Fire & Smoke Generator 1.0
user's manual
Collision settings

Fire&Smoke Collision Interface You can attach this plugin to any object created with triangles and quads (or nurbs patches). Particles from all emitters will not pass through this geometry. The collision object may be animated in any way you like (bones, displacement, plugins, whatever). Try to create collision object as simple as possible to speed up the simulation. Try to break apart collision object to pieces with smallest bounding box. too big bounding box optimized bounding box too big bounding box optimized bounding box Of course you can use not optimized collisions objects but it slows down computing time. All particles inside bounding box are checked for collisions. Enable Collisions - enable collision computation for selected object. When disabled object will be ignored. Static Object - check this when your collision object is not animated (wall, ground etc) it speeds up simulation time. Kill Particles - when checked particles are removed after collision. Draw Geometry in Viewports - this option affects only viewports and has no influence on simulation.