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Dual Contouring Implementation in C++

Author: Tao Ju (with QEF code written by Scott Schaefer) Updated: February 2011

I. What's included

/code Source code and Microsoft Visualt Studio 6.0 project/workspace files /data A test file (mechanical part), in both .dcf and .ply formats

II. How to run

The dc.exe in the /code/release can be run by calling:

dc.exe mechanic.dcf out.ply

where out.ply stores the polygonal output.

III. File formats

The code can take in two kinds of input: .dcf (Dual Contouring Format) and .sog (Signed Octree with Geometry). Both formats store an octree grid with inside/outside signs. DCF contains intersection points and normals on grid edges, whereas SOG contains a single point location within each non-empty grid cell. Both formats can be produced from a polygonal model, via scan-conversion, using the Polymender software on my website:

http://www1.cse.wustl.edu/~taoju/code/polymender.htm

The detail formats are documented in the readme file of Polymender.

IV. Other notes.

Two algorithms are implemented in this code: the original dual contouring algorithm [Ju et al., Siggraph 2002] and the intersection-free extension [Ju et al., Pacific Graphics 2006]. You can switch between them in the main() function in dc.cpp. In addition, octree simplification (guided by QEF errors) is also implemented, and can be turned on in the main() function.

The use of all code is limited to non-profit research purposes only.

CHANGES (by Julian Bayardo julian@bayardo.info):

  • Support CMake
  • Remove all errors in source code found, without any meaningful changes

If you are running under Linux x64, you will need sudo apt-get install gcc-multilib g++-multilib

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Tao Ju's original C++ implementation, with CMake (compiles on Linux)

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