[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [41371] branches/bmesh/blender/source/ blender/editors/mesh/mesh_data.c: Fix for #29087: Meshs with non-planar polys added from py scripts show boundaries between tesselated triangles of a single poly

[Andrew Wiggin]

Revision: 41371
          
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=41371
Author:   ender79
Date:     2011-10-30 01:14:50 +0000 (Sun, 30 Oct 2011)
Log Message:
-----------
Fix for #29087: Meshs with non-planar polys added from py scripts show 
boundaries between tesselated triangles of a single poly

Modified Paths:
--------------
    branches/bmesh/blender/source/blender/editors/mesh/mesh_data.c

Modified: branches/bmesh/blender/source/blender/editors/mesh/mesh_data.c
===================================================================
--- branches/bmesh/blender/source/blender/editors/mesh/mesh_data.c      
2011-10-30 00:59:59 UTC (rev 41370)
+++ branches/bmesh/blender/source/blender/editors/mesh/mesh_data.c      
2011-10-30 01:14:50 UTC (rev 41371)
@@ -627,14 +627,15 @@
 
 void ED_mesh_update(Mesh *mesh, bContext *C, int calc_edges)
 {
+       int *polyindex = NULL;
+       float (*face_nors)[3];
+
        if(mesh->totface > 0 && mesh->totpoly == 0)
                convert_mfaces_to_mpolys(mesh);
 
        if(calc_edges || (mesh->totpoly && mesh->totedge == 0))
                BKE_mesh_calc_edges(mesh, calc_edges);
 
-       mesh_calc_normals(mesh->mvert, mesh->totvert, mesh->mloop, mesh->mpoly, 
mesh->totloop, mesh->totpoly, NULL, NULL, 0, NULL, NULL);
-
        mesh->totface = mesh_recalcTesselation(
                &mesh->fdata,
                &mesh->ldata,
@@ -648,6 +649,26 @@
 
        mesh_update_customdata_pointers(mesh);
 
+       /* origindex for tesselated faces currently holds indices of the poly
+          the face was tesselated from */
+       polyindex = CustomData_get_layer(&mesh->fdata, CD_ORIGINDEX);
+       /* add a normals layer for tesselated faces, a tessface normal will
+          contain the normal of the poly the face was tesselated from. */
+       face_nors = CustomData_add_layer(&mesh->fdata, CD_NORMAL, CD_CALLOC, 
NULL, mesh->totface);
+
+       mesh_calc_normals(
+               mesh->mvert,
+               mesh->totvert,
+               mesh->mloop,
+               mesh->mpoly,
+               mesh->totloop,
+               mesh->totpoly,
+               NULL /* polyNors_r */,
+               mesh->mface,
+               mesh->totface,
+               polyindex,
+               face_nors);
+
        DAG_id_tag_update(&mesh->id, 0);
        WM_event_add_notifier(C, NC_GEOM|ND_DATA, mesh);
 }

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