voxen

Voxel engine based on octal trees and adaptive octal trees.

Key features:

• Implements Raw voxel model - analogy to surface representation.
• Implements Octal tree.
• Implements Adaptive octal tree (optimal coding inovation).
• Implements basic raycasting for Raw voxel models and Octal trees (including dynamic lighting).
• Includes testapp for basic model loading and viewing, lighting settings available as well.
• Includes voxconv (conversion_tool dir) which allows to conversion between implemented formats. Support for image sets and Ken Silverman .vxl format loading is also supported.
• Includes basics tests.
• Includes prebuilt docs in html and latex format.

Build

Prerequisities:

• libsdl1.2-dev
• libsdl-image1.2-dev
• gcc, make
• unix system (Windows port not completed yet)
• 32-bit system (not all features implemented well for AMD64 yet)

Build:

  make
  cd conversion_tool && make && cd ..

There are several other make targets:

• make clang - build with clang instead of gcc.
• make fastgcc - build with lto options with gcc and native flags.
• make fastclang - build with optimized options of clang and native flags are set.
• make debug.
• make sse.

Running

• testapp - ./testapp/testapp
• voxconv - ./conversion_tool/voxconv (help is printed)
• library binaries are placed in voxen/bin/ after successful build.

Where to find models

• Extract a .RFF file from Blood game (.KVX files contains voxel models), use tool (http://advsys.net/ken/kbarf.zip).
• Get CT or NMR scan as image sequence.
• Draw custom models and export via Goxel (https://github.com/guillaumechereau/goxel).
• Download models in .vxl format (Voxlap, Voxelstein) and use voxconv (http://voxelstein3d.sourceforge.net/).