A signed distance field embedding of the well-known dragon 3D model, courtesy of Stanford University Computer Graphics Laboratory
The original model contains some small holes. To create a manifold (water-tight) mesh, a Poisson reconstruction was first performed, using Meshlab, with a depth of 10.
The final signed distance field embedding was computed using SDFGen, with the following parameters (0.001 units per voxel and 16 voxels of padding around the model bounds):
./SDFGen dragon.obj 0.001 16
The resulting SDF available through this repository, as a VTI file (visualization toolkit image). It can be opened using ParaView.