Mesh & Scene IO

Our Mesh and Scene IO is backed by VTK and assimp along with our own readers.

All geometry can read/write through MeshIO.

// Read ".vtk" file into tetMesh
auto tetMesh = MeshIO::read<TetrahedralMesh>("C:/ExampleLocation/exampleFile.vtk");
// Write out
MeshIO::write(tetMesh , "C:/MyLocationToWriteTo/exampleFileOut.vtk");

Here’s a full list of supported geometry file types

VisualObjectImporter

The VisualObjectImporter is for importing more complex objects in the scene that cannot be described by a single geometry. This may involve multiple separable meshes, materials, textures, etc. Or even hierarchically defined meshes with multiple parts (it will flatten). In the future, it may be used for full scenes. It supports reading 3ds, obj, fbx, and dae. It can be used as follows:

MeshIO

File Format	Extension	IO	Geometry
VTK	.vtk	read/write	HexahedralMesh, SurfaceMesh, TetrahedralMesh
VTU	.vtu	read/write	HexahedralMesh, TetrahedralMesh
VTP	.vtp	read/write	SurfaceMesh
Stereolithic	.stl	read/write	SurfaceMesh
Polygon	.ply	read/write	SurfaceMesh
Nearly Raw Raster Data	.nrrd	read/write	ImageData (Only uncompressed)
Nifti	.nii	read/write	ImageData
Dicom	.dcm	read	ImageData (Basic/limited support)
Meta Images	.mhd + .raw	read/write	ImageData (Compressed)
Wavefront	.obj	read	SurfaceMesh
Collada	.dae	read	SurfaceMesh
Filmbox	.fbx	read	SurfaceMesh (Basic/limited support)
Autodesk 3ds	.3ds	read	SurfaceMesh (Basic/limited support)
Vega	.veg	read/write	HexahedralMesh, TetrahedralMesh
GMSH	.msh	read	HexahedralMesh, TetrahedralMesh

std::shared_ptr<VisualObject> myObject = ObjectIO::importSceneObject("Object Name", "C:/ExamplePath/ExampleFile.dae", "C:/ExamplePath/");
// This can then be added to the scene
scene->addSceneObject(myObject);

Example of file with multiple parts and materials: