Pytorch3d 使用pytorch3d.renderer.PerspectiveCameras
使用自己的相机参数,记得设置in_ndc=False原本写法:cameras=pytorch3d.renderer.PerspectiveCameras(image_size=(height,width),device=device,focal_length=((cams['fx'],cams['fy']),),principal_point=((cams['center_x'],cams['ce