[2605.26182] BrickAnything: Geometry-Conditioned Buildable Brick Generation with Structure-Aware Tokenization
2 min read
| Aspect | Existing Approaches | BrickAnything (This Work) |
|---|---|---|
| Geometry Representation | Heuristic optimization on predefined shapes; sequence models without explicit 3D geometry modeling | Unified point-cloud interface conditioning — works across diverse 3D representations |
| Tokenization Strategy | Conventional linear ordering of bricks; no structural dependency modeling | Structure-aware tree tokenization encoding local attachment relations, mirroring physical construction |
| Buildability Guarantees | Heuristics break down on infeasible shapes; sequence models produce invalid intermediate states | Validity-constrained decoding & adaptive rollback enforce assembly constraints at every step |
| Structural Stability | Not explicitly optimized; physical realizability often unaddressed | Preference-based alignment post-training directly optimizes for stability & geometric fidelity |
| Key Limitation / Advantage | High rollback/regeneration rates; fragile when target geometry is complex or unconventional | Significantly reduced rollback & regeneration; produces geometrically faithful, physically realizable structures |
Buildable Brick Generation
Consequently, creating buildable bricks from 3D shapes needs both precise geometry and stable assembly rules. Moreover, BrickAnything is a new framework that uses point clouds as a common input. Furthermore, their structure-aware tree tokenization models how bricks connect. Additionally, this helps everyone generate valid, physical brick models more simply and reliably.
Enabling Automated Physical Construction
This indicates BrickAnything uses point clouds as a unified geometric input for brick structure generation. Therefore, it can handle diverse 3D models, making the tool accessible to many users. Similarly, the new structure-aware tokenization models brick attachment relations like physical building. Moreover, this method significantly reduces construction errors compared to older approaches. Consequently, it produces stable, faithful structures from any 3D shape.
“To model structural dependencies among bricks, we introduce a structure-aware tree tokenization, which represents brick structures through local attachment relations. This formulation makes sequence generation more consistent with the physical construction process, and reduces invalid intermediate states.”
In summary, BrickAnything brings a fresh, inclusive approach to buildable brick generation from 3D shapes. Ultimately, its structure-aware tokenization respects real construction rules. Therefore, the model produces more stable and faithful designs. As a result, it outperforms older heuristic methods. Looking ahead, this work opens doors for everyone to build creative, physical structures easily.
In summary, BrickAnything offers a new way to generate buildable brick models from 3D shapes. Therefore, it uses structure-aware tokenization to improve physical stability during creation. Consequently, this method reduces errors and enhances efficiency in the generation process.
Ultimately, this innovation could change how we design and assemble bricks in various fields. As a result, it supports more accessible and reliable building of complex structures. In conclusion, the framework lays groundwork for future progress in automated construction.
