[Bf-blender-cvs] [58ffd8b] gooseberry: Always make sure the surface modifier has tessfaces available for building the BVH.

[Lukas Tönne]

Commit: 58ffd8beb3342a73422a5c0a24a04f3fbe299806
Author: Lukas Tönne
Date:   Wed Feb 18 11:49:04 2015 +0100
Branches: gooseberry
https://developer.blender.org/rB58ffd8beb3342a73422a5c0a24a04f3fbe299806

Always make sure the surface modifier has tessfaces available for
building the BVH.

A long long time ago (rB3816554cbc1a40dc5199c8e56e45817ec09128d5) it
was coded such that edges would be used instead of faces for surface
distance calculation. This is pretty much never what you actually want.

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

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

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

diff --git a/source/blender/modifiers/intern/MOD_surface.c b/source/blender/modifiers/intern/MOD_surface.c
index 1c462f1..36a1759 100644
--- a/source/blender/modifiers/intern/MOD_surface.c
+++ b/source/blender/modifiers/intern/MOD_surface.c
@@ -111,6 +111,7 @@ static void deformVerts(ModifierData *md, Object *ob,
 		float *vec;
 		MVert *x, *v;
 
+		DM_ensure_tessface(surmd->dm);
 		CDDM_apply_vert_coords(surmd->dm, vertexCos);
 		CDDM_calc_normals(surmd->dm);