Layered Weighted Blended Order-Independent Transparency

Our approach improves the accuracy of weighted blended order-independent transparency, while remaining efficient and easy to implement. We extend the original algorithm to a layer-based approach, where the content of each layer is blended independently before compositing them globally. Hereby, we achieve a partial ordering but avoid explicit sorting of all elements. To ensure smooth transitions across layers, we introduce a new weighting function. Additionally, we propose several optimizations and demonstrate the method’s effectiveness on various challenging scenes in terms of geometric- and depth complexity. We achieve an error reduction more than an order of magnitude on average compared to weighted blended order-independent transparency for our test scenes.

@InProceedings { FEE21,
  author       = "Friederichs, Fabian and Eisemann, Elmar and Eisemann, Martin",
  title        = "Layered Weighted Blended Order-Independent Transparency",
  booktitle    = "Proc. Graphics Interface ({GI})",
  pages        = "1 -- 6",
  year         = "2021",
  url          = "http://graphics.tudelft.nl/Publications-new/2021/FEE21"
}