MGPBD replaces XPBD's local iterative solve with an unsmoothed-aggregation algebraic multigrid preconditioned conjugate gradient solve, plus a lazy setup that reuses prolongators, making high-stiffness, high-resolution deformable simulations converge far faster and more stably.
International Conference on Learning Representations (ICLR) (2021)
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MGPBD: A Multigrid Accelerated Global XPBD Solver
MGPBD replaces XPBD's local iterative solve with an unsmoothed-aggregation algebraic multigrid preconditioned conjugate gradient solve, plus a lazy setup that reuses prolongators, making high-stiffness, high-resolution deformable simulations converge far faster and more stably.