Matt Ebb has kindly reviewed the MLS patch, so it should make its way soon to the sim_physics branch.
As another example of the usefulness of MLS, here is a full volumetric ice test with MLS: hope you like it 🙂
Fig. 1 – Basic material (no volumetric)
Fig. 2 – volumetric with single light scattering): the volumetric lightning is localized
Fig. 3 – volumetric with multiple light scattering (come soon..). See how the light diffuses up to the ice edges.
Fig. 4 – Surface (Fig. 1) and volume lightning (Fig. 3) combined through basic node set-up
Fig. 5 – result
Fig. 6 – result with compositing tweakings