Simone Ciliani

What I found with stiff objects like rocks (stiff 1e+9), and having instability, is not matter what, raising like crazy the max subs will still make the sim crushing,
I found a better result decreasing the CFL which is indeed decreasing the maxSubstep used (I'm working with 100000)

• Didn't find any benefit working with the minsubstep...
  
• Didn't find any "release on pressure" adding global substed, where I was expecting to halve the error if the velocity/computation was clustered it out on different steps, but mpm is not quite working in that way
  
• MaterialCondition is changing to much the behaviour
  
• Particle collision with Velocity is more difficult to solve respect the moving particles option
  

What I'm playing with now, having different material is to have the most stiff objects with lower resolution/particle separation,

I found that a must when versioning,

Houdini doesn't like the dll, can't catch any error but it's not loading it,
I suppose visual studio 2019 is not matching with Houdini 18,
http://www.sidefx.com/docs/hdk/_h_d_k__intro__getting_started.html [www.sidefx.com]
this table is not really clear to me, I'm downloading visual 2017 and see if its gonna work