Fast Paint Texture Research Project

Final research project for COMP4610 Computer Graphics at the ANU.

Overview

Reimplemented Aaron Hertzmann's Fast Paint Texture algorithm presented in Fast Paint Texture algorithm in C++. The Fast Paint Texture algorithm extends Aaron Hertzmann's previous painting algorithm presented in Painterly Rendering with Curved Brush Strokes of Multiple Sizes. Our project structure is based on Aaron Hertzmann's Java implementation of Painterly Rendering with Curved Brush Strokes of Multiple Sizes.

Our primary contribution is applying different lighting shaders and brush stroke textures to the Fast Paint Texture algorithm.

Example

Fast paint texture pipeline showing the soruce, painted and final textured image respectively.

Usage

The program has the following usage

./fast-paint-texture (input-image) (shader)

Where

• input-image is the file name of the input image
• shader is the lighting shader to be used for rendering. shader can have the following values: blinn-phong, lambertian, oren-nayar, toon, and normal.

Dependencies

The program has the following dependencies:

• CMake
• OpenCV
• Eigen3

Scripts

We provide .sh scripts for simple usage of the program. Before trying to run any of the scripts, create the build directory in the project root. The expected project hierarchy is shown below.

├── build
├── CMakeLists.txt
├── include
│   ├── image.hpp
│   ├── kernel.hpp
│   ├── light.hpp
│   ├── paint.hpp
│   ├── parameters.hpp
│   ├── shader.hpp
│   ├── stroke.hpp
│   └── texture.hpp
├── README.md
├── scripts
│   ├── clean.sh
│   ├── make-run.sh
│   ├── make.sh
│   └── run.sh
├── src
│   ├── image.cpp
│   ├── kernel.cpp
│   ├── main.cpp
│   ├── paint.cpp
│   ├── shader.cpp
│   ├── stroke.cpp
│   └── texture.cpp
├── stroke-textures
│   └── Brush stroke texture images
├── imgs
│   └── Input images
├── paint
│   └── Output painted images
├── height
│   └── Output painted height maps
└── texture
    └── Output textured painted images

Use the following scripts in the root directory for simple usage.

• scripts/make.sh: Builds the project
• scripts/make.sh -ANIMATE: Builds the project in animation mode. This will show how the canvas is painted.
• scripts/run.sh image.png shader: Runs the program on imgs/image.png using the shader lighting shader and saves the output as texture/shader-image.png, paint/paint-image.png and height/height-image.png
• scripts/make-run.sh image.png: Builds and runs the program on imgs/image.png using the shader lighting shader and saves the output as texture/shader-image.png, paint/paint-image.png and height/height-image.png
• scripts/clean.sh: Deletes the current build files

NOTE: After building the project in animation mode, you must clean the project before it can be built in normal mode again.