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Parser expert with 3D graphics experience.
Familiar with Linux software development.

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Homepage

onlyuser.github.io
New site
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index.html	Dynamic HTML tabs in JavaScript
index.html	Restore previously opened tabs in JavaScript
index.html	Set cookies in JavaScript
index.html	Embed style sheets in HTML

readme

n/a

zip

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3D Graphics

dexvt-lite
3D Inverse Kinematics
with Constraints
and...
GPU Ray Tracing!

GPU Ray Tracing

Stewart Platform

Delta Robot

Hexapod

Spider + Height Map

Fanta Can Challenge - Level II
(ABB Robotics original demo)

3D Boids

"Hinge" Constraints

dexvt-test
3D Engine
(c++/glsl/glm
rendering demo)


$dexvt-test_ripple_refraction$

Inverse Kinematics & Robot Control

TransformObject.cpp	3D Inverse Kinematics (CCD)
TransformObject.cpp	3D Inverse Kinematics with end-effector orientation constraints
TransformObject.cpp	3D Inverse Kinematics joint constraints
[#1] [#2]	Gimbal-lock-free rotations specified using Euler angles
KeyframeMgr.cpp	Bezier spline keyframe interpolation
TransformObject.cpp	3D Boid update function

Hierarchical Transform

TransformObject.cpp	Forward kinematics
TransformObject.cpp	Relink a hierarchical object
Mesh.cpp	Flatten a hierarchical object
Mesh.cpp	Re-pivot a hierarchical object
TransformObject.cpp	Re-orient a hierarchical object

3D Engine Misc

Modifiers.cpp	CPU mesh tessellation
env_mapped_2.f.glsl	Backface refraction shader
PrimitiveFactory.cpp	Round brilliant diamond mesh generator
PrimitiveFactory.cpp	Geosphere mesh generator

File IO

[3ds]

Model file reader (Autodesk 3D Studio)

Misc

env_mapped.f.glsl

Environment map shader

dexvt-test

dexvt-lite

MMDLoader
Contributor to syoyo's excellent
skeletal animation viewer
(c++/glm/Bullet/CMake)

viewer_main.cc	Bullet physics (commit #9)
viewer_main.cc	Euler camera
viewer_main.cc	Split screen vr (commit #15)

n/a

stablefluids
Contributor to Dongli Zhang's's excellent
Navier-Stokes fluid simulator
(c++/Make)

main.cpp

Makefile & PNG support (commit #1)

readme

n/a

zip

dexvt-saba-mmd
MMD viewer that uses benikabocha's
excellent MMD loader
(c++/Make)

[pmd/pmx/vmd]

Model file reader adaptor

readme

n/a

zip

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parse-english
Natural Language
Processing
(A minimum viable
English parser)

TryAllParses.cpp	Algorithm Kernel
[.y] [.l]	LexYacc English grammar

readme

screenshot1

zip

NatLang
Natural Language
Processing
(English parser
that depends on
WordNet)

TryAllParses.cpp	Algorithm Kernel
[.y] [.l]	LexYacc English grammar

simple-neural-net-example
Simple Neural Net Example
(new version)

main.c	Algorithm kernel (one training iteration)
main.c	Transfer function
main.c	Reverse transfer function

readme

screenshot

zip

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GPGPU

(The nVidia logo is a
registered trademark
of nVidia
corporation)

dexvt-gpgpu-ping-pong-technique
GPGPU Ping-pong Technique

Conway's Game of Life

Maze Solver

main_conway.cpp	The elusive ping-pong swap
overlay_conway.f.glsl	Conway's Game of Life shader
overlay_conway_heatmap.f.glsl	Conway heatmap shader
overlay_maze_distfield.f.glsl	Distance field shader
overlay_maze_prune.f.glsl	Maze prune shader
overlay_maze_grow.f.glsl	Maze grow shader
overlay_maze_heatmap.f.glsl	Maze heatmap shader

readme

screenshot

zip

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Parsers

XLang
Parser framework
(language modeling)

Visitor Pattern

XLangPrinter.cpp	AST visitor implementation
NodeEvaluator.cpp	Calculator example using AST visitor

Lexer Techniques

XLang.l	Parse Scott Meyer's "Most Vexing Parse" using stateful lexing
XLang.l	Parse C include statements using multiple buffers
XLang.l	Parse C define statements using unput
XLang.l	Parse an in-memory buffer without re-defining YY_INPUT

readme

screenshot

zip

ebnf2yacc
Yacc preprocessor
(Kleene closure)

TreeRewriter.cpp

Algorithm kernel

readme

n/a

zip

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Misc

Sandbox
Experimental code

Featured

test_c [c++14 #1] [c++14 #2] [c++0x]	Exploring r-value references
test_regex	Regex capture groups in C++
test_backtrace	Dump callstack in C++

String Manipulation

test_tokenize	Tokenize an arbitrary character delimited string in C++ (without strtok)
test_tokenize	Tokenize a space delimited string in C++ (without strtok)
test_unicode	Convert UTF8 to UCS4 and back in C++ (using Boost)

Design Patterns

test_visitor [.cpp] [.h]

Visitor pattern with double-dispatch in C++

Language Study

test_c/pre_0x	Pass a C-style array with size information
test_c/pre_0x	Variations of Scott Meyer's "Most Vexing Parse" in C++ (using RTTI)

Misc

test_functor	Sort an array using a custom functor in C++
test_functor	Find an element in an array using a custom functor in C++
test_fork	Sandbox code that corrupts program state in C++
test_pipe	Convert an in-memory buffer to FILE* in C++

readme

n/a

zip

Category	Project	Code Sample	Readme	Screenshot	Build Status	Download
Scripts	gen-callgraph Generate call graph from elf binary	script	readme	screenshot	n/a	zip
	gen-ctags Generate ctags from elf binary	script	readme	n/a	n/a	zip
	rm-dup Remove duplicate files	script	readme	n/a	n/a	zip
	tor-exit-dl Find Tor exit nodes	script	readme	n/a	n/a	zip
	rt-dl Query RottenTomatoes film ratings	script	readme	n/a	n/a	zip
	imdb-dl Query IMDB film ratings	script	readme	n/a	n/a	zip
sh Handy shell scripts	n/a	readme	n/a	n/a	zip

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Graphviz

taipei-mrt
Subway graph
(Taipei MRT Graphviz dot
台北捷運系統Graphviz dot地圖)

[radial]
[with GPS coords]
[tree layout]

Graphviz dot specification

n/a

hongkong-mtr
Subway graph
(HongKong MTR Graphviz dot
香港地鐵系統Graphviz dot地圖)

[radial]
[tree layout]

Graphviz dot specification

n/a

tokyo-metro
Subway graph
(Tokyo Metro Graphviz dot
東京地鐵系統Graphviz dot地圖)

[radial]
[tree layout]

Graphviz dot specification

n/a

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Linux

gnu-tools
Build recipes
(gnu-tools)

bison	Makefile for building bison
gcc	Makefile for building gcc

readme

n/a

zip

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Travel

July-2016-California

california_itinerary.html

Itinerary

n/a

July-2017-Hokkaido

hokkaido_itinerary.html

Itinerary

n/a

July-2018-Hokkaido

hokkaido_2_itinerary.html

Itinerary

n/a

August-2019-Hokkaido

hokkaido_3_itinerary.html

Itinerary

n/a

Legacy Projects

Category

Project

Code Sample

Year

Language, OS

Readme

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Download

3D Graphics

DexVT
3D Engine in C++
(OpenGL)

[3ds]

Model file reader

[bmp]

Bitmap file reader/writer

Vector.cpp

Matrix.cpp

Transform.cpp

Math APIs

Grad

C++, Win32

Dex3d
3D Engine in C++
(software rendering)

n/a

High
School

C++, Win32

readme

screenshot

zip

RCEE
3D Wireframe Editor
for Dex3D
(software rendering)

n/a

High
School

Visual Basic,
Win32

Dex3d
3D Engine in
Visual Basic
(software rendering)

[3ds]	Model file reader (Autodesk 3D Studio)
Math.bas	Math APIs
Primitives.bas	Primitive factory

High
School

Visual Basic
Win32

Category

Project

Code Sample

Year

Language, OS

Readme

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N_Net
Object Oriented Neural Net

N_Net.cpp	Algorithm kernel (one training iteration)
Node.cpp	Transfer function
Node.cpp	Reverse transfer function

Undergrad

C++, Win32

readme

screenshot

zip

bpNet
Simple Neural Net Example
(old version)

bpNet.cpp	Algorithm kernel (one training iteration)
bpNet.cpp	Transfer function
bpNet.cpp	Reverse transfer function

Undergrad

C++, Win32

Rca
Swarming Boids

Algorithm kernel

High
School

Visual Basic,
Win32

readme

screenshot

zip

Path Finder
Roadmap constructing
Boids

Module2.bas

Algorithm kernel

High
School

Visual Basic,
Win32

readme

n/a

zip

Prolog
Prolog interpreter

Module2.bas

Algorithm kernel

Undergrad

Visual Basic,
Win32

readme

screenshot

zip

ksom
Self-Organizing Map
(k-means)

kmap.cpp

Algorithm kernel

Grad

C++, Win32

readme

screenshot

zip

RCGA
Genetic Algorithm A-Life

RCGA.bas

Algorithm kernel

High
School

Visual Basic,
Win32

readme

screenshot

zip

Category

Project

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Year

Language, OS

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Parsers

DexCalc
Calculator
(shunting-yard)

DexCalc.cpp

Algorithm kernel

Grad

C++, Win32

readme

screenshot

zip

DexCC
Parser Generator in C++
(LALR)

ParserGen.cpp	Algorithm kernel (build states table)
ParserGen.cpp	Build configuration sets
ParserGen.cpp	Compress states table

Grad

C++, Win32

readme

screenshot

zip

myBNF
Parser Generator in
Visual Basic
(LALR)

Module4.bas	Algorithm kernel (build states table)
Module2.bas	Build configuration sets
Module4.bas	Compress states table

Grad

Visual Basic,
Win32

readme

screenshot

zip

Category

Project

Code Sample

Year

Language, OS

Readme

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Games

Lode Runner
Side-scroller game
(Lode Runner clone)

Module4.bas

Algorithm Kernel
(druid NPC AI)

High
School

Visual Basic,
Win32

readme

screenshot

zip

VBO
Boardgame
(Othello / Reversi)

Othello.bas

Algorithm Kernel
(minimax)

High
School

Visual Basic,
Win32

Untitled 3D Space Sim

n/a

High
School

Visual Basic,
Win32

n/a

screenshot1

screenshot2

screenshot3

n/a

VB Tron
(Tron clone)

n/a

High
School

Visual Basic,
Win32

n/a

Category

Project

Code Sample

Year

Language, OS

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University

DexKNN
Motion Planning -
Probabilistic roadmap
construction along the
Voronoi of known CFree
(master's thesis, unpublished)

n/a

Grad

Visual Basic,
Win32

readme

screenshot

zip

Robot Controller
for mobile robot
competition
(forward kinematics
puppeteering rig with
keyframe editor)

n/a

Grad

C++,
Win32

n/a

screenshot1

screenshot2

n/a

CUI
Game Programming
Course Final Project -
Driving Simulator
Team: CUI

n/a

Undergrad

C++, Win32

OCR
Artificial Intelligence
Course Final Project -
Optical Character Recgonition
Team: Unnamed

n/a

Undergrad

Visual Basic,
Win32

readme

n/a

zip

Category	Project	Code Sample	Year	Language, OS	Readme	Screenshot	Download
Patents	Chen, Jerry Jen-Chih and Li, Chia. 2011. Authentication of unknown parties in secure computer communications. U.S. Patent 7,949,771, filed September 5, 2007, and issued May 24, 2011. Source: USPTO database.	n/a	2007	Legalese	Authentication of an unknown party in a secure computer communication may be performed even without consulting a public whitelist of trusted parties. A digital certificate from an unknown party not authenticated by a trusted certificate authority may be locally processed to determine if the digital certificate is a trusted, non-trusted, or unknown digital certificate. For example, a model may be created by training a support vector machine to classify a digital certificate. The model may be provided to a computer involved in secure computer communication. The computer may receive an incoming digital certificate, extract fields from the incoming digital certificate, and take a hash of the extracted fields perform input data that may be employed by the model to determine if the incoming digital certificate is a trusted, non-trusted, or unknown digital certificate.	screenshot	n/a

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Category	Project	Code Sample	Year	Language, OS	Readme	Screenshot	Download
Networking	Web Spider for downloading entire websites	n/a	Undergrad	Visual Basic, Win32	n/a	screenshot	n/a
Networking	UDP Proxy for capturing and recording UDP packets	n/a	Undergrad	Visual Basic, Win32	n/a	screenshot	n/a