tagosaku Posted March 17, 2018 Share Posted March 17, 2018 hi, I try to make snow effect with grain solver, started from wet sand shell, wetness=1, and changed clump stiffness to 100. After tweaking around parameters, I got 3 main problems. 1 – how to add friction to static object? I set friction 10, bounce 0 , but particle is still sliding a lot. 2 – When dynamic object collide grain particle, it pushes away too much, but should not influence to surrounding particles. I think constrain pushes away in order to keep space between particles. 3 – particle motion is kind of springy or bouncy. Snow should damp velocity immediately. I guess I need to figure out how to control compression or density of particles by grain's internal constraint?! If anyone knows solutions, it would be great, thanks! grainSnow_v01.hip Quote Link to comment Share on other sites More sharing options...
3dome Posted March 17, 2018 Share Posted March 17, 2018 well you actually do have to play around with the scale kinetic/static thresh values grainSnow_v02.hip 1 Quote Link to comment Share on other sites More sharing options...
tagosaku Posted March 17, 2018 Author Share Posted March 17, 2018 Yeah, I already tweaked a static threshold and scale kinetic. These parameters reduce particle's expansion and push-away. However, it causes more #3's problem, springy and rebounce motion. #2 and #3 problems conflict each other to fix the both. Quote Link to comment Share on other sites More sharing options...
trunksdavid Posted September 15, 2018 Share Posted September 15, 2018 I've tried a lot to tackle this and eventually had to manually give bounce to the grains. I'm not sure if the grain particles accept bounce. Maybe a solution or new feature can be expected in the future. I'm also new to this. If someone can give a solution, Please do. Quote Link to comment Share on other sites More sharing options...
trunksdavid Posted September 15, 2018 Share Posted September 15, 2018 2 minutes ago, trunksdavid said: I've tried a lot to tackle this and eventually had to manually give bounce to the grains. I'm not sure if the grain particles accept bounce. Maybe a solution or new feature can be expected in the future. I'm also new to this. If someone can give a solution, Please do. Quote Link to comment Share on other sites More sharing options...
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