Bugfix: fixed a bug that caused vertex colors to be improperly assigned

after temporal mesh triangulation.

jme3-blender/src/main/java/com/jme3/scene/plugins/blender/meshes/Face.java

@@ -180,7 +180,7 @@ public class Face implements Comparator<Integer> {
                 }
                 if (detachedFaces.size() == 0 && path.size() < indexes.size()) {
                     Integer[] indexesSublist = path.toArray(new Integer[path.size()]);
-                    detachedFaces.add(new Face(indexesSublist, smooth, materialNumber, meshHelper.selectUVSubset(this, indexesSublist), vertexColors, temporalMesh));
+                    detachedFaces.add(new Face(indexesSublist, smooth, materialNumber, meshHelper.selectUVSubset(this, indexesSublist), meshHelper.selectVertexColorSubset(this, indexesSublist), temporalMesh));
                     for (int j = 0; j < path.size() - 1; ++j) {
                         indexes.removeEdge(path.get(j), path.get(j + 1));
                     }

jme3-blender/src/main/java/com/jme3/scene/plugins/blender/meshes/MeshHelper.java

@@ -340,6 +340,26 @@ public class MeshHelper extends AbstractBlenderHelper {
         }
         return result;
     }
+    
+    /**
+     * Selects the proper subsets of vertex colors for the given sublist of indexes.
+     * @param face
+     *            the face with the original vertex colors
+     * @param indexesSublist
+     *            the sub list of indexes
+     * @return a sublist of vertex colors
+     */
+    public List<byte[]> selectVertexColorSubset(Face face, Integer... indexesSublist) {
+        List<byte[]> result = null;
+        List<byte[]> vertexColors = face.getVertexColors();
+        if (vertexColors != null) {
+            result = new ArrayList<byte[]>(indexesSublist.length);
+            for (Integer index : indexesSublist) {
+                result.add(vertexColors.get(face.getIndexes().indexOf(index)));
+            }
+        }
+        return result;
+    }
 
     /**
      * Returns the black unshaded material. It is used for lines and points because that is how blender

jme3-blender/src/main/java/com/jme3/scene/plugins/blender/meshes/TemporalMesh.java

@@ -402,7 +402,7 @@ public class TemporalMesh extends Geometry {
                     int vertIndex = indexes.get(i);
                     tempVerts[i] = vertices.get(vertIndex);
                     tempNormals[i] = normals.get(vertIndex);
-                    tempVertColors[i] = vertexColors != null ? vertexColors.get(i) : null;
+                    tempVertColors[i] = vertexColors != null ? vertexColors.get(face.getIndexes().indexOf(vertIndex)) : null;
 
                     if (boneIndexes.size() > 0) {
                         Map<Float, Integer> boneBuffersForVertex = new HashMap<Float, Integer>();