Less can be more: A footprint-driven heuristic to skip wasted connections and merges in bidirectional rendering
Ömercan Yazici
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Pascal Grittmann
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Philipp Slusallek
Published in
EGSR
2025
10.2312/sr.20251180
Posted on 25 June 2025
Bidirectional rendering algorithms can robustly render a wide range of scenes and light transport effects. Their robustness stems from the fact that they combine a huge number of sampling techniques: Paths traced from the camera are combined with paths traced from the lights by connecting or merging their vertices in...
No More Shading Languages: Compiling C++ to Vulkan SPIR-V
Hugo Devillers
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Matthias Kurtenacker
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Richard Membarth
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Stefan Lemme
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Michael Kenzel
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Ömercan Yazici
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Philipp Slusallek
Published in
HPG
2025
10.2312/hpg.20251167
Posted on 23 June 2025
Graphics APIs have traditionally relied on shading languages, however, these languages have a number of fundamental defects and limitations. By contrast, GPU compute platforms offer powerful, feature-rich languages suitable for heterogeneous compute. We propose reframing shading languages as embedded domain-specific languages, layered on top of a more general language like...
MARS: Multi-sample Allocation through Russian roulette and Splitting
Joshua Meyer
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Alexander Rath
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Ömercan Yazici
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Philipp Slusallek
Published in
SIGGRAPH Asia
2024
10.1145/3680528.3687636
Posted on 8 December 2024
Multiple importance sampling (MIS) is an indispensable tool in rendering that constructs robust sampling strategies by combining the respective strengths of individual distributions. Its efficiency can be greatly improved by carefully selecting the number of samples drawn from each distribution, but automating this process remains a challenging problem. Existing works...
Focal Path Guiding for Light Transport Simulation
Alexander Rath
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Ömercan Yazici
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Philipp Slusallek
Published in
SIGGRAPH
2023
10.1145/3680528.3687636
Posted on 2 August 2023
Focal points are fascinating effects that emerge from various constellations, for example when light passes through narrow gaps or when objects are seen through lenses or mirrors. These effects can be challenging to render, as paths need to pass through small regions that are not always known beforehand and can...
Efficiency-aware multiple importance sampling for bidirectional rendering algorithms
Pascal Grittmann
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Ömercan Yazici
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Iliyan Georgiev
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Philipp Slusallek
Published in
SIGGRAPH
2022
10.1145/3528223.3530126
Posted on 22 July 2022
Multiple importance sampling (MIS) is an indispensable tool in light-transport simulation. It enables robust Monte Carlo integration by combining samples from several techniques. However, it is well understood that such a combination is not always more efficient than using a single sampling technique. Thus a major criticism of complex combined...
