build_obj_and_foot/blender/autofix.py

from math import radians
import sys, os, time, bpy, requests, json, bmesh
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import platform
if platform.system() == 'Windows':
    sys.path.append('e:\\libs\\')
else:
    sys.path.append('/data/deploy/make3d/make2/libs/')
import config

def get_obj_version(filename):
    with open(filename, 'r') as f:
        for line in f:
            if line.startswith('# Engine version'):
                return float(line.split(' ')[-1][1:].strip()[:3])
                exit(0)
    return None

def delete_lines_in_file(filename, count):
    with open(filename, 'r') as f:
        lines = f.readlines()
        lines = lines[count:]
        with open(filename, 'w') as f:
            f.writelines(lines)

def diff_minutes_and_seconds(start):
    hours = int((time.time() - start) / 3600)
    minutes = int((time.time() - start) / 60)
    seconds = int((time.time() - start) % 60)
    microseconds = int(int((time.time() - start) * 1000000) % 1000000 / 1000)
    return f'{hours}:{minutes}:{seconds}.{microseconds}'

def get_headcount(pid):
    res = requests.get(config.urls['get_printinfo_url'], params={'id': pid})
    print('get_printsize_url:', res.url)
    print('res:', res.text)
    if res.status_code != 200:
        print('获取人数失败，程序退出')
        exit(1)
    res = json.loads(res.text)
    return res['data']['headcount']

def bmesh_copy_from_object(obj, transform=True, triangulate=True, apply_modifiers=False):
    """Returns a transformed, triangulated copy of the mesh"""
    assert obj.type == 'MESH'
    if apply_modifiers and obj.modifiers:
        import bpy
        depsgraph = bpy.context.evaluated_depsgraph_get()
        obj_eval = obj.evaluated_get(depsgraph)
        me = obj_eval.to_mesh()
        bm = bmesh.new()
        bm.from_mesh(me)
        obj_eval.to_mesh_clear()
    else:
        me = obj.data
        if obj.mode == 'EDIT':
            bm_orig = bmesh.from_edit_mesh(me)
            bm = bm_orig.copy()
        else:
            bm = bmesh.new()
            bm.from_mesh(me)
    if transform:
        matrix = obj.matrix_world.copy()
        if not matrix.is_identity:
            bm.transform(matrix)
            matrix.translation.zero()
            if not matrix.is_identity:
                bm.normal_update()
    if triangulate:
        bmesh.ops.triangulate(bm, faces=bm.faces)
    return bm

def getPSid(pid):
    get_psid_url = 'https://mp.api.suwa3d.com/api/customerP3dLog/photoStudio'
    res = requests.get(get_psid_url, params={'pid': pid})
    res = json.loads(res.text)
    return str(res['data'])

def getPSRotation(pid):
    get_ps_rotation_url = 'https://mp.api.suwa3d.com/api/takephotoOrder/angle'
    res = requests.get(get_ps_rotation_url, params={'pid': pid})
    res = json.loads(res.text)
    rotation = (radians(0), radians(0), radians(int(res['data'])))
    return rotation

def main():
    start = time.time()
    workdir = 'e:\\'

    if len(sys.argv) - (sys.argv.index("--") +1) < 1:
        print("Usage: blender -b -P autofix.py -- <pids>")
        sys.exit(1)
    input_file = sys.argv[sys.argv.index("--") + 1]

    for pid in input_file.split(','):
        psid = getPSid(pid)

        bpy.ops.wm.read_homefile()
        # bpy.context.scene.unit_settings.scale_length = 0.001
        bpy.context.scene.unit_settings.length_unit = 'CENTIMETERS'
        bpy.context.scene.unit_settings.mass_unit = 'GRAMS'
        bpy.ops.object.delete(use_global=False, confirm=False)

        filename = f'{workdir}{pid}\\output\{pid}.obj'
        print('正在处理:', filename)
        bpy.ops.import_scene.obj(filepath=filename)
        bpy.ops.object.align(align_mode='OPT_1', relative_to='OPT_2', align_axis={'Z'})
        print('import obj time:', diff_minutes_and_seconds(start))

        # rotate obj
        obj = bpy.context.selected_objects[0]
        bpy.context.view_layer.objects.active = obj
        obj.select_set(True)
        rotation = getPSRotation(pid)
        print('rotation:', rotation)
        obj.rotation_euler = rotation
        print('rotate obj time:', diff_minutes_and_seconds(start))
        # resize object
        scale = 90 / obj.dimensions.z
        obj.scale = (scale, scale, scale)
        bpy.ops.object.origin_set(type='ORIGIN_CENTER_OF_VOLUME', center='MEDIAN')
        bpy.context.object.location[0] = 0
        bpy.context.object.location[1] = 0
        bpy.ops.object.transform_apply(location=True, rotation=True, scale=True)
        # bpy.ops.wm.save_as_mainfile(filepath=f'{workdir}{pid}\\output\{pid}_4.blend')
        
        bm = bmesh_copy_from_object(obj)
        obj_volume = round(bm.calc_volume() / 1000, 3)
        print('volume:', obj_volume)
        print('weight:', obj_volume * 1.2, 'g')

        faces = len(obj.data.polygons)
        print('faces:', faces)
                
        # save object
        bpy.ops.export_scene.obj(filepath=f'{workdir}{pid}\\output\{pid}.obj')

        # 生成数字模型
        headcount = get_headcount(pid)
        faces_dest = 120000 * headcount

        # 减面
        faces_current = len(obj.data.polygons)
        bpy.ops.object.modifier_add(type='DECIMATE')
        bpy.context.object.modifiers["Decimate"].ratio = faces_dest / faces_current
        bpy.ops.object.modifier_apply(modifier="Decimate")

        bpy.ops.export_scene.gltf(filepath=os.path.join(workdir, pid, 'output', f'{pid}_decimate.glb'), export_format='GLB', export_apply=True, export_jpeg_quality=100, export_draco_mesh_compression_enable=False)

        config.oss_bucket.put_object_from_file(f'glbs/3d/{pid}.glb', os.path.join(workdir, pid, 'output', f'{pid}_decimate.glb'))
        print('免费体验3d相册已生成，上传glb文件:', f'glbs/3d/{pid}.glb 完成')
        # render scene to a file
        # bpy.context.scene.render.filepath = f'{workdir}{pid}_fixed.png'
        # bpy.ops.render.render(write_still=True, use_viewport=True)
        print('render time:', diff_minutes_and_seconds(start))
        
        bpy.ops.wm.quit_blender()

if __name__ == '__main__':
    main()