ZBrushCentral

Gravity tipping test possible?

Hello,

for toy industry, there is a requirement that a toy figure must not tip over on a 10° inclined plane.
Is there a way to test this in zBrush.
Since there is the Gravity function, I think it should not be a problem.

Thanks a lot

kreisi

Hello @kreisi

This would require advanced physics simulation. The “Gravity” feature in ZBrush typically just sets a direction based on the screen plane that brush or dynamics effects express themselves in. The Dynamics simulation in ZBrush does not support the type of hard body physics simulation that would be needed for this.

:slight_smile:

Would be nice to have a Center of Gravity display dependent on model orientation relative to the floor. At least that would give a quick initial assessment of balance for a standing toy or hang for a pendant.

@kreisi

Orient the model as required, export as OBJ and import into MeshLab (OpenSource Mesh tools). Then run Filters > Quality Measure and Computations > Compute Geometric Measures. Returns coordinates of the Center of Mass amongst other useful data. Gravity pulls perpendicular to the floor through the Center of Mass so you could check this against the coordinates of the floor contact location for an idea of whether the model will tip or not. I used it to assess whether a pendant I had sculpted would hang vertically.

Cheers.