = MOD_deform_mesh_eval_get(
       ctx->object, editData, mesh, NULL, numVerts, false, false);
 
+  /* TODO(Campbell): use edit-mode data only (remove this line). */
+  if (mesh_src != NULL) {
+    BKE_mesh_wrapper_ensure_mdata(mesh_src);
+  }
+
   deformVerts_do(hmd, ctx, ctx->object, mesh_src, vertexCos, numVerts);
 
   if (!ELEM(mesh_src, NULL, mesh)) {

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