DSS: Differentiable Surface Splatting

| Paper PDF | Project page | | ----------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------ |

code for paper Differentiable Surface Splatting for Point-based Geometry Processing

+ Mar 2021: major updates tag 2.0.
+ > Now supports simultaneous normal and point position updates.
+ > Unified learning rate using Adam optimizer.
+ > Highly optimized cuda operations
+ > Shares pytorch3d structure

• DSS: Differentiable Surface Splatting
  • Installation
  • Demos
    • inverse rendering - shape deformation
    • ~~denoising (TBA)~~
  • video
  • cite
  • Acknowledgement

Installation

1. install prequisitories. Our code uses python 3.8, pytorch 1.6.0, pytorch3d 0.2.5. the installation instruction requires the latest anaconda.

# we tested with cuda 10.2, pytorch 1.6.0, and pytorch 0.2.5
# install requirements
conda create -n DSS python=3.8
conda activate DSS
conda install -c pytorch pytorch=1.6.0 torchvision cudatoolkit=10.2
conda install -c fvcore -c iopath -c conda-forge fvcore iopath
conda install -c bottler nvidiacub
conda install -c pytorch3d pytorch3d=0.2.5
pip install -r requirements.txt
pip install "git+https://github.com/mmolero/pypoisson.git"

2. clone and compile

git clone --recursive https://github.com/yifita/DSS.git
cd DSS
# if you have cloned it without `--recusive`, you can execute this command under DSS/
# git submodule update --init --recursive
# compile external dependencies
cd external/prefix_sum
pip install .
cd ../FRNN
pip install .
cd ../torch-batch-svd
pip install .
# compile library
cd ../..
pip install -e .

Demos

inverse rendering - shape deformation

# create mvr images using intrinsics defined in the script
python scripts/create_mvr_data_from_mesh.py --points example_data/mesh/yoga6.ply --output example_data/images --num_cameras 128 --image-size 512 --tri_color_light --point_lights --has_specular

python train_mvr.py --config configs/dss.yml

Check the optimization process in tensorboard.

tensorboard --logdir=exp/dss_proj

~~denoising (TBA)~~

We will add back this function ASAP.

video

<!-- [Accompanying video](https://youtu.be/Q8iTkmIky0o) -->

cite

Please cite us if you find the code useful!

@article{Yifan:DSS:2019,
author = {Yifan, Wang and
          Serena, Felice and
          Wu, Shihao and
          {\"{O}}ztireli, Cengiz and
         Sorkine{-}Hornung, Olga},
title = {Differentiable Surface Splatting for Point-based Geometry Processing},
journal = {ACM Transactions on Graphics (proceedings of ACM SIGGRAPH ASIA)},
volume = {38},
number = {6},
year = {2019},
}

Acknowledgement

We would like to thank Federico Danieli for the insightful discussion, Phillipp Herholz for the timely feedack, Romann Weber for the video voice-over and Derek Liu for the help during the rebuttal. This work was supported in part by gifts from Adobe, Facebook and Snap, Inc.