StackGen3D: Stable 3D Block Stack Generation from Multiview Silhouettes
Given silhouettes from several views and an inventory of blocks, StackGen3D generates 3D block stacks that stand on their own. Block poses come from conditional flow matching; training data is curated with a physics-informed GNN and verified in MuJoCo. A simulator-free, AABB-based inference step raises stability from 45.3% to 72.4%.
