4DSynth: Controllable Procedural World Synthesis for Dynamic Embodied Simulation
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TL;DR - 4DSynth generates editable, physics-ready 4D simulation environments from text, blueprint masks, or single images. It also enables reproducible, tunable benchmarks for developing and evaluating embodied agents.
- Produces explicit geometry, animated actors, collision-free trajectories, and simulation-ready physical state.
- Uses a shared geometry-grounded representation for animation, camera planning, rendering, and task generation.
- Introduces 4DSynth-Nav, an interactive navigation benchmark generated entirely from procedural scenes.
- Two vision-language models failed most navigation tasks across three difficulty tiers, often stalling after early subtasks.
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4DSynth: Controllable Procedural World Synthesis for Dynamic Embodied Simulation
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TL;DR - 4DSynth generates editable, physics-ready 4D simulation environments from text, blueprint masks, or single images. It also enables reproducible, tunable benchmarks for developing and evaluating embodied agents.
- Produces explicit geometry, animated actors, collision-free trajectories, and simulation-ready physical state.
- Uses a shared geometry-grounded representation for animation, camera planning, rendering, and task generation.
- Introduces 4DSynth-Nav, an interactive navigation benchmark generated entirely from procedural scenes.
- Two vision-language models failed most navigation tasks across three difficulty tiers, often stalling after early subtasks.