Predict SDF and deformation for tetrahedron vertices :param planes: triplane feature map for the geometry

Predict Texture given triplanes :param planes: the triplane feature map :param tex_pos: Position we want to query the texture

This method allows to interpolate the pre-trained position encodings, to be able to use the model on higher resolution images.

replace background pixel with random color in rendering

Does a projection of a 3D point onto a batch of 2D planes, returning 2D plane coordinates. Takes plane axes of shape n_planes, 3, 3

Function to render a generated mesh with nvdiffrast :param mesh_v: List of vertices for the mesh :param mesh_f: List of faces

Return the rotation matrix associated with counterclockwise rotation about the given axis by theta radians.

Return depths of importance sampled points along rays. See NeRF importance sampling for more.

Sample @N_importance samples from @bins with distribution defined by @weights. Inputs: bins: (N_rays, N_samples_+1) where

Transform points. Args: points: Tensor containing 3D points with shape [minibatch_size, num_vertices, 3] or [1, num_vertices, 3] m

x: arbitrary shape of tensor. dim: cat dim

r""" Main function for mesh extraction from scalar field using FlexiCubes. This function converts discrete signed distance fields, en