Mesh Deform Modifier

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

The MeshDeform modifier can deform a mesh with another 'cage' mesh.
It is similar to a lattice modifier, but instead of being restricted
to the regular grid layout of a lattice, the cage mesh can be modeled
to fit the mesh better.

http://www.blender.org/development/current-projects/changes-since-244/modifiers/

Implementation Notes:
- OpenNL has been refactored a bit to allow least squares matrices to
  be built without passing the matrix row by row, but instead with
  random access. MDef doesn't need this actually, but it's using this
  version of OpenNL so I'm just committing it now.
- Mean value weights for polygons have been added to arithb.c, a type
  of barycentric coordinates for polygons with >= 3 vertices. This
  might be useful for other parts of blender too.

2 files changed, 23 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 82923ca1aa5..384a6d93480 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -2889,6 +2889,21 @@ static void direct_link_modifiers(FileData *fd, ListBase *lb)
 				}
 			}
 		}
+		else if (md->type==eModifierType_MeshDeform) {
+			MeshDeformModifierData *mmd = (MeshDeformModifierData*) md;
+
+			mmd->bindweights= newdataadr(fd, mmd->bindweights);
+			mmd->bindcos= newdataadr(fd, mmd->bindcos);
+
+			if(fd->flags & FD_FLAGS_SWITCH_ENDIAN) {
+				int a;
+
+				for(a=0; a<mmd->totcagevert*mmd->totvert; a++)
+					SWITCH_INT(mmd->bindweights[a])
+				for(a=0; a<mmd->totcagevert*3; a++)
+					SWITCH_INT(mmd->bindcos[a])
+			}
+		}
 	}
 }
 
diff --git a/source/blender/blenloader/intern/writefile.c b/source/blender/blenloader/intern/writefile.c
index 45621c5fcd0..43907a30ac2 100644
--- a/source/blender/blenloader/intern/writefile.c
+++ b/source/blender/blenloader/intern/writefile.c
@@ -785,6 +785,14 @@ static void write_modifiers(WriteData *wd, ListBase *modbase)
 			
 			writedata(wd, DATA, sizeof(int)*hmd->totindex, hmd->indexar);
 		}
+		else if (md->type==eModifierType_MeshDeform) {
+			MeshDeformModifierData *mmd = (MeshDeformModifierData*) md;
+
+			writedata(wd, DATA, sizeof(float)*mmd->totvert*mmd->totcagevert,
+				mmd->bindweights);
+			writedata(wd, DATA, sizeof(float)*3*mmd->totcagevert,
+				mmd->bindcos);
+		}
 	}
 }