[Bf-blender-cvs] [605749ffaaa] master: Modifiers Evaluation: generate loop normals when requested.

[Bastien Montagne]

Commit: 605749ffaaa1dc004eb8595c2b5c3bad00f2bb34
Author: Bastien Montagne
Date:   Thu Mar 7 16:23:58 2019 +0100
Branches: master
https://developer.blender.org/rB605749ffaaa1dc004eb8595c2b5c3bad00f2bb34

Modifiers Evaluation: generate loop normals when requested.

This also fixes T62228.

However, datatransfer code is still doing bad things with its source,
still working on proper changes here.

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

M       source/blender/blenkernel/intern/DerivedMesh.c

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

diff --git a/source/blender/blenkernel/intern/DerivedMesh.c 
b/source/blender/blenkernel/intern/DerivedMesh.c
index a3f89d65c5a..1fe72ce95a7 100644
--- a/source/blender/blenkernel/intern/DerivedMesh.c
+++ b/source/blender/blenkernel/intern/DerivedMesh.c
@@ -1176,7 +1176,8 @@ static void mesh_calc_modifiers(
 
        /* Generic preview only in object mode! */
        const bool do_mod_mcol = (ob->mode == OB_MODE_OBJECT);
-       const bool do_loop_normals = (((Mesh *)ob->data)->flag & ME_AUTOSMOOTH) 
!= 0;
+       const bool do_loop_normals = ((((Mesh *)ob->data)->flag & 
ME_AUTOSMOOTH) != 0 ||
+                                     (dataMask->lmask & CD_MASK_NORMAL) != 0);
 
        VirtualModifierData virtualModifierData;
 
@@ -1705,7 +1706,8 @@ static void editbmesh_calc_modifiers(
        const ModifierEvalContext mectx_orco = {depsgraph, ob, MOD_APPLY_ORCO};
        const ModifierEvalContext mectx_cache = {depsgraph, ob, 
MOD_APPLY_USECACHE};
 
-       const bool do_loop_normals = (((Mesh *)(ob->data))->flag & 
ME_AUTOSMOOTH) != 0;
+       const bool do_loop_normals = ((((Mesh *)(ob->data))->flag & 
ME_AUTOSMOOTH) != 0 ||
+                                     (dataMask->lmask & CD_MASK_NORMAL) != 0);
 
        modifiers_clearErrors(ob);

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