Tobias Alexander Franke

A Spatio-Temporal Acceleration Framework for Order-Independent Transparency

Grigoris Tsopouridis, Christos Georgiou-Mousses, Aris Panagiotidis, Andreas A. Vasilakis, Tobias Alexander Franke, Aleksei Gorbonosov, Andrei Astapov, and Ioannis Fudos Proceedings of Pacific Graphics 2026

FLIP perceptual error comparison across ODT, WBOIT, and DFAOIT pipelines using VRS and Stencil acceleration, measured against non-accelerated references. All errors remain below 0.02, with VRS consistently achieving lower error. Stencil shows higher error due to its simple bi-linear interpolation.
FLIP perceptual error comparison across ODT, WBOIT, and DFAOIT pipelines using VRS and Stencil acceleration, measured against non-accelerated references. All errors remain below 0.02, with VRS consistently achieving lower error. Stencil shows higher error due to its simple bi-linear interpolation.

Abstract

Order-independent transparency (OIT) remains costly, particularly on mobile and legacy hardware. We present a spatio-temporal acceleration suite that exploits spatial and temporal coherence to reduce rendering cost while preserving visual quality. Our method combines adaptive tiled screen-space sampling or hardware-accelerated variable rate shading (VRS) where available, and modular temporal reprojection. Designed as a plug-in acceleration layer, it can be integrated with existing OIT techniques to significantly improve real-time performance with minimal integration overhead.

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 2026-10-06
 Conference Publication Order Independent Transparency
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