Continuing on with the next phase of our Great Mouse Launch tutorial, it’s important to understand how mass is going to affect the simulation. In the real world, when something gets bigger it will probably end up weighing more. Except me. I weigh the same, no matter how big my tummy gets. That’s my story, and I’m sticking to it.
And yes, these pants fit fine, thanks for asking.
Anyway, in order to set up this relationship where the scale of our object will affect the mass, we need to use Blender’s Driver system. Drivers are like Maya’s expressions + set driven keys. But… a bit more confusing. And powerful. And confusing.
So in this tutorial, I introduce the concept of drivers and show how to use scale to drive the mass of a rigid body object. And remember to go to Preferences and enable ‘Auto run Python Scripts’ to get the drivers to work since it is disabled by default. Enjoy!