Add implementation of solid voxelization

[conceptclear]

Hi, I have added some functions to achieve solid voxelization according to the paper "Fast Parallel Surface and Solid Voxelization on GPU's". I hope you can merge it if there is a need.

Thanks

[Forceflow]

Hey @conceptclear, this looks interesting. Some questions before I merge:

• Right now this replaces the non-solid voxelization path - I can convert this into an "optional" path, or you can change your PR - whatever fits your schedule. I think I would prefer splitting this off into a voxelize_solid.cu file, so I can keep both implementations cleanly seperated.
• Does this work with non-watertight models?

So, the way forward for me:

1. Move all required code to voxelize_solid.cu
2. Make sure it has one entry point to call void voxelize_solid(const voxinfo& v, float* triangle_data, unsigned int* vtable, bool morton)
3. Ready for merge :)

Are you okay in doing this?

[conceptclear]

Hi, @Forceflow of course, you can do this. This method is not available for non-watertight models which would cause redundancy or loss of voxels.

[Forceflow]

This also needs to be made against the dev branch. I could do it for you, but then you'd lose bragging rights :)

[conceptclear]

Haha, I'll separate the re-push this code later today Thanks for your advising