add An Implicit SPH Formulation for Incompressible Linearly Elastic Solids

it would be nice to add An Implicit SPH Formulation for Incompressible Linearly Elastic Solids based on the paper by

A. Peer, C. Gissler, S. Band, M. Teschner, "An Implicit SPH Formulation for Incompressible Linearly Elastic Solids," Computer Graphics Forum, DOI: 10.1111/cgf.13317, pp. 1-14, Dec. 2017. Presented at Eurographics 2018 in Delft, The Netherlands.

video demo youtube.com/watch

this would be a nice additional module for simulation.

agapi simon

thanks.