You've been logged out of GDC Vault since the maximum users allowed for this account has been reached. To access Members Only content on GDC Vault, please log out of GDC Vault from the computer which last accessed this account.

Click here to find out about GDC Vault Membership options for more users.

close

Session Name:

Math In Game Development Summit: Improving an Iterative Physics Solver Using a Direct Method

Overview:

As the content on Roblox is user generated, the physics engine is required to handle much more variety of interactions than other engines. Roblox doesn't have the luxury of using standard methods of fixing physics engine failures by tweaking the simulated models, their masses, inertias, removing over-constraints or using gameplay tricks to hide the issues. The requirement is stability at all costs. This session will describe how to use a direct matrix solver based on LDL matrix decomposition in tandem with a PGS solver (a.k.a. Sequential Impulse solver) to improve the stability of degenerate systems of constraints and rigid bodies.

Did you know free users get access to 30% of content from the last 2 years?


Get your team full access to the most up to date GDC content

  • GDC 2020
  • Maciej Mizerski
  • Roblox
  • free content
  • Math In Game Development Summit
  • Game Career / Education