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QuantumCoderQC
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@ -1127,21 +1127,25 @@ class ArmoryExporter:
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def export_shape_keys(self, bobject: bpy.types.Object, export_mesh: bpy.types.Mesh, out_mesh):
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# Max shape keys supported
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max_shape_keys = 32
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# Path to store shape key textures
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output_dir = bpy.path.abspath('//') + "Bundled\\"
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name = bobject.data.name
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vert_pos = []
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vert_nor = []
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names = []
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default_values = [0] * max_shape_keys
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# Shape key base mesh
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shape_key_base = bobject.data.shape_keys.key_blocks[0]
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count = 0
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# Loop through all shape keys
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for shape_key in bobject.data.shape_keys.key_blocks[1:]:
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if(count > max_shape_keys):
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break
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# get vertex data from shape key
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vert_data = self.get_vertex_data_from_shape_key(shape_key_base, shape_key)
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vert_pos.append(vert_data['pos'])
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vert_nor.append(vert_data['nor'])
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@ -1150,24 +1154,32 @@ class ArmoryExporter:
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count += 1
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# Convert to array for easy manipulation
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pos_array = np.array(vert_pos)
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nor_array = np.array(vert_nor)
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# Min and Max values of shape key displacements
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max = np.amax(pos_array)
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min = np.amin(pos_array)
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array_size = len(pos_array[0]), len(pos_array)
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# Get best 2^n image size to fit shape key data (min = 2 X 2, max = 4096 X 4096)
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img_size, extra_zeros, block_size = self.get_best_image_size(array_size)
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# Image size required is too large. Skip export
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if(img_size < 1):
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log.error(f"""object {bobject.name} contains too many vertices or shape keys to support shape keys export""")
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self.remove_morph_uv_set(bobject)
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return
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# Write data to image
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self.bake_to_image(pos_array, nor_array, max, min, extra_zeros, img_size, name, output_dir)
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# Create a new UV set for shape keys
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self.create_morph_uv_set(bobject, img_size)
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# Export Shape Key names, defaults, etc..
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morph_target = {}
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morph_target['morph_target_data_file'] = name
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morph_target['morph_target_ref'] = names
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@ -1193,27 +1205,31 @@ class ArmoryExporter:
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pos = []
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nor = []
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# Loop through all vertices
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for i in range(num_verts):
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# Vertex position relative to base vertex
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pos.append(list(vert_pos[i].co - base_vert_pos[i].co))
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temp = []
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for j in range(3):
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# Vertex normal relative to base vertex
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temp.append(vert_nor[j + i * 3] - base_vert_nor[j + i * 3])
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nor.append(temp)
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return {'pos': pos, 'nor': nor}
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def bake_to_image(self, pos_array, nor_array, pos_max, pos_min, extra_x, img_size, name, output_dir):
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# Scale position data between [0, 1] to bake to image
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pos_array_scaled = np.interp(pos_array, (pos_min, pos_max), (0, 1))
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# Write positions to image
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self.write_output_image(pos_array_scaled, extra_x, img_size, name + '_morph_pos', output_dir)
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# Scale normal data between [0, 1] to bake to image
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nor_array_scaled = np.interp(nor_array, (-1, 1), (0, 1))
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# Write normals to image
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self.write_output_image(nor_array_scaled, extra_x, img_size, name + '_morph_nor', output_dir)
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def write_output_image(self, data, extra_x, img_size, name, output_dir):
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# Pad data with zeros to make up for required number of pixels of 2^n format
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data = np.pad(data, ((0, 0), (0, extra_x), (0, 0)), 'minimum')
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pixel_list = []
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@ -1247,7 +1263,7 @@ class ArmoryExporter:
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obj.data.uv_layers.remove(layer)
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def create_morph_uv_set(self, obj, img_size):
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# Get/ create morph UV set
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if(obj.data.uv_layers.get('UVMap_shape_key') is None):
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obj.data.uv_layers.new(name = 'UVMap_shape_key')
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@ -1259,6 +1275,7 @@ class ArmoryExporter:
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i = 0
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j = 0
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# Arrange UVs to match exported image pixels
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for v in bm.verts:
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for l in v.link_loops:
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uv_data = l[uv_layer]
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@ -1303,6 +1320,7 @@ class ArmoryExporter:
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# Check if shape keys were exported
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has_morph_target = self.get_shape_keys(bobject.data)
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if(has_morph_target):
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# Shape keys UV are exported separately, so reduce UV count by 1
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num_uv_layers -= 1
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morph_uv_index = self.get_morph_uv_index(bobject.data)
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has_tex = (self.get_export_uvs(bobject.data) and num_uv_layers > 0) or is_baked
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@ -1614,8 +1632,10 @@ Make sure the mesh only has tris/quads.""")
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bobject_eval = bobject.evaluated_get(self.depsgraph) if apply_modifiers else bobject
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export_mesh = bobject_eval.to_mesh()
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# Export shape keys here
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if shape_keys:
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self.export_shape_keys(bobject, export_mesh, out_mesh)
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# Update dependancy after new UV layer was added
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self.depsgraph.update()
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bobject_eval = bobject.evaluated_get(self.depsgraph) if apply_modifiers else bobject
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export_mesh = bobject_eval.to_mesh()
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@ -1640,7 +1660,7 @@ Make sure the mesh only has tris/quads.""")
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if armature:
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self.export_skin(bobject, armature, export_mesh, out_mesh)
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# Restore the morph state
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# Restore the morph state after mesh export
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if shape_keys:
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bobject.active_shape_key_index = active_shape_key_index
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bobject.show_only_shape_key = show_only_shape_key
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