Yuki Koyama

blender-cli-rendering. Blender Python scripts for rendering images directly from command-line interface

elasty. A research-oriented elastic body simulator

tinycolormap. A header-only, single-file library for colormaps written in C++11

mathtoolbox. Mathematical tools (interpolation, dimensionality reduction, optimization, etc.) written in C++11 with Eigen

bigger. bigg (bgfx + imgui + glfw + glm) + utils

unblending. Decomposing an input image into layers via "color unblending"

position-based-fluids. Position Based Fluids [SIGGRAPH 2013] in C++

color-util. A header-only C++11 library for colors; color space converters for RGB, HSL, XYZ, Lab, etc. and perceptual color difference calculators such as CIEDE2000

sequential-line-search. A Preferential Bayesian optimization library for C++/Python [SIGGRAPH 2017]

bvh11. A tiny C++11 library for reading BVH motion capture data

optimo. Keyframe-based motion editing system using numerical optimization [CHI 2018]

parallel-util. Simple header-only implementation of "parallel_for" and "parallel_map" for C++11

btoon. Blender Addon for Toon Rendering

sequential-gallery. Sequential Gallery for Interactive Visual Design Optimization [SIGGRAPH 2020]

hello-bgfx. Hello-world project for bgfx + GLFW managed by CMake

nlopt-util. A header-only wrapper library for calling NLopt optimization in a single line using Eigen::VectorXd

real-time-example-based-elastic-deformation. Real-Time Example-Based Elastic Deformation [SCA 2012]

split-toning. A Blender addon for simulating the Split Toning effect in Adobe Lightroom/Photoshop

enhancer. A C++11 / GLSL library for enhancing photographs (adjusting brightness, contrast, etc.)

visoptslider. Qt-based implementation of VisOpt Slider widget [UIST 2014] for C++ & Python

rbf-interpolator. [deprecated] Radial Basis Function (RBF) Interpolation written in C++11. This can be used for fitting a non-linear function from scattered data.

cc0assetsloader. A Blender add-on for loading CC0 assets (PBR textures, HDR images, etc.)

nodelayout. A Blender add-on for automatic layout of nodes

latexie. Utilities for writing papers with LaTeX

armature-proxy-mesh. A Blender add-on for easy creation of proxy meshes for a selected armature object

selph. Machine learning-based photo color enhancement system [CHI 2016]

constrained-optimization-tests. Simple implementation of constrained optimization methods, including the penalty method and the augmented Lagrangian method

siggraph-jp-papers. SIGGRAPH Papers by Japanese Researchers

three-dim-util. A utility library for prototyping 3D applications based on Qt, Eigen, and legacy OpenGL

hello-tbb-cmake. A hello-world project for testing "parallel_for" in Intel TBB. The whole project (including TBB) is built using CMake.

multidimensional-scaling. [deprecated] A header-only C++ library of the multidimensional scaling (MDS)

pycolormap. A self-contained colormap library for Python

siggraph-2025-summary. Python

imagedistance. Given two images, calculate their distance in several criteria

filesystem-util. C++11 utility functions for handling files (currently only for UNIX/Linux)

qt-animated-layout-example. A custom animated layout example in Qt5

easy-qhull. A helper repository to use qhull in cmake-based c++ projects

academic-illustration-assets. Assets for creating illustrative figures (and video figures) released under CC0 (public domain)

timer. Execution timer for measuring elapsed times for code blocks written in C++11

string-util. Utility functions for <string> in C++11

pyenhancer. A tiny NumPy-based library for image color enhancement

optimization-test-functions. A set of test functions to evaluate optimization algorithms written in C++11

cgi-2019-program. List of the papers presented at CGI 2019

hello-alembic. Just a hello-world project to start learning the Alembic library

rand-util. Utility functions for <random> in c++11

hello-trello-api. Toy Python scripts using Trello's REST API