VTK in Unity via ActiViz

Brings scientific visualization into the Unity game engine. Goal of this project is to interactively control visualization parameters in a VR environment (powered by MiddleVR).

Prerequisites

• Unity 4.6.x
• Windows only
• Install ActiViz 5.8 x32
• Add the ActiViz Installation Dir/bin to the PATH environment variable

Usage

All C#-Dlls (Kitware.*) from ActiViz' bin-folder have to be in a Plugins-folder in Unity. Have a look at the example scene. For more infos regarding VTK in C# check out the examples.

Run as a player

• In Player Settings set API Compatibility Level to .NET 2.0
• Either all Dlls are in the same directory as the player exe or simply have ActiViz installed and its bin-dir appended to the PATH

Features

You can build arbitrary VTK filter pipelines but at the end the VtkToUnity-class accepts a vtkAlgorithmOutput with vtkPolyData. It then runs a vtkTriangleFilter on it. Points and Lines are rendered via Vectrosity which is not included. All primitves (points, lines, triangles) can be colored by a solid color, a point data scalar (1d) field or by a cell data scalar (1d) field. Some lookup table presets can be used.

General ActiViz tips

• When instantiating a VTK class use its New()-method instead of C#s new
• C#s automatic garbage collection should work as expected. Calling Dispose() on VTK objects should not be necessary.
• Vtk data files should be placed in Assets/StreamingAssets so that they get included into the standalone build (the Resources-folder does not work because it is used only for Unity-known file formats)