Rigid body dynamic (RBD) precision and subframe sampling


About precision and subframe sampling for rigid body dynamics…here’s my understanding of how these two are related. Note that nobody confirmed this when I asked around, but then again nobody gainsaid it either šŸ˜‰

The precision determines how frequently the simulation is calculated. For example, if Precision=120, then there is at most 1/120 of a second between calculations.

The subframe sampling determines the number of samples per frame.

So, if you are have this:

  • 30 fps
  • Precision = 120 per second
  • Subframe sampling =2 per frame

Then the RBD simulation is updated/calculated 4 times per frame (120/30), and ICE takes 2 samples of those calculated values per frame.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s