diff --git a/src/product_gen/__pycache__/generate_lamp.cpython-35.pyc b/src/product_gen/__pycache__/generate_lamp.cpython-35.pyc
index 557153d..7ca6b4e 100644
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diff --git a/src/product_gen/__pycache__/generate_product.cpython-35.pyc b/src/product_gen/__pycache__/generate_product.cpython-35.pyc
index 7b27557..7d017e3 100644
Binary files a/src/product_gen/__pycache__/generate_product.cpython-35.pyc and b/src/product_gen/__pycache__/generate_product.cpython-35.pyc differ
diff --git a/src/product_gen/__pycache__/generate_shades.cpython-35.pyc b/src/product_gen/__pycache__/generate_shades.cpython-35.pyc
index e050024..980efa8 100644
Binary files a/src/product_gen/__pycache__/generate_shades.cpython-35.pyc and b/src/product_gen/__pycache__/generate_shades.cpython-35.pyc differ
diff --git a/src/product_gen/generate_lamp.py b/src/product_gen/generate_lamp.py
index 7a8747e..baa2d24 100644
--- a/src/product_gen/generate_lamp.py
+++ b/src/product_gen/generate_lamp.py
@@ -1,33 +1,24 @@
 import os
 import bpy
 import product_gen.generate_lamp_base
-import product_gen.generate_shades
+import product_gen.generate_shades as gs
 
-def generate_models(shape, height, radius):
+def generate_models(shape_parameters):
     
     # Shade
-    radius2 = 0.3
-    if shape == "cone":
-        shade = product_gen.generate_shades.generate_pendant_shade(radius, 
-                                                                radius2, 
-                                                                height)
-    elif shape == "mesh":
-        shade = product_gen.generate_shades.generate_mesh_shade(radius, 
-                                                                radius2, height)
-    elif shape == "bio":
-        shade = product_gen.generate_shades.generate_bio_shade(radius, 
-                                                               radius2, height)      
-    elif shape == "pendant":
-        shade = product_gen.generate_shades.generate_pendant_shade(radius, 
-                                                               radius2, 
-                                                               height)   
+    if shape_parameters["shape"] == "mesh":
+        shade = gs.generate_mesh_shade(shape_parameters)
+    elif shape_parameters["shape"] == "led":
+        shade = gs.generate_led_shade(shape_parameters)      
+    else: # default pendant
+        shade = gs.generate_pendant_shade(shape_parameters)   
         
     # Base
-    if "bio" not in shape:
+    if "bio" not in shape_parameters["shape"]:
         radius1 = 0.3
         radius2 = 0.07
         depth = 0.5
-        location = (0.0, 0.0, height/2.0+depth/2.0)
+        location = (0.0, 0.0, depth/2.0)
         base = product_gen.generate_lamp_base.generate_cone_base(radius1, 
                                                                  radius2, 
                                                                  depth,
diff --git a/src/product_gen/generate_product.py b/src/product_gen/generate_product.py
index 0dcf632..0f18fb7 100644
--- a/src/product_gen/generate_product.py
+++ b/src/product_gen/generate_product.py
@@ -5,25 +5,21 @@ import product_gen.generate_lamp
 import rendering.setup_scene
 import rendering.setup_renderer
 
-def generate(shape, 
-             height, 
-             radius, 
-             color,
-             output_prefix,
-             is_final=False):
+def generate(shape_parameters, output_prefix, is_final=False):
     
-    rendering.setup_renderer.setup_renderer()
+    rendering.setup_renderer.setup_renderer(shape_parameters)
     
-    rendering.setup_scene.initialize_scene()
+    rendering.setup_scene.initialize_scene(shape_parameters)
     
     # Generate models
-    models = product_gen.generate_lamp.generate_models(shape, height, radius)
+    models = product_gen.generate_lamp.generate_models(shape_parameters)
     
     # Optimize geometries for render
     product_gen.generate_lamp.optimize_for_render(models)
 
     # Set up materials and textures
-    if "bio" not in shape:
+    color = (0.1, 0.1, 0.1)
+    if "bio" not in shape_parameters["shape"]:
         colormap = {"shade": color,
                     "base": (132.0/255.0, 64.0/255.0, 11.0/255.0),
                     "chord": (5.0/255.0, 5.0/255.0, 5.0/255.0)}
@@ -32,7 +28,7 @@ def generate(shape,
         
     product_gen.generate_lamp.apply_textures(colormap, models)
     
-    rendering.setup_scene.setup_scene()
+    rendering.setup_scene.setup_scene(shape_parameters)
     
     # Do rendering
     prefix = os.getcwd() + "/" + output_prefix + "/" + output_prefix
@@ -52,4 +48,4 @@ def generate(shape,
         
     bpy.ops.wm.save_as_mainfile(filepath=prefix + ".blend") 
     
-    return height, radius, color
\ No newline at end of file
+    return shape_parameters
\ No newline at end of file
diff --git a/src/product_gen/generate_shades.py b/src/product_gen/generate_shades.py
index e476b0d..91c1712 100644
--- a/src/product_gen/generate_shades.py
+++ b/src/product_gen/generate_shades.py
@@ -14,27 +14,103 @@ def UpOrDown(normal):
         return True
     return False
 
-def generate_pendant_shade(radius1, radius2, depth):
+def generate_pendant_shade(shape_parameters):
 
-    bpy.ops.mesh.primitive_cylinder_add(radius=radius1,
+    radius = shape_parameters["radius"]
+    depth = shape_parameters["height"]
+    print(depth)
+    
+    bpy.ops.mesh.primitive_cylinder_add(radius=radius,
                                         depth=depth)
     cone = bpy.data.objects["Cylinder"]
     cone.name = "shade"
     bpy.ops.object.mode_set(mode='EDIT')
 
-    for idx in range(3):
+    num_subdivisions = 3
+    if len(shape_parameters["division_offsets"])>3:
+        num_subdivisions = 4
+    for idx in range(num_subdivisions):
         bpy.ops.mesh.subdivide()
         
     bm = bmesh.from_edit_mesh(cone.data)
-    for i in range( len( bm.verts ) ):
+    num_verts = len(bm.verts)
+    
+    summed_offset = 0.0
+    for jdx in range(len(shape_parameters["division_offsets"])):
+        summed_offset += shape_parameters["division_offsets"][jdx]
+        print(summed_offset)
+    
+    for idx in range(num_verts):
         bm.verts.ensure_lookup_table()
-        vert = bm.verts[i]
+        vert = bm.verts[idx]
         theta = math.atan2(vert.co.x, vert.co.y)
-        delta = abs(vert.co.z-depth/2.0)
+        vert.co.z = vert.co.z -depth/2.0
         
-        mapped_rad = radius2 + delta**2
-        vert.co.x = mapped_rad*math.sin(theta)
-        vert.co.y = mapped_rad*math.cos(theta)
+        delta = abs(vert.co.z)
+        frac = delta/depth
+        
+        summed_offset = 0.0
+        prev_offset = 0.0
+        
+        division_index = len(shape_parameters["division_offsets"])-1
+        for jdx in range(len(shape_parameters["division_offsets"])):
+            prev_offset = summed_offset
+            summed_offset += shape_parameters["division_offsets"][jdx]
+            if frac >=prev_offset and frac <= summed_offset:
+                division_index = jdx
+        if division_index==0:
+            print(vert.co.z, frac)
+        current_offset = shape_parameters["division_offsets"][division_index]                              
+        division_type = shape_parameters["division_patterns"][division_index]
+  
+
+        if division_index==0:
+            print(vert.co.z, frac, division_index)            
+            division_radius = shape_parameters["fixture_radius"]
+            previous_offset = 0.0
+            previous_radius = division_radius
+        else:
+            division_radius = shape_parameters["radius"]*shape_parameters["division_radii"][division_index]   
+            previous_offset = shape_parameters["division_offsets"][division_index-1]
+            previous_radius = shape_parameters["radius"]*shape_parameters["division_radii"][division_index-1]
+            if previous_radius< shape_parameters["fixture_radius"]:
+                previous_radius = shape_parameters["fixture_radius"]
+                       
+        
+        if division_radius<previous_radius:
+            division_radius = previous_radius
+        
+        #print(division_radius, vert.co.z)
+        if division_type == "straight":
+            vert.co.x = division_radius*math.sin(theta)
+            vert.co.y = division_radius*math.cos(theta)         
+#         elif division_type == "square":
+#             mapped_rad = division_radius + (delta/3.0)**2
+#             vert.co.x = mapped_rad*math.sin(theta)
+#             vert.co.y = mapped_rad*math.cos(theta)
+#         elif division_type == "inv_square":
+#             mapped_rad = division_radius + 1.0/(0.01+delta**2)
+#             vert.co.x = mapped_rad*math.sin(theta)
+#             vert.co.y = mapped_rad*math.cos(theta)
+        else:
+#        elif division_type == "sine":
+
+            mapped_rad = division_radius + math.sin(math.pi/2.0*frac)
+            vert.co.x = mapped_rad*math.sin(theta)
+            vert.co.y = mapped_rad*math.cos(theta)
+#         elif division_type == "inv_sine":
+#             mapped_rad = division_radius + 1.0/math.sin(delta)
+#             vert.co.x = mapped_rad*math.sin(theta)
+#             vert.co.y = mapped_rad*math.cos(theta)
+#         else:
+#         #elif division_type == "ramp":
+#             mapped_rad = division_radius + delta
+#             vert.co.x = mapped_rad*math.sin(theta)
+#             vert.co.y = mapped_rad*math.cos(theta)
+#         elif division_type == "inv_ramp":
+#             mapped_rad = division_radius + delta
+#             vert.co.x = mapped_rad*math.sin(theta)
+#             vert.co.y = mapped_rad*math.cos(theta)
         
     for face in bm.faces:
         if UpOrDown(face.normal):
@@ -160,7 +236,7 @@ def make_square_ring(radius, depth, thickness):
     bpy.ops.object.mode_set(mode='OBJECT')
     return bpy.data.objects["square_ring"]   
 
-def generate_bio_shade(radius1, radius2, depth):
+def generate_led_shade(radius1, radius2, depth):
 
     ring1 = make_square_ring(3.0*radius1, depth/10.0, 0.2)
     bpy.ops.transform.rotate(value=-math.pi/12.0, axis=(1.0,0.0,0.0))
diff --git a/src/rendering/__init__.py b/src/rendering/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/rendering/__pycache__/__init__.cpython-35.pyc b/src/rendering/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..72925d4
Binary files /dev/null and b/src/rendering/__pycache__/__init__.cpython-35.pyc differ
diff --git a/src/rendering/__pycache__/setup_renderer.cpython-35.pyc b/src/rendering/__pycache__/setup_renderer.cpython-35.pyc
index ddd08ef..c50bfb5 100644
Binary files a/src/rendering/__pycache__/setup_renderer.cpython-35.pyc and b/src/rendering/__pycache__/setup_renderer.cpython-35.pyc differ
diff --git a/src/rendering/__pycache__/setup_scene.cpython-35.pyc b/src/rendering/__pycache__/setup_scene.cpython-35.pyc
index 0052fe1..5e7c785 100644
Binary files a/src/rendering/__pycache__/setup_scene.cpython-35.pyc and b/src/rendering/__pycache__/setup_scene.cpython-35.pyc differ
diff --git a/src/rendering/setup_renderer.py b/src/rendering/setup_renderer.py
index cc3e323..6563f96 100644
--- a/src/rendering/setup_renderer.py
+++ b/src/rendering/setup_renderer.py
@@ -1,22 +1,23 @@
 import bpy
 
-def setup_renderer(engine="CYCLES"):
+def setup_renderer(shape_parameters, engine="CYCLES"):
     
     # Set up and do the render
+    this_scene = bpy.context.scene
     if engine=="CYCLES":
-        bpy.context.scene.render.engine = 'CYCLES'
-        bpy.context.scene.cycles.device = 'GPU'
-        bpy.context.scene.cycles.samples = 12.0
-        bpy.context.scene.cycles.caustics_reflective = False
-        bpy.context.scene.cycles.caustics_refractive = False
-        bpy.context.scene.cycles.max_bounces = 0.0
-    bpy.data.scenes["Scene"].render.use_border = False      # Tell Blender to use border render
-    bpy.data.scenes["Scene"].render.border_max_y = 0.75    # Set the border top at 3/4 of the image's height
-    bpy.data.scenes["Scene"].render.border_min_y = 0.33    # Set the border bottom at 1/3 of the image's height
-    bpy.data.scenes["Scene"].render.border_min_x = 0.25    # Set the border left at 1/4 of the image's width
-    bpy.data.scenes["Scene"].render.border_max_x = 0.65     # Set the border right at the image's right border
-    bpy.context.scene.render.resolution_x = 600.0
-    bpy.context.scene.render.resolution_y = 600.0
-    bpy.context.scene.render.tile_x = 32
-    bpy.context.scene.render.tile_y = 32
-    bpy.context.scene.render.resolution_percentage = 50.0   
\ No newline at end of file
+        this_scene.render.engine = 'CYCLES'
+        this_scene.cycles.device = 'GPU'
+        this_scene.cycles.samples = 12.0
+        this_scene.cycles.caustics_reflective = False
+        this_scene.cycles.caustics_refractive = False
+        this_scene.cycles.max_bounces = 0.0
+    this_scene.render.use_border = False
+    this_scene.render.border_max_y = 0.75
+    this_scene.render.border_min_y = 0.33
+    this_scene.render.border_min_x = 0.25 
+    this_scene.render.border_max_x = 0.65 
+    this_scene.render.resolution_x = 600.0
+    this_scene.render.resolution_y = 600.0
+    this_scene.render.tile_x = 32
+    this_scene.render.tile_y = 32
+    this_scene.render.resolution_percentage = 50.0   
\ No newline at end of file
diff --git a/src/rendering/setup_scene.py b/src/rendering/setup_scene.py
index b0c0f2e..9296cde 100644
--- a/src/rendering/setup_scene.py
+++ b/src/rendering/setup_scene.py
@@ -1,38 +1,38 @@
 import math
 import bpy
 
-def initialize_scene():
+def initialize_scene(shape_parameters):
     
     # Set up scene
     objs = bpy.data.objects
     bpy.data.scenes['Scene'].objects.unlink(objs["Cube"])
     objs.remove(objs["Cube"])    
             
-def setup_scene(): 
+def setup_scene(shape_parameters): 
     
     # Set up world
     bpy.context.scene.world.use_sky_paper = True
-    bpy.context.scene.world.horizon_color = (0.58, 0.58, 0.58)
+    bpy.context.scene.world.horizon_color = (0.99, 0.8, 0.8)
     #bpy.context.scene.world.light_settings.use_environment_light = True
     
     # Add back wall
-#     bpy.ops.mesh.primitive_plane_add(radius=20, location=(-10.0, 0.0, 0.0))
-#     bpy.ops.transform.rotate(value=math.pi/2.0, axis=(0.0,1.0,0.0))
-#     bpy.data.objects["Plane"].name = "back_wall"
-#     mat = bpy.data.materials.get("backwall-material")
-#     if mat is None:
-#         mat = bpy.data.materials.new("backwall-material")
-#     mat.diffuse_color = (0.25, 0.25, 0.25)
-#     mat.specular_color = (0.25, 0.25, 0.25)
-#     mat.diffuse_intensity = 1.0
-#     mat.specular_intensity = 1.0
-#     bpy.context.scene.objects.active = bpy.data.objects["back_wall"]
-#     if bpy.context.active_object.data.materials:
-#         # assign to 1st material slot
-#         bpy.context.active_object.data.materials[0] = mat
-#     else:
-#         # no slots
-#         bpy.context.active_object.data.materials.append(mat)     
+    bpy.ops.mesh.primitive_plane_add(radius=20, location=(-10.0, 0.0, 0.0))
+    bpy.ops.transform.rotate(value=math.pi/2.0, axis=(0.0,1.0,0.0))
+    bpy.data.objects["Plane"].name = "back_wall"
+    mat = bpy.data.materials.get("backwall-material")
+    if mat is None:
+        mat = bpy.data.materials.new("backwall-material")
+    mat.diffuse_color = (0.25, 0.25, 0.25)
+    mat.specular_color = (0.25, 0.25, 0.25)
+    mat.diffuse_intensity = 1.0
+    mat.specular_intensity = 1.0
+    bpy.context.scene.objects.active = bpy.data.objects["back_wall"]
+    if bpy.context.active_object.data.materials:
+        # assign to 1st material slot
+        bpy.context.active_object.data.materials[0] = mat
+    else:
+        # no slots
+        bpy.context.active_object.data.materials.append(mat)     
     
     # Set up cameras
     bpy.data.objects["Camera"].location = (10.0, 0.0, -1)
@@ -41,7 +41,8 @@ def setup_scene():
     bpy.data.objects["Camera"].rotation_mode = 'XYZ'
     bpy.data.objects["Camera"].rotation_euler[0] = math.pi/2.0
     bpy.data.objects["Camera"].rotation_euler[1] = 0.0
-    bpy.data.objects["Camera"].rotation_euler[2] = math.pi/2.0
+    # todo tilt down further for light render
+    bpy.data.objects["Camera"].rotation_euler[2] = math.pi/2.0 
     
     # Lamps
     bpy.data.scenes['Scene'].objects.unlink(bpy.data.objects["Lamp"])
diff --git a/src/shapes/__init__.py b/src/shapes/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/shapes/__pycache__/__init__.cpython-35.pyc b/src/shapes/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..f29fab5
Binary files /dev/null and b/src/shapes/__pycache__/__init__.cpython-35.pyc differ
diff --git a/src/shapes/__pycache__/shape_description.cpython-35.pyc b/src/shapes/__pycache__/shape_description.cpython-35.pyc
new file mode 100644
index 0000000..f3e7ca5
Binary files /dev/null and b/src/shapes/__pycache__/shape_description.cpython-35.pyc differ
diff --git a/src/shapes/shape_description.py b/src/shapes/shape_description.py
new file mode 100644
index 0000000..47d5215
--- /dev/null
+++ b/src/shapes/shape_description.py
@@ -0,0 +1,70 @@
+import random
+import copy
+
+_shape_description = {"shape": "pendant",
+                      "division_patterns": [],
+                      "division_offsets": [],
+                      "division_radii": [],
+                      "radius": 1.0,
+                      "height": 1.0,
+                      "fixture_radius": 0.3,
+                      "style": "dark"}
+
+_styles = {"dark" : {"shade": (0.1, 0.1, 0.1),
+            "chord": (0.05, 0.05, 0.05),
+            "base": (0.05, 0.05, 0.05),
+            "use_wall": True,
+            "wall": (0.9, 0.9, 0.9)},
+           "billard": {"shade": (0.1, 0.1, 0.1),
+            "chord": (0.05, 0.05, 0.05),
+            "base": (0.05, 0.05, 0.05),
+            "use_wall": True,
+            "wall": (0.9, 0.9, 0.9)},
+           "light": {"shade": (0.1, 0.1, 0.1),
+            "chord": (0.05, 0.05, 0.05),
+            "base": (0.05, 0.05, 0.05),
+            "use_wall": True,
+            "wall": (0.9, 0.9, 0.9)},             
+           }
+
+_division_types = ["straight",
+                   "square",
+                   "inv_square",
+                   "sine",
+                   "inv_sine",
+                   "ramp",
+                   "inv_ramp"]
+
+
+def get_random_shape_description(shape, bbox, feature_min):
+    
+    """
+    Generate a random shape description and style
+    """
+    
+    shape_description = copy.deepcopy(_shape_description)
+    shape_description["shape"] = shape
+    
+    max_divisions = 3
+    num_divisions = int(1 + random.random()*(max_divisions-1))
+    num_divisions = 4
+    
+    remaining_offset = 1.0
+    feature_height = feature_min[1] + random.random()*(bbox[1]-feature_min[1])
+    feature_radius = feature_min[0] + random.random()*(bbox[0]-feature_min[0])
+    shape_description["height"] = feature_height
+    shape_description["radius"] = feature_radius
+    
+    min_radius_fraction = feature_min[0]/feature_radius
+    for idx in range(num_divisions):
+        shape_description["division_patterns"].append(random.choice(_division_types))
+        
+        offset = 1.0/num_divisions
+        #offset = random.random()*remaining_offset
+        remaining_offset -= offset
+        shape_description["division_offsets"].append(offset)
+        radius_fraction = min_radius_fraction+random.random()*(1.0-min_radius_fraction)
+        shape_description["division_radii"].append(radius_fraction)
+    shape_description["style"] = random.choice(list(_styles.keys()))
+    shape_description["division_radii"].sort()
+    return shape_description
\ No newline at end of file
diff --git a/src/utility/apply_texture.py b/src/utility/apply_texture.py
index 154526e..81fad0c 100644
--- a/src/utility/apply_texture.py
+++ b/src/utility/apply_texture.py
@@ -13,7 +13,6 @@ if __name__ == "__main__":
     shape_params = json.loads(argv[0])
     shape = shape_params['shape']
     output = shape_params['output']
-    print(output)
     
     if not os.path.exists(os.getcwd() + "/" + output):
         os.makedirs(os.getcwd() + "/" + output)
diff --git a/src/utility/generate_shape.py b/src/utility/generate_shape.py
index 69b3d4a..7de01d3 100644
--- a/src/utility/generate_shape.py
+++ b/src/utility/generate_shape.py
@@ -7,6 +7,7 @@ import sys
 import random
 import json
 import product_gen.generate_product
+import product_gen.shapes.shape_description as sd
 from argparse import ArgumentParser
 
 if __name__ == "__main__":
@@ -23,25 +24,15 @@ if __name__ == "__main__":
     
     # Global bounding box
     bbox_xmax = 2.2
-    bbox_ymax = 2.5
+    bbox_ymax = 20.0
     
     # Minimum feature sizes
     feature_xmin = 0.4
     feature_ymin = 1.0
-        
-    height = 1.0 + random.random()*1.5
-    radius = 0.2 + random.random()*1.0
-    color = [0.1, 0.1, 0.1]
+    shape_parameters = sd.get_random_shape_description(shape, 
+                                                       [bbox_xmax, bbox_ymax],
+                                                       [feature_xmin, feature_ymin])
     
-    height, radius, color = product_gen.generate_product.generate(shape, 
-                                                                  height,
-                                                                  radius,
-                                                                  color,
-                                                                  output)
-
-    shape_parameters = {"shape": shape, 
-                        "height": height,
-                        "radius": radius,
-                        "color": color}
+    shape_parameters = product_gen.generate_product.generate(shape_parameters, output)
     with open(os.getcwd() + "/" + output + "/"+ output + '.json', 'w') as outfile:
         json.dump(shape_parameters, outfile)
diff --git a/src/utility/test456/test456.blend b/src/utility/test456/test456.blend
index 31b738e..5f0346c 100644
Binary files a/src/utility/test456/test456.blend and b/src/utility/test456/test456.blend differ
diff --git a/src/utility/test456/test456.blend1 b/src/utility/test456/test456.blend1
index 958a144..3478fa1 100644
Binary files a/src/utility/test456/test456.blend1 and b/src/utility/test456/test456.blend1 differ
diff --git a/src/utility/test456/test456.json b/src/utility/test456/test456.json
index 482cfd6..6c2e2d9 100644
--- a/src/utility/test456/test456.json
+++ b/src/utility/test456/test456.json
@@ -1 +1 @@
-{"color": [0.1, 0.1, 0.1], "shape": "cone", "radius": 1.0698675312816335, "height": 2.122232726076932}
\ No newline at end of file
+{"radius": 0.2561832220044716, "height": 2.088070401902109, "shape": "cone", "color": [0.1, 0.1, 0.1]}
\ No newline at end of file
diff --git a/src/utility/test456/test456.png b/src/utility/test456/test456.png
index ac89ff9..848a2d4 100644
Binary files a/src/utility/test456/test456.png and b/src/utility/test456/test456.png differ
diff --git a/test/test/test.blend b/test/test/test.blend
index fd6c3ca..9051e27 100644
Binary files a/test/test/test.blend and b/test/test/test.blend differ
diff --git a/test/test/test.blend1 b/test/test/test.blend1
index c2cd11f..2ed940e 100644
Binary files a/test/test/test.blend1 and b/test/test/test.blend1 differ
diff --git a/test/test/test.json b/test/test/test.json
index c6e2a44..becab29 100644
--- a/test/test/test.json
+++ b/test/test/test.json
@@ -1 +1 @@
-{"height": 1.5, "color": [0.1, 0.1, 0.1], "shape": "bio", "radius": 1.5}
\ No newline at end of file
+{"shape": "pendant", "style": "dark", "division_patterns": ["ramp", "ramp", "inv_ramp", "inv_sine"], "fixture_radius": 0.3, "height": 4.305539689400392, "radius": 0.8584699492695225, "division_offsets": [0.25, 0.25, 0.25, 0.25], "division_radii": [0.5441324228652892, 0.6530641783849034, 0.7409502304795115, 0.751148488921151]}
\ No newline at end of file
diff --git a/test/test/test.png b/test/test/test.png
index 8d66a48..56ab597 100644
Binary files a/test/test/test.png and b/test/test/test.png differ
diff --git a/test/test_generate_lamp.py b/test/test_generate_lamp.py
index 06861f9..9ed20c6 100644
--- a/test/test_generate_lamp.py
+++ b/test/test_generate_lamp.py
@@ -3,6 +3,7 @@ import sys
 import random
 import json
 import product_gen.generate_product
+import shapes.shape_description as sd
 from argparse import ArgumentParser
 
 if __name__ == "__main__":
@@ -13,15 +14,17 @@ if __name__ == "__main__":
     if not os.path.exists(os.getcwd() + "/" + output):
         os.makedirs(os.getcwd() + "/" + output)
     
-    height = 1.5
-    radius = 1.5
-    color = [0.1, 0.1, 0.1]
+    # Global bounding box
+    bbox_xmax = 4.0
+    bbox_ymax = 5.0
+    
+    # Minimum feature sizes
+    feature_xmin = 0.4
+    feature_ymin = 1.0
+    shape_parameters = sd.get_random_shape_description(shape, 
+                                                       [bbox_xmax, bbox_ymax],
+                                                       [feature_xmin, feature_ymin])
+    shape_parameters = product_gen.generate_product.generate(shape_parameters, output)
     
-    product_gen.generate_product.generate(shape, height, radius, color, output)
-
-    shape_parameters = {"shape": shape, 
-                        "height": height,
-                        "radius": radius,
-                        "color": color}
     with open(os.getcwd() + "/" + output + "/"+ output + '.json', 'w') as outfile:
         json.dump(shape_parameters, outfile)