Eucalyptus

Strange, that never worked before when someone suggested it but it seems to have worked now. Thanks cyber!

Is this just something to always leave unchecked then, if you are using Bullet solver for terrain objects, or is it just recommended to use RBD solver for complex objects always?

I have a very basic grid, with a mountain SOP, that I have turned into a Terrain Object (following the SideFX Tutorial “Dynamics” in Learning Lesson 11).

I then create a sphere, turn it into an RBD Object, and transform it above the grid.

Without touching any other settings, I play the simulation as Ari Danesh does in the tutorial, and his sphere falls and goes into the contours of the mountain grid. However, mine does not. It stops at what the highest point of the grid would be, and rolls horizontally, as if it were an invisible box. This is all on the default bullet solver.

When I change to an RBD solver, it interacts properly.

Is this just something buggy with my Houdini install, or has the Bullet solver/default settings been changed since that tutorial?

Anyone know if there is a specific setting to change after I have fractured an RBD Object, to cause the pieces to interact with a Fluid Tank?

If I pull the fracture (and wind that I have animated to test something) out of the tree, the regular un-fractured object hits the water and floats just fine.

Note: the Density on my objects was lowered to 150, but still without fracturing they float fine, so this isn't the cause.