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arXiv · 2602.21341

Scaling View Synthesis Transformers

Evan Kim·Hyunwoo Ryu·Thomas W. Mitchel·Vincent Sitzmann
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Abstract

Geometry-free view synthesis transformers have recently achieved state-of-the-art performance in Novel View Synthesis (NVS), outperforming traditional approaches that rely on explicit geometry modeling. Yet the factors governing their scaling with compute remain unclear. We present a systematic study of scaling laws for view synthesis transformers and derive design principles for training compute-optimal NVS models. Contrary to prior findings, we show that encoder-decoder architectures can be compute-optimal; we trace earlier negative results to suboptimal architectural choices and comparisons across unequal training compute budgets. Across several compute levels, we demonstrate that our encoder-decoder architecture, which we call the Scalable View Synthesis Model (SVSM), scales as effectively as decoder-only models, achieves a superior performance-compute Pareto frontier, and surpasses the previous state-of-the-art on real-world NVS benchmarks with substantially reduced training compute.

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Evan Kim, Hyunwoo Ryu, Thomas W. Mitchel, Vincent Sitzmann. 2026-02-24. Scaling View Synthesis Transformers. https://arxiv.org/abs/2602.21341

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