Addressing very near-field reflections in single-object scenarios

Investigate and resolve the limitation of the HybridSplat reflection-baked Gaussian tracing in accurately handling very near-field specular reflections for single-object scenarios, so that reflective appearance can be reconstructed without the current degradation observed in such settings.

Background

HybridSplat introduces reflection-baked Gaussian tracing to accelerate reflection rendering by baking view-dependent reflections into reflective Gaussian primitives and rendering via tile-based splatting. While this approach achieves significant speed and memory benefits across complex reflective scenes, the authors explicitly note a drawback when reflections are very near-field around single objects, indicating a gap in the current method’s effectiveness for these challenging cases.

This limitation is emphasized in the conclusion as an item left for future work, distinguishing it from general aspirations and marking it as an explicitly unresolved issue in the paper.