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inference.py

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+import numpy as np
+import torch
+import time
+import nvdiffrast.torch as dr
+from util.utils import get_tri
+import tempfile
+from mesh import Mesh
+import zipfile
+from util.renderer import Renderer
+def generate3d(model, rgb, ccm, device):
+
+    model.renderer = Renderer(tet_grid_size=model.tet_grid_size, camera_angle_num=model.camera_angle_num,
+                                scale=model.input.scale, geo_type = model.geo_type)
+
+    color_tri = torch.from_numpy(rgb)/255
+    xyz_tri = torch.from_numpy(ccm[:,:,(2,1,0)])/255
+    color = color_tri.permute(2,0,1)
+    xyz = xyz_tri.permute(2,0,1)
+
+
+    def get_imgs(color):
+        # color : [C, H, W*6]
+        color_list = []
+        color_list.append(color[:,:,256*5:256*(1+5)])
+        for i in range(0,5):
+            color_list.append(color[:,:,256*i:256*(1+i)])
+        return torch.stack(color_list, dim=0)# [6, C, H, W]
+    
+    triplane_color = get_imgs(color).permute(0,2,3,1).unsqueeze(0).to(device)# [1, 6, H, W, C]
+
+    color = get_imgs(color)
+    xyz = get_imgs(xyz)
+
+    color = get_tri(color, dim=0, blender= True, scale = 1).unsqueeze(0)
+    xyz = get_tri(xyz, dim=0, blender= True, scale = 1, fix= True).unsqueeze(0)
+
+    triplane = torch.cat([color,xyz],dim=1).to(device)
+    # 3D visualize
+    model.eval()
+    
+
+    if model.denoising == True:
+        tnew = 20
+        tnew = torch.randint(tnew, tnew+1, [triplane.shape[0]], dtype=torch.long, device=triplane.device)
+        noise_new = torch.randn_like(triplane) *0.5+0.5
+        triplane = model.scheduler.add_noise(triplane, noise_new, tnew)    
+        start_time = time.time()
+        with torch.no_grad():
+            triplane_feature2 = model.unet2(triplane,tnew)
+        end_time = time.time()
+        elapsed_time = end_time - start_time
+        print(f"unet takes {elapsed_time}s")
+    else:
+        triplane_feature2 = model.unet2(triplane)
+        
+
+    with torch.no_grad():
+        data_config = {
+            'resolution': [1024, 1024],
+            "triview_color": triplane_color.to(device),
+        }
+
+        verts, faces = model.decode(data_config, triplane_feature2)
+
+        data_config['verts'] = verts[0]
+        data_config['faces'] = faces
+        
+
+    from kiui.mesh_utils import clean_mesh
+    verts, faces = clean_mesh(data_config['verts'].squeeze().cpu().numpy().astype(np.float32), data_config['faces'].squeeze().cpu().numpy().astype(np.int32), repair = False, remesh=True, remesh_size=0.005, remesh_iters=1)
+    data_config['verts'] = torch.from_numpy(verts).cuda().contiguous()
+    data_config['faces'] = torch.from_numpy(faces).cuda().contiguous()
+
+    start_time = time.time()
+    with torch.no_grad():
+        mesh_path_glb = tempfile.NamedTemporaryFile(suffix=f"", delete=False).name
+        model.export_mesh(data_config, mesh_path_glb, tri_fea_2 = triplane_feature2)
+
+        # glctx = dr.RasterizeGLContext()#dr.RasterizeCudaContext()
+        # mesh_path_obj = tempfile.NamedTemporaryFile(suffix=f"", delete=False).name
+        # model.export_mesh_wt_uv(glctx, data_config, mesh_path_obj, "", device, res=(1024,1024), tri_fea_2=triplane_feature2)
+
+        # mesh = Mesh.load(mesh_path_obj+".obj", bound=0.9, front_dir="+z")
+        # mesh_path_glb = tempfile.NamedTemporaryFile(suffix=f"", delete=False).name
+        # mesh.write(mesh_path_glb+".glb")
+
+        # # mesh_obj2 = trimesh.load(mesh_path_glb+".glb", file_type='glb')
+        # # mesh_path_obj2 = tempfile.NamedTemporaryFile(suffix=f"", delete=False).name
+        # # mesh_obj2.export(mesh_path_obj2+".obj")
+
+        # with zipfile.ZipFile(mesh_path_obj+'.zip', 'w') as myzip:
+        #     myzip.write(mesh_path_obj+'.obj', mesh_path_obj.split("/")[-1]+'.obj')
+        #     myzip.write(mesh_path_obj+'.png', mesh_path_obj.split("/")[-1]+'.png')
+        #     myzip.write(mesh_path_obj+'.mtl', mesh_path_obj.split("/")[-1]+'.mtl')
+
+    end_time = time.time()
+    elapsed_time = end_time - start_time
+    print(f"uv takes {elapsed_time}s")
+    return mesh_path_glb+".obj"