Awesome
unity-voxelizer
Utility library to voxelize meshes in Unity.
Usage
//Create a new instance
var vxl = new Voxeliser(bounds, xGridDimensions, yGridDimensions, zGridDimensions);
//Pass in a transform with mesh renderers under it
vxl.Voxelize(rootTransform);
//This will return a 3D bool array that contains the voxel data. solid == true empty == false
var data = vxl.VoxelMap;