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| import os | |
| from PIL import Image | |
| from scripts.mesh_init import build_mesh, calc_w_over_h, fix_border_with_pymeshlab_fast | |
| from scripts.project_mesh import multiview_color_projection | |
| from scripts.refine_lr_to_sr import run_sr_fast | |
| from scripts.utils import simple_clean_mesh | |
| from gradio_app.utils import simple_remove, split_image | |
| from gradio_app.custom_models.normal_prediction import predict_normals | |
| from mesh_reconstruction.recon import reconstruct_stage1 | |
| from mesh_reconstruction.refine import run_mesh_refine | |
| from scripts.project_mesh import get_cameras_list | |
| from scripts.utils import from_py3d_mesh, to_pyml_mesh | |
| from pytorch3d.structures import Meshes, join_meshes_as_scene | |
| import numpy as np | |
| def fast_geo(front_normal: Image.Image, back_normal: Image.Image, side_normal: Image.Image, clamp=0., init_type="std"): | |
| if front_normal.mode == "RGB": | |
| front_normal = simple_remove(front_normal, run_sr=False) | |
| front_normal = front_normal.resize((192, 192)) | |
| if back_normal.mode == "RGB": | |
| back_normal = simple_remove(back_normal, run_sr=False) | |
| back_normal = back_normal.resize((192, 192)) | |
| if side_normal.mode == "RGB": | |
| side_normal = simple_remove(side_normal, run_sr=False) | |
| side_normal = side_normal.resize((192, 192)) | |
| # build mesh with front back projection # ~3s | |
| side_w_over_h = calc_w_over_h(side_normal) | |
| mesh_front = build_mesh(front_normal, front_normal, clamp_min=clamp, scale=side_w_over_h, init_type=init_type) | |
| mesh_back = build_mesh(back_normal, back_normal, is_back=True, clamp_min=clamp, scale=side_w_over_h, init_type=init_type) | |
| meshes = join_meshes_as_scene([mesh_front, mesh_back]) | |
| meshes = fix_border_with_pymeshlab_fast(meshes, poissson_depth=6, simplification=2000) | |
| return meshes | |
| def refine_rgb(rgb_pils, front_pil): | |
| from scripts.refine_lr_to_sr import refine_lr_with_sd | |
| from scripts.utils import NEG_PROMPT | |
| from gradio_app.utils import make_image_grid | |
| from gradio_app.all_models import model_zoo | |
| from gradio_app.utils import rgba_to_rgb | |
| rgb_pil = make_image_grid(rgb_pils, rows=2) | |
| prompt = "4views, multiview" | |
| neg_prompt = NEG_PROMPT | |
| control_image = rgb_pil.resize((1024, 1024)) | |
| refined_rgb = refine_lr_with_sd([rgb_pil], [rgba_to_rgb(front_pil)], [control_image], prompt_list=[prompt], neg_prompt_list=[neg_prompt], pipe=model_zoo.pipe_disney_controlnet_tile_ipadapter_i2i, strength=0.2, output_size=(1024, 1024))[0] | |
| refined_rgbs = split_image(refined_rgb, rows=2) | |
| return refined_rgbs | |
| def erode_alpha(img_list): | |
| out_img_list = [] | |
| for idx, img in enumerate(img_list): | |
| arr = np.array(img) | |
| alpha = (arr[:, :, 3] > 127).astype(np.uint8) | |
| # erode 1px | |
| import cv2 | |
| alpha = cv2.erode(alpha, np.ones((3, 3), np.uint8), iterations=1) | |
| alpha = (alpha * 255).astype(np.uint8) | |
| img = Image.fromarray(np.concatenate([arr[:, :, :3], alpha[:, :, None]], axis=-1)) | |
| out_img_list.append(img) | |
| return out_img_list | |
| def geo_reconstruct(rgb_pils, normal_pils, front_pil, do_refine=False, predict_normal=True, expansion_weight=0.1, init_type="std"): | |
| if front_pil.size[0] <= 512: | |
| front_pil = run_sr_fast([front_pil])[0] | |
| if do_refine: | |
| refined_rgbs = refine_rgb(rgb_pils, front_pil) # 6s | |
| else: | |
| refined_rgbs = [rgb.resize((512, 512), resample=Image.LANCZOS) for rgb in rgb_pils] | |
| img_list = [front_pil] + run_sr_fast(refined_rgbs[1:]) | |
| if predict_normal: | |
| rm_normals = predict_normals([img.resize((512, 512), resample=Image.LANCZOS) for img in img_list], guidance_scale=1.5) | |
| else: | |
| rm_normals = simple_remove([img.resize((512, 512), resample=Image.LANCZOS) for img in normal_pils]) | |
| # transfer the alpha channel of rm_normals to img_list | |
| for idx, img in enumerate(rm_normals): | |
| if idx == 0 and img_list[0].mode == "RGBA": | |
| temp = img_list[0].resize((2048, 2048)) | |
| rm_normals[0] = Image.fromarray(np.concatenate([np.array(rm_normals[0])[:, :, :3], np.array(temp)[:, :, 3:4]], axis=-1)) | |
| continue | |
| img_list[idx] = Image.fromarray(np.concatenate([np.array(img_list[idx]), np.array(img)[:, :, 3:4]], axis=-1)) | |
| assert img_list[0].mode == "RGBA" | |
| assert np.mean(np.array(img_list[0])[..., 3]) < 250 | |
| img_list = [img_list[0]] + erode_alpha(img_list[1:]) | |
| normal_stg1 = [img.resize((512, 512)) for img in rm_normals] | |
| if init_type in ["std", "thin"]: | |
| meshes = fast_geo(normal_stg1[0], normal_stg1[2], normal_stg1[1], init_type=init_type) | |
| _ = multiview_color_projection(meshes, rgb_pils, resolution=512, device="cuda", complete_unseen=False, confidence_threshold=0.1) # just check for validation, may throw error | |
| vertices, faces, _ = from_py3d_mesh(meshes) | |
| vertices, faces = reconstruct_stage1(normal_stg1, steps=200, vertices=vertices, faces=faces, start_edge_len=0.1, end_edge_len=0.02, gain=0.05, return_mesh=False, loss_expansion_weight=expansion_weight) | |
| elif init_type in ["ball"]: | |
| vertices, faces = reconstruct_stage1(normal_stg1, steps=200, end_edge_len=0.01, return_mesh=False, loss_expansion_weight=expansion_weight) | |
| normal_stg2 = [img.resize((1024, 1024)) for img in rm_normals] # reduce computation on huggingface demo, use 1024 instead of 2048 | |
| vertices, faces = run_mesh_refine(vertices, faces, normal_stg2, steps=100, start_edge_len=0.02, end_edge_len=0.005, decay=0.99, update_normal_interval=20, update_warmup=5, return_mesh=False, process_inputs=False, process_outputs=False) | |
| meshes = simple_clean_mesh(to_pyml_mesh(vertices, faces), apply_smooth=True, stepsmoothnum=1, apply_sub_divide=True, sub_divide_threshold=0.25).to("cuda") | |
| new_meshes = multiview_color_projection(meshes, img_list, resolution=1024, device="cuda", complete_unseen=True, confidence_threshold=0.2, cameras_list = get_cameras_list([0, 90, 180, 270], "cuda", focal=1)) | |
| return new_meshes | |
| ######################## | |
| import spaces | |
| def geo_reconstruct_part1(rgb_pils, normal_pils, front_pil, do_refine=False, predict_normal=True, expansion_weight=0.1, init_type="std"): | |
| if front_pil.size[0] <= 512: | |
| front_pil = run_sr_fast([front_pil])[0] | |
| if do_refine: | |
| refined_rgbs = refine_rgb(rgb_pils, front_pil) # 6s | |
| else: | |
| refined_rgbs = [rgb.resize((512, 512), resample=Image.LANCZOS) for rgb in rgb_pils] | |
| img_list = [front_pil] + run_sr_fast(refined_rgbs[1:]) | |
| if predict_normal: | |
| rm_normals = predict_normals([img.resize((512, 512), resample=Image.LANCZOS) for img in img_list], guidance_scale=1.5) | |
| else: | |
| rm_normals = simple_remove([img.resize((512, 512), resample=Image.LANCZOS) for img in normal_pils]) | |
| # transfer the alpha channel of rm_normals to img_list | |
| for idx, img in enumerate(rm_normals): | |
| if idx == 0 and img_list[0].mode == "RGBA": | |
| temp = img_list[0].resize((2048, 2048)) | |
| rm_normals[0] = Image.fromarray(np.concatenate([np.array(rm_normals[0])[:, :, :3], np.array(temp)[:, :, 3:4]], axis=-1)) | |
| continue | |
| img_list[idx] = Image.fromarray(np.concatenate([np.array(img_list[idx]), np.array(img)[:, :, 3:4]], axis=-1)) | |
| assert img_list[0].mode == "RGBA" | |
| assert np.mean(np.array(img_list[0])[..., 3]) < 250 | |
| img_list = [img_list[0]] + erode_alpha(img_list[1:]) | |
| normal_stg1 = [img.resize((512, 512)) for img in rm_normals] | |
| if init_type in ["std", "thin"]: | |
| meshes = fast_geo(normal_stg1[0], normal_stg1[2], normal_stg1[1], init_type=init_type) | |
| _ = multiview_color_projection(meshes, rgb_pils, resolution=512, device="cuda", complete_unseen=False, confidence_threshold=0.1) # just check for validation, may throw error | |
| vertices, faces, _ = from_py3d_mesh(meshes) | |
| vertices, faces = reconstruct_stage1(normal_stg1, steps=200, vertices=vertices, faces=faces, start_edge_len=0.1, end_edge_len=0.02, gain=0.05, return_mesh=False, loss_expansion_weight=expansion_weight) | |
| elif init_type in ["ball"]: | |
| vertices, faces = reconstruct_stage1(normal_stg1, steps=200, end_edge_len=0.01, return_mesh=False, loss_expansion_weight=expansion_weight) | |
| normal_stg2 = [img.resize((1024, 1024)) for img in rm_normals] # reduce computation on huggingface demo, use 1024 instead of 2048 | |
| vertices, faces = run_mesh_refine(vertices, faces, normal_stg2, steps=100, start_edge_len=0.02, end_edge_len=0.005, decay=0.99, update_normal_interval=20, update_warmup=5, return_mesh=False, process_inputs=False, process_outputs=False) | |
| return vertices, faces, img_list | |
| # no GPU | |
| def geo_reconstruct_part2(vertices, faces): | |
| meshes = simple_clean_mesh(to_pyml_mesh(vertices, faces), apply_smooth=True, stepsmoothnum=1, apply_sub_divide=True, sub_divide_threshold=0.25) | |
| return meshes | |
| def geo_reconstruct_part3(meshes, img_list): | |
| meshes = meshes.to("cuda") | |
| new_meshes = multiview_color_projection(meshes, img_list, resolution=1024, device="cuda", complete_unseen=True, confidence_threshold=0.2, cameras_list = get_cameras_list([0, 90, 180, 270], "cuda", focal=1)) | |
| return new_meshes.to("cpu") | |