houdini-principal-curvature

A Houdini DSO that extracts the minimal and maximal principal curvature directions from geometry.

Installation

0. Clone the repository, including dependencies, e.g git clone --recursive https://github.com/mruegenberg/houdini-principal-curvature.git
1. Modify compile.sh or compile.bat (on Windows) to use your Houdini installation
2. Compile with the script
3. Move the resulting dll/dylib/so to your HOUDINI_DSO_PATH or add the path where it is located to it, e.g export HOUDINI_DSO_PATH="pwd/dso;&"

Notes

As of Houdini 17.5, hcustom requires csh to be available under Linux

Usage

The node takes just one input. It writes min_principalcurvature and max_principalcurvature point attributes.

The input mesh must be triangular (e.g using the Divide or Remesh SOPs).

Dependencies

• libigl performs the actual principal curvature direction determination

• Eigen is used heavily by libigl

License

The code itself is under the MIT and MPL2 licenses. Eigen and libigl (the dependencies) are under the MPL2 license.

In short, this means that commercial use within your company is no problem at all.

If you want to redistribute this, you have to provide some notice on where to find the original source code.