diff -r 5883d1d37ab8 src/luxrender/export/__init__.py
--- a/src/luxrender/export/__init__.py  Thu Sep 08 21:15:26 2011 -0700
+++ b/src/luxrender/export/__init__.py  Tue Sep 13 22:53:04 2011 +0200
@@ -262,35 +262,27 @@
        return ws

 def object_anim_matrix(scene, obj, frame_offset=1, ignore_scale=False):
-   if obj.animation_data != None and obj.animation_data.action != None and len(obj.animation_data.action.fcurves)>0:
-       next_frame = scene.frame_current + frame_offset
-
-       anim_location = obj.location.copy()
-       anim_rotation = obj.rotation_euler.copy()
-       anim_scale    = obj.scale.copy()
-
-       for fc in obj.animation_data.action.fcurves:
-           if fc.data_path == 'location':
-               anim_location[fc.array_index] = fc.evaluate(next_frame)
-           if fc.data_path == 'rotation_euler':
-               anim_rotation[fc.array_index] = fc.evaluate(next_frame)
-           if fc.data_path == 'scale':
-               anim_scale[fc.array_index] = fc.evaluate(next_frame)
-
-       next_matrix  = mathutils.Matrix.Translation( mathutils.Vector(anim_location) )
-       anim_rotn_e = mathutils.Euler(anim_rotation)
-       anim_rotn_e.make_compatible(obj.rotation_euler)
-       anim_rotn_e = anim_rotn_e.to_matrix().to_4x4()
-       next_matrix *= anim_rotn_e
-
-       if not ignore_scale:
-           next_matrix *= mathutils.Matrix.Scale(anim_scale[0], 4, mathutils.Vector([1,0,0]))
-           next_matrix *= mathutils.Matrix.Scale(anim_scale[1], 4, mathutils.Vector([0,1,0]))
-           next_matrix *= mathutils.Matrix.Scale(anim_scale[2], 4, mathutils.Vector([0,0,1]))
-
-       return next_matrix
+   # save current object matrix
+   matrix_orginal = obj.matrix_world.copy()
+
+   # save current scene frame
+   current_frame = scene.frame_current
+   next_frame = current_frame+frame_offset
+
+   # move forward with frame_offset
+   scene.frame_set(next_frame)
+
+   # get new matrix of object
+   matrix_new = obj.matrix_world.copy()
+
+   # move frame backward
+   scene.frame_set(current_frame)
+
+   # compare the matrices if equal, then return false
+   if matrix_compare(matrix_orginal, matrix_new) == True:
+       return False
    else:
-       return False
+       return matrix_new

 def matrix_to_list(matrix, apply_worldscale=False):
    '''
@@ -331,3 +323,31 @@
        paramset.add_string('%s_data' % parameter_name, encoded_data.splitlines() )
    else:
        paramset.add_string(parameter_name, file_relative)
+
+def compare_floats(f1, f2):
+   '''
+       compare two floats
+   '''
+   epsilon = 1e-6
+   if(math.fabs(f1 - f2) > epsilon):
+       return False
+   else:
+       return True
+
+def matrix_compare(matrixA, matrixB):
+   '''
+       compare two matrices and returns True or False
+   '''
+
+   if (matrixA.col_size != matrixB.col_size) or (matrixA.row_size != matrixB.row_size):
+       return False
+
+   rows = matrixA.row_size
+   cols = matrixA.col_size
+   # iterate over the matrix
+   for row in range(rows):
+       for col in range(cols):
+           if compare_floats(matrixA[row][col], matrixB[row][col]) == False:
+               return False
+
+   return True
\ No newline at end of file