546 lines
24 KiB
Python
546 lines
24 KiB
Python
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import os
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import random
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import math
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import bpy
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import numpy as np
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import mathutils
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import requests
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from blender.blender_util import BlenderUtils
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from blender.view_sample_util import ViewSampleUtil
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class DataGenerator:
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def __init__(self, config):
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self.plane_size = config["runner"]["generate"]["plane_size"]
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self.table_model_path = config["runner"]["generate"]["table_model_path"]
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self.output_dir = config["runner"]["generate"]["output_dir"]
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self.random_config = config["runner"]["generate"]["random_config"]
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self.light_and_camera_config = config["runner"]["generate"]["light_and_camera_config"]
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self.obj_dir = config["runner"]["generate"]["object_dir"]
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self.max_views = config["runner"]["generate"]["max_views"]
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self.min_views = config["runner"]["generate"]["min_views"]
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self.min_diag = config["runner"]["generate"]["min_diag"]
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self.max_diag = config["runner"]["generate"]["max_diag"]
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self.min_cam_table_included_degree = config["runner"]["generate"]["min_cam_table_included_degree"]
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self.random_view_ratio = config["runner"]["generate"]["random_view_ratio"]
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self.binocular_vision = config["runner"]["generate"]["binocular_vision"]
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self.port = config["runner"]["generate"]["port"]
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self.from_idx = config["runner"]["generate"]["from"]
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self.to_idx = config["runner"]["generate"]["to"]
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self.set_status_path = f"http://localhost:{self.port}/project/set_status"
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self.log_path = f"http://localhost:{self.port}/project/add_log"
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self.obj_name_list = os.listdir(self.obj_dir)[self.from_idx: self.to_idx]
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self.target_obj = None
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self.stopped = False
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self.random_obj_list = []
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self.display_table_config = {}
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BlenderUtils.setup_scene(self.light_and_camera_config, self.table_model_path, self.binocular_vision)
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self.table = BlenderUtils.get_obj(BlenderUtils.TABLE_NAME)
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self.access = self._check_set_status_access(self.set_status_path)
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print(self.access)
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def _check_set_status_access(self, url):
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try:
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response = requests.get(url, timeout=5)
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return True
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except requests.RequestException as e:
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print(f"Cannot access {url}: {e}")
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return False
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def set_status(self, key, value):
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if not self.access:
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return
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request_data = {}
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request_data["status"] = {
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"app_name" : "generate_view",
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"runner_name" : "view_generator",
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"key": key,
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"value": value
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}
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requests.post(self.set_status_path, json=request_data)
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def set_progress(self, key, curr_value, max_value):
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if not self.access:
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return
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request_data = {}
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request_data["progress"] = {
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"app_name" : "generate_view",
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"runner_name" : "view_generator",
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"key": key,
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"curr_value": curr_value,
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"max_value": max_value
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}
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requests.post(self.set_status_path, json=request_data)
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def add_log(self, msg, log_type):
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if not self.access:
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print(f"[{log_type}] {msg}")
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return
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request_data = {"log":{}}
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request_data["log"]["message"] = msg
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request_data["log"]["log_type"] = log_type
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requests.post(self.log_path, json=request_data)
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def generate_display_platform(self):
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config = self.random_config[BlenderUtils.DISPLAY_TABLE_NAME]
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height = random.uniform(config["min_height"], config["max_height"])
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radius = random.uniform(config["min_radius"], config["max_radius"])
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while height > 0.5 * radius:
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height = random.uniform(config["min_height"], config["max_height"])
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bpy.ops.mesh.primitive_cylinder_add(radius=radius, depth=height)
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platform = bpy.context.selected_objects[-1]
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platform.name = BlenderUtils.DISPLAY_TABLE_NAME
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bbox = self.table.bound_box
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bbox_world = [self.table.matrix_world @ mathutils.Vector(corner) for corner in bbox]
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table_top_z = max([v.z for v in bbox_world])
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platform.location = (0, 0, table_top_z + height / 2)
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bpy.ops.rigidbody.object_add()
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bpy.context.object.rigid_body.type = 'PASSIVE'
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bpy.ops.object.shade_auto_smooth()
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# 创建不受光照影响的材质
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mat = bpy.data.materials.new(name="RedMaterial")
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mat.use_nodes = True
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# 清除默认节点
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nodes = mat.node_tree.nodes
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for node in nodes:
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nodes.remove(node)
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# 添加 Emission 节点
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emission_node = nodes.new(type='ShaderNodeEmission')
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emission_node.inputs['Color'].default_value = (1.0, 0.0, 0.0, 1.0) # 红色
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# 添加 Material Output 节点
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output_node = nodes.new(type='ShaderNodeOutputMaterial')
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# 连接节点
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links = mat.node_tree.links
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links.new(emission_node.outputs['Emission'], output_node.inputs['Surface'])
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# 将材质赋给对象
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platform.data.materials.clear()
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platform.data.materials.append(mat)
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self.display_table_config = {
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"height": height,
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"radius": radius,
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"location": list(platform.location)
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}
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return platform
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def put_display_object(self, name):
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config = self.random_config["display_object"]
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x = random.uniform(config["min_x"], config["max_x"])
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y = random.uniform(config["min_y"], config["max_y"])
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z = random.uniform(config["min_z"], config["max_z"])
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if random.random() <= config["random_rotation_ratio"]:
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rotation = (
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random.uniform(0, 2 * np.pi),
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random.uniform(0, 2 * np.pi),
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random.uniform(0, 2 * np.pi)
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)
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else:
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rotation = (0, 0, 0)
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z = 0.05
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platform_bbox = self.platform.bound_box
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platform_bbox_world = [self.platform.matrix_world @ mathutils.Vector(corner) for corner in platform_bbox]
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platform_top_z = max([v.z for v in platform_bbox_world])
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obj_mesh_path = BlenderUtils.get_obj_path(self.obj_dir, name)
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obj = BlenderUtils.load_obj(name, obj_mesh_path)
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obj_bottom_z = BlenderUtils.get_object_bottom_z(obj)
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offset_z = obj_bottom_z
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obj.rotation_euler = rotation
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obj.location = (x, y, platform_top_z - offset_z + z)
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bpy.ops.rigidbody.object_add()
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bpy.context.object.rigid_body.type = 'ACTIVE'
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# 创建不受光照影响的材质
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mat = bpy.data.materials.new(name="GreenMaterial")
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mat.use_nodes = True
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# 清除默认节点
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nodes = mat.node_tree.nodes
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for node in nodes:
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nodes.remove(node)
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# 添加 Emission 节点
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emission_node = nodes.new(type='ShaderNodeEmission')
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emission_node.inputs['Color'].default_value = (0.0, 1.0, 0.0, 1.0) # 绿色
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# 添加 Material Output 节点
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output_node = nodes.new(type='ShaderNodeOutputMaterial')
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# 连接节点
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links = mat.node_tree.links
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links.new(emission_node.outputs['Emission'], output_node.inputs['Surface'])
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# 将材质赋给对象
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obj.data.materials.clear()
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obj.data.materials.append(mat)
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self.target_obj = obj
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def reset(self):
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self.target_obj = None
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self.random_obj_list = []
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BlenderUtils.reset_objects_and_platform()
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def check_moving_objects(self, previous_locations):
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threshold = 0.01
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moving_objects = False
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target_checking_object = [self.target_obj] + self.random_obj_list
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for obj in target_checking_object:
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if obj.rigid_body:
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current_location = obj.location
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location_diff = (current_location - previous_locations[obj.name]).length
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if location_diff > threshold:
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moving_objects = True
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break
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return moving_objects
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def check_and_adjust_target(self):
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target_position = self.target_obj.matrix_world.translation
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msg = "success"
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if abs(target_position[0]) > self.random_config["display_object"]["max_x"]:
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target_position[0] = np.sign(target_position[0]) * self.random_config["display_object"]["max_x"]*random.uniform(-0.5,0.5)
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msg = "adjusted"
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if abs(target_position[1]) > self.random_config["display_object"]["max_y"]:
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target_position[1] = np.sign(target_position[1]) * self.random_config["display_object"]["max_y"]*random.uniform(-0.5,0.5)
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msg = "adjusted"
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if target_position[2] < 0.85:
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target_position[2] = target_position[2] + 0.1
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msg = "adjusted"
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self.target_obj.location = target_position
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return msg
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def start_render(self, diag=0):
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object_name = self.target_obj.name
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if "." in object_name:
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object_name = object_name.split(".")[0]
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scene_dir = os.path.join(self.output_dir, object_name)
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if not os.path.exists(scene_dir):
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os.makedirs(scene_dir)
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view_num = int(self.min_views + (diag - self.min_diag)/(self.max_diag - self.min_diag) * (self.max_views - self.min_views))
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view_data = ViewSampleUtil.sample_view_data_world_space(self.target_obj, distance_range=(0.25,0.5), voxel_size=0.005, max_views=view_num, min_cam_table_included_degree = self.min_cam_table_included_degree, random_view_ratio = self.random_view_ratio )
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object_points = np.array(view_data["voxel_down_sampled_points"])
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normals = np.array(view_data["normals"])
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points_normals = np.concatenate((object_points, normals), axis=1)
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np.savetxt(os.path.join(scene_dir, "points_and_normals.txt"), points_normals)
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for i, cam_pose in enumerate(view_data["cam_poses"]):
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BlenderUtils.set_camera_at(cam_pose)
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BlenderUtils.render_mask_and_depth(scene_dir, f"{i}", binocular_vision=self.binocular_vision, target_object = self.target_obj)
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BlenderUtils.save_cam_params(scene_dir, i, binocular_vision=self.binocular_vision)
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self.set_progress("render frame", i, len(view_data["cam_poses"]))
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self.set_progress("render frame", len(view_data["cam_poses"]), len(view_data["cam_poses"]))
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BlenderUtils.save_scene_info(scene_dir, self.display_table_config, object_name)
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depth_dir = os.path.join(scene_dir, "depth")
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for depth_file in os.listdir(depth_dir):
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if not depth_file.endswith(".png"):
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name, _ = os.path.splitext(depth_file)
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file_path = os.path.join(depth_dir, depth_file)
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new_file_path = os.path.join(depth_dir, f"{name}.png")
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os.rename(file_path,new_file_path)
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self.change_target_obj_material_to_normal()
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for i, cam_pose in enumerate(view_data["cam_poses"]):
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BlenderUtils.set_camera_at(cam_pose)
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BlenderUtils.render_normal(scene_dir, f"{i}", binocular_vision=self.binocular_vision, target_object = self.target_obj)
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BlenderUtils.save_cam_params(scene_dir, i, binocular_vision=self.binocular_vision)
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self.set_progress("render normal frame", i, len(view_data["cam_poses"]))
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self.set_progress("render normal frame", len(view_data["cam_poses"]), len(view_data["cam_poses"]))
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return True
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def change_target_obj_material_to_normal(self):
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material_name = "normal"
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mat = bpy.data.materials.get(material_name) or bpy.data.materials.new(
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material_name
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)
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mat.use_nodes = True
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node_tree = mat.node_tree
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nodes = node_tree.nodes
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nodes.clear()
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links = node_tree.links
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links.clear()
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# Nodes:
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new_node = nodes.new(type="ShaderNodeMath")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (151.59744262695312, 854.5482177734375)
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new_node.name = "Math"
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new_node.operation = "MULTIPLY"
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new_node.select = False
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new_node.use_clamp = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = 0.5
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new_node.inputs[1].default_value = 1.0
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new_node.inputs[2].default_value = 0.0
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new_node.outputs[0].default_value = 0.0
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new_node = nodes.new(type="ShaderNodeLightPath")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (602.9912719726562, 1046.660888671875)
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new_node.name = "Light Path"
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new_node.select = False
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new_node.width = 140.0
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new_node.outputs[0].default_value = 0.0
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new_node.outputs[1].default_value = 0.0
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new_node.outputs[2].default_value = 0.0
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new_node.outputs[3].default_value = 0.0
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new_node.outputs[4].default_value = 0.0
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new_node.outputs[5].default_value = 0.0
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new_node.outputs[6].default_value = 0.0
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new_node.outputs[7].default_value = 0.0
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new_node.outputs[8].default_value = 0.0
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new_node.outputs[9].default_value = 0.0
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new_node.outputs[10].default_value = 0.0
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new_node.outputs[11].default_value = 0.0
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new_node.outputs[12].default_value = 0.0
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new_node = nodes.new(type="ShaderNodeOutputMaterial")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.is_active_output = True
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new_node.location = (1168.93017578125, 701.84033203125)
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new_node.name = "Material Output"
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new_node.select = False
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new_node.target = "ALL"
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new_node.width = 140.0
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new_node.inputs[2].default_value = [0.0, 0.0, 0.0]
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new_node = nodes.new(type="ShaderNodeBsdfTransparent")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (731.72900390625, 721.4832763671875)
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new_node.name = "Transparent BSDF"
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new_node.select = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = [1.0, 1.0, 1.0, 1.0]
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new_node = nodes.new(type="ShaderNodeCombineXYZ")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (594.4229736328125, 602.9271240234375)
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new_node.name = "Combine XYZ"
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new_node.select = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = 0.0
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new_node.inputs[1].default_value = 0.0
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new_node.inputs[2].default_value = 0.0
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new_node.outputs[0].default_value = [0.0, 0.0, 0.0]
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new_node = nodes.new(type="ShaderNodeMixShader")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (992.7239990234375, 707.2142333984375)
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new_node.name = "Mix Shader"
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new_node.select = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = 0.5
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new_node = nodes.new(type="ShaderNodeEmission")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (774.0802612304688, 608.2547607421875)
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new_node.name = "Emission"
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new_node.select = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = [1.0, 1.0, 1.0, 1.0]
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new_node.inputs[1].default_value = 1.0
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new_node = nodes.new(type="ShaderNodeSeparateXYZ")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (-130.12167358398438, 558.1497802734375)
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new_node.name = "Separate XYZ"
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new_node.select = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = [0.0, 0.0, 0.0]
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new_node.outputs[0].default_value = 0.0
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new_node.outputs[1].default_value = 0.0
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new_node.outputs[2].default_value = 0.0
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new_node = nodes.new(type="ShaderNodeMath")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (162.43240356445312, 618.8094482421875)
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new_node.name = "Math.002"
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new_node.operation = "MULTIPLY"
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new_node.select = False
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new_node.use_clamp = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = 0.5
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new_node.inputs[1].default_value = 1.0
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new_node.inputs[2].default_value = 0.0
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new_node.outputs[0].default_value = 0.0
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new_node = nodes.new(type="ShaderNodeMath")
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# new_node.active_preview = False
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new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
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new_node.location = (126.8158187866211, 364.5539855957031)
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new_node.name = "Math.001"
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new_node.operation = "MULTIPLY"
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new_node.select = False
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new_node.use_clamp = False
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new_node.width = 140.0
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new_node.inputs[0].default_value = 0.5
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new_node.inputs[1].default_value = -1.0
|
|
new_node.inputs[2].default_value = 0.0
|
|
new_node.outputs[0].default_value = 0.0
|
|
|
|
new_node = nodes.new(type="ShaderNodeVectorTransform")
|
|
# new_node.active_preview = False
|
|
new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
|
|
new_node.convert_from = "WORLD"
|
|
new_node.convert_to = "CAMERA"
|
|
new_node.location = (-397.0209045410156, 594.7037353515625)
|
|
new_node.name = "Vector Transform"
|
|
new_node.select = False
|
|
new_node.vector_type = "VECTOR"
|
|
new_node.width = 140.0
|
|
new_node.inputs[0].default_value = [0.5, 0.5, 0.5]
|
|
new_node.outputs[0].default_value = [0.0, 0.0, 0.0]
|
|
|
|
new_node = nodes.new(type="ShaderNodeNewGeometry")
|
|
# new_node.active_preview = False
|
|
new_node.color = (0.6079999804496765, 0.6079999804496765, 0.6079999804496765)
|
|
new_node.location = (-651.8067016601562, 593.0455932617188)
|
|
new_node.name = "Geometry"
|
|
new_node.width = 140.0
|
|
new_node.outputs[0].default_value = [0.0, 0.0, 0.0]
|
|
new_node.outputs[1].default_value = [0.0, 0.0, 0.0]
|
|
new_node.outputs[2].default_value = [0.0, 0.0, 0.0]
|
|
new_node.outputs[3].default_value = [0.0, 0.0, 0.0]
|
|
new_node.outputs[4].default_value = [0.0, 0.0, 0.0]
|
|
new_node.outputs[5].default_value = [0.0, 0.0, 0.0]
|
|
new_node.outputs[6].default_value = 0.0
|
|
new_node.outputs[7].default_value = 0.0
|
|
new_node.outputs[8].default_value = 0.0
|
|
|
|
# Links :
|
|
|
|
links.new(nodes["Light Path"].outputs[0], nodes["Mix Shader"].inputs[0])
|
|
links.new(nodes["Separate XYZ"].outputs[0], nodes["Math"].inputs[0])
|
|
links.new(nodes["Separate XYZ"].outputs[1], nodes["Math.002"].inputs[0])
|
|
links.new(nodes["Separate XYZ"].outputs[2], nodes["Math.001"].inputs[0])
|
|
links.new(nodes["Vector Transform"].outputs[0], nodes["Separate XYZ"].inputs[0])
|
|
links.new(nodes["Combine XYZ"].outputs[0], nodes["Emission"].inputs[0])
|
|
links.new(nodes["Math"].outputs[0], nodes["Combine XYZ"].inputs[0])
|
|
links.new(nodes["Math.002"].outputs[0], nodes["Combine XYZ"].inputs[1])
|
|
links.new(nodes["Math.001"].outputs[0], nodes["Combine XYZ"].inputs[2])
|
|
links.new(nodes["Transparent BSDF"].outputs[0], nodes["Mix Shader"].inputs[1])
|
|
links.new(nodes["Emission"].outputs[0], nodes["Mix Shader"].inputs[2])
|
|
links.new(nodes["Mix Shader"].outputs[0], nodes["Material Output"].inputs[0])
|
|
links.new(nodes["Geometry"].outputs[1], nodes["Vector Transform"].inputs[0])
|
|
|
|
self.target_obj.data.materials.clear()
|
|
self.target_obj.data.materials.append(mat)
|
|
|
|
|
|
|
|
def simulate_scene(self, frame_limit=120, depth = 0, diag = 0):
|
|
bpy.context.view_layer.update()
|
|
bpy.ops.screen.animation_play()
|
|
previous_locations = {obj.name: obj.matrix_world.translation.copy() for obj in bpy.context.scene.objects if obj.rigid_body}
|
|
frame_count = 1
|
|
moving_objects = True
|
|
while frame_count < frame_limit:
|
|
bpy.context.view_layer.update()
|
|
if frame_count%10 == 0:
|
|
moving_objects = self.check_moving_objects(previous_locations)
|
|
if not moving_objects:
|
|
break
|
|
frame_count += 1
|
|
bpy.context.scene.frame_set(bpy.context.scene.frame_current + 1)
|
|
|
|
previous_locations = {obj.name: obj.matrix_world.translation.copy() for obj in bpy.context.scene.objects if obj.rigid_body}
|
|
|
|
bpy.ops.screen.animation_cancel(restore_frame=False)
|
|
|
|
msg = self.check_and_adjust_target()
|
|
|
|
if msg == "adjusted" and depth < 3:
|
|
bpy.context.view_layer.update()
|
|
bpy.context.scene.frame_set(0)
|
|
return self.simulate_scene(depth = depth + 1, diag=diag)
|
|
elif msg == "success":
|
|
print("Scene generation completed.")
|
|
result = self.start_render(diag=diag)
|
|
if not result:
|
|
msg = "fail"
|
|
return msg
|
|
return "retry"
|
|
|
|
def gen_scene_data(self, object_name):
|
|
|
|
bpy.context.scene.frame_set(0)
|
|
self.platform = self.generate_display_platform()
|
|
self.put_display_object(object_name)
|
|
diag = BlenderUtils.get_obj_diag(self.target_obj.name)
|
|
self.set_status("target_diagonal", diag)
|
|
if diag > self.max_diag or diag < self.min_diag:
|
|
self.add_log(f"The diagonal size of the object <{object_name}>(size: {round(diag,3)}) does not meet the requirements.", "error")
|
|
return "diag_error"
|
|
return self.simulate_scene(diag=diag)
|
|
|
|
|
|
def gen_all_scene_data(self):
|
|
max_retry_times = 3
|
|
total = len(self.obj_name_list)
|
|
count = 0
|
|
count_success = 0
|
|
self.set_progress("generate scene", 0, total)
|
|
result = "retry"
|
|
print(f"Generating scene for {total} objects")
|
|
for target_obj_name in self.obj_name_list:
|
|
self.add_log(f"Generating scene for object <{target_obj_name}>", "info")
|
|
scene_info_path = os.path.join(self.output_dir, target_obj_name, "scene_info.json")
|
|
if os.path.exists(scene_info_path):
|
|
self.add_log(f"Scene for object <{target_obj_name}> already exists, skipping", "warning")
|
|
count += 1
|
|
continue
|
|
|
|
retry_times = 0
|
|
self.set_status("target_object", target_obj_name)
|
|
while retry_times < 3 and result == "retry":
|
|
self.reset()
|
|
try:
|
|
result = self.gen_scene_data(target_obj_name)
|
|
except Exception as e:
|
|
self.add_log(f"Uknown error: {e}", "error")
|
|
result = "unknown_error"
|
|
if result == "retry":
|
|
retry_times += 1
|
|
self.add_log(f"Maximum adjust times, retrying <{target_obj_name}>. ({retry_times}/{max_retry_times}) ", "warning")
|
|
count += 1
|
|
if result == "success":
|
|
count_success += 1
|
|
self.add_log(f"Scene for object <{target_obj_name}> generated successfully", "success")
|
|
if result == "retry" and retry_times >= max_retry_times:
|
|
self.add_log(f"Maximum retries, failed to generate scene for object <{target_obj_name}>", "error")
|
|
self.set_status("success", count_success)
|
|
self.set_status("fail", count - count_success)
|
|
self.set_progress("generate scene", count, total)
|
|
result = "retry"
|
|
|
|
|