High-Performance Graphics 2019 - Short Papers

Permanent URI for this collection

https://diglib.eg.org/handle/10.2312/2632797
High-Performance Graphics 2019 - Short Papers
Strasbourg | July 8–10, 2019
(Full papers are published in CGF, see HPG2019 - CGF 38-8)
Table of Contents
Ray Tracing: Hardware and Performance
Mach-RT: A Many Chip Architecture for Ray Tracing
[full paper Image] [meta data Image]
Elena Vasiou, Konstantin Shkurko, Erik Brunvand, and Cem Yuksel
RTX Beyond Ray Tracing: Exploring the Use of Hardware Ray Tracing Cores for Tet-Mesh Point Location
[full paper Image] [meta data Image]
Ingo Wald, Will Usher, Nathan Morrical, Laura Lediaev, and Valerio Pascucci
Wide BVH Traversal with a Short Stack
[full paper Image] [meta data Image]
Karthik Vaidyanathan, Sven Woop, and Carsten Benthin
Doing More With Each Ray
Dynamic Many-Light Sampling for Real-Time Ray Tracing
[full paper Image] [meta data Image]
Pierre Moreau, Matt Pharr, and Petrik Clarberg
Stochastic Lightcuts
[full paper Image] [meta data Image]
Cem Yuksel
Temporally Dense Ray Tracing
[full paper Image] [meta data Image]
Pontus Andersson, Jim Nilsson, Marco Salvi, Josef Spjut, and Tomas Akenine-Möller
Rasterization Techniques and Ray-Tracing Applications
Patch Textures: Hardware Implementation of Mesh Colors
[full paper Image] [meta data Image]
Ian Mallett, Larry Seiler, and Cem Yuksel
A Practical and Efficient Approach for Correct Z-Pass Stencil Shadow Volumes
[full paper Image] [meta data Image]
Baran Usta, Leonardo Scandolo, Markus Billeter, Ricardo Marroquim, and Elmar Eisemann
Real-Time Ray Tracing on Head-Mounted-Displays for Advanced Visualization of Sheet Metal Stamping Defects
[full paper Image] [meta data Image]
Andreas Dietrich, Jan Wurster, Eric Kam, and Thomas Gierlinger

BibTeX (High-Performance Graphics 2019 - Short Papers)
@inproceedings{
10.2312:hpg.20191188,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
Mach-RT: A Many Chip Architecture for Ray Tracing}},

author = {
Vasiou, Elena
 and 
Shkurko, Konstantin
 and 
Brunvand, Erik
 and 
Yuksel, Cem
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191188}

}
@inproceedings{
10.2312:hpg.20191189,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
RTX Beyond Ray Tracing: Exploring the Use of Hardware Ray Tracing Cores for Tet-Mesh Point Location}},

author = {
Wald, Ingo
 and 
Usher, Will
 and 
Morrical, Nathan
 and 
Lediaev, Laura
 and 
Pascucci, Valerio
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191189}

}
@inproceedings{
10.2312:hpg.20191190,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
Wide BVH Traversal with a Short Stack}},

author = {
Vaidyanathan, Karthik
 and 
Woop, Sven
 and 
Benthin, Carsten
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191190}

}
@inproceedings{
10.2312:hpg.20191191,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
Dynamic Many-Light Sampling for Real-Time Ray Tracing}},

author = {
Moreau, Pierre
 and 
Pharr, Matt
 and 
Clarberg, Petrik
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191191}

}
@inproceedings{
10.2312:hpg.20191192,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
Stochastic Lightcuts}},

author = {
Yuksel, Cem
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191192}

}
@inproceedings{
10.2312:hpg.20191193,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
Temporally Dense Ray Tracing}},

author = {
Andersson, Pontus
 and 
Nilsson, Jim
 and 
Salvi, Marco
 and 
Spjut, Josef
 and 
Akenine-Möller, Tomas
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191193}

}
@inproceedings{
10.2312:hpg.20191194,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
Patch Textures: Hardware Implementation of Mesh Colors}},

author = {
Mallett, Ian
 and 
Seiler, Larry
 and 
Yuksel, Cem
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191194}

}
@inproceedings{
10.2312:hpg.20191196,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
Real-Time Ray Tracing on Head-Mounted-Displays for Advanced Visualization of Sheet Metal Stamping Defects}},

author = {
Dietrich, Andreas
 and 
Wurster, Jan
 and 
Kam, Eric
 and 
Gierlinger, Thomas
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191196}

}
@inproceedings{
10.2312:hpg.20191195,

booktitle = {
High-Performance Graphics - Short Papers},

editor = {
Steinberger, Markus and Foley, Tim
},
title = {{
A Practical and Efficient Approach for Correct Z-Pass Stencil Shadow Volumes}},

author = {
Usta, Baran
 and 
Scandolo, Leonardo
 and 
Billeter, Markus
 and 
Marroquim, Ricardo
 and 
Eisemann, Elmar
},
year = {
2019},

publisher = {
The Eurographics Association},


ISSN = {2079-8687},
ISBN = {978-3-03868-092-5},

DOI = {
10.2312/hpg.20191195}

}

Browse

Recent Submissions

Now showing 1 - 10 of 10
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    High-Performance Graphics 2019 – Short Papers: Frontmatter
    (Eurographics Association, 2019) Steinberger, Markus; Foley, Tim; Steinberger, Markus and Foley, Tim
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    Mach-RT: A Many Chip Architecture for Ray Tracing
    (The Eurographics Association, 2019) Vasiou, Elena; Shkurko, Konstantin; Brunvand, Erik; Yuksel, Cem; Steinberger, Markus and Foley, Tim
    We propose an unconventional solution to high-performance ray tracing that combines a ray ordering scheme that minimizes access to the scene data with a large on-chip buffer acting as near-compute storage that is spread over multiple chips. We demonstrate the effectiveness of our approach by introducing Mach-RT (Many chip - Ray Tracing), a new hardware architecture for accelerating ray tracing. Extending the concept of dual streaming, we optimize the main memory accesses to a level that allows the same memory system to service multiple processor chips at the same time. While a multiple chip solution might seem to imply increased energy consumption as well, because of the reduced memory traffic we are able to demonstrate, performance increases while maintaining reasonable energy usage compared to academic and commercial architectures.
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    RTX Beyond Ray Tracing: Exploring the Use of Hardware Ray Tracing Cores for Tet-Mesh Point Location
    (The Eurographics Association, 2019) Wald, Ingo; Usher, Will; Morrical, Nathan; Lediaev, Laura; Pascucci, Valerio; Steinberger, Markus and Foley, Tim
    We explore a first proof-of-concept example of creatively using the Turing generation's hardware ray tracing cores to solve a problem other than classical ray tracing, specifically, point location in unstructured tetrahedral meshes. Starting with a CUDA reference method, we describe and evaluate three different approaches to reformulate this problem in a manner that allows it to be mapped to these new hardware units. Each variant replaces the simpler problem of point queries with the more complex one of ray queries; however, thanks to hardware acceleration, these approaches are actually faster than the reference method.
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    Wide BVH Traversal with a Short Stack
    (The Eurographics Association, 2019) Vaidyanathan, Karthik; Woop, Sven; Benthin, Carsten; Steinberger, Markus and Foley, Tim
    Compressed wide bounding volume hierarchies can significantly improve the performance of incoherent ray traversal, through a smaller working set of inner nodes and therefore a higher cache hit rate. While inner nodes in the hierarchy can be compressed, the size of the working set for a full traversal stack remains a significant overhead. In this paper we introduce an algorithm for wide bounding volume hierarchy (BVH) traversal that uses a short stack of just a few entries. This stack can be fully stored in scarce on-chip memory, which is especially important for GPUs and dedicated ray tracing hardware implementations. Our approach in particular generalizes the restart trail algorithm for binary BVHs to BVHs of arbitrary widths. Applying our algorithm to wide BVHs, we demonstrate that the number of traversal steps with just five stack entries is close to that of a full traversal stack. We also propose an extension to efficiently cull leaf nodes when a closer intersection has been found, which reduces ray primitive intersections by up to 14%.
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    Dynamic Many-Light Sampling for Real-Time Ray Tracing
    (The Eurographics Association, 2019) Moreau, Pierre; Pharr, Matt; Clarberg, Petrik; Steinberger, Markus and Foley, Tim
    Monte Carlo ray tracing offers the capability of rendering scenes with large numbers of area light sources-lights can be sampled stochastically and shadowing can be accounted for by tracing rays, rather than using shadow maps or other rasterizationbased techniques that do not scale to many lights or work well with area lights. Current GPUs only afford the capability of tracing a few rays per pixel at real-time frame rates, making it necessary to focus sampling on important light sources. While state-of-the-art algorithms for offline rendering build hierarchical data structures over the light sources that enable sampling them according to their importance, they lack efficient support for dynamic scenes. We present a new algorithm for maintaining hierarchical light sampling data structures targeting real-time rendering. Our approach is based on a two-level BVH hierarchy that reduces the cost of partial hierarchy updates. Performance is further improved by updating lower-level BVHs via refitting, maintaining their original topology. We show that this approach can give error within 6% of recreating the entire hierarchy from scratch at each frame, while being two orders of magnitude faster, requiring less than 1 ms per frame for hierarchy updates for a scene with thousands of moving light sources on a modern GPU. Further, we show that with spatiotemporal filtering, our approach allows complex scenes with thousands of lights to be rendered with ray-traced shadows in 16.1 ms per frame.
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    Stochastic Lightcuts
    (The Eurographics Association, 2019) Yuksel, Cem; Steinberger, Markus and Foley, Tim
    We introduce stochastic lightcuts by combining the lighting approximation of lightcuts with stochastic sampling for efficiently rendering scenes with a large number of light sources. Our stochastic lightcuts method entirely eliminates the sampling correlation of lightcuts and replaces it with noise. To minimize this noise, we present a robust hierarchical sampling strategy, combining the benefits of importance sampling, adaptive sampling, and stratified sampling. Our approach also provides temporally stable results and lifts any restrictions on the light types that can be approximated with lightcuts. We present examples of using stochastic lightcuts with path tracing as well as indirect illumination with virtual lights, achieving more than an order of magnitude faster render times than lightcuts by effectively approximating direct illumination using a small number of light samples, in addition to providing temporal stability. Our comparisons to other stochastic sampling techniques demonstrate that we provide superior sampling quality that matches and improves the excellent convergence rates of the lightcuts approach.
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    Temporally Dense Ray Tracing
    (The Eurographics Association, 2019) Andersson, Pontus; Nilsson, Jim; Salvi, Marco; Spjut, Josef; Akenine-Möller, Tomas; Steinberger, Markus and Foley, Tim
    We present a technique for real-time ray tracing with the goal of reaching 240 frames per second or more. The core idea is to trade spatial resolution for faster temporal updates in such a way that the display and human visual system aid in integrating high-quality images. We use a combination of frameless and interleaved rendering concepts together with ideas from temporal antialiasing algorithms and novel building blocks-the major one being adaptive selection of pixel orderings within tiles, which reduces spatiotemporal aliasing significantly. The image quality is verified with a user study. Our work can be used for esports or any kind of rendering where higher frame rates are needed.
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    Patch Textures: Hardware Implementation of Mesh Colors
    (The Eurographics Association, 2019) Mallett, Ian; Seiler, Larry; Yuksel, Cem; Steinberger, Markus and Foley, Tim
    Mesh colors provide an effective alternative to standard texture mapping. They significantly simplify the asset production pipeline by removing the need for defining a mapping and eliminate rendering artifacts due to seams. This paper addresses the problem that using mesh colors for real-time rendering has not been practical, due to the absence of hardware support. We show that it is possible to provide full hardware texture filtering support for mesh colors with minimal changes to existing GPUs by introducing a hardware-friendly representation for mesh colors that we call patch textures. We discuss the hardware modifications needed for storing and filtering patch textures.
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    Real-Time Ray Tracing on Head-Mounted-Displays for Advanced Visualization of Sheet Metal Stamping Defects
    (The Eurographics Association, 2019) Dietrich, Andreas; Wurster, Jan; Kam, Eric; Gierlinger, Thomas; Steinberger, Markus and Foley, Tim
    Although interactive ray tracing has been around since the late 1990s, real-time frame rates had so far only been feasible for low and mid-size screen resolutions. Recent developments in GPU hardware, that specifically accelerate ray tracing, make it possible for the first time to target head-mounted displays (HMDs), which require constant high frame rates as well as high resolution images for each eye. This allows for utilizing ray tracing algorithms in novel virtual reality scenarios, which are impractical to do with rasterization. In this short paper we present our experiences of applying real-time ray tracing to the problem of detecting cosmetic defects in sheet metal stamping simulations by creating a virtual light cage.
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    A Practical and Efficient Approach for Correct Z-Pass Stencil Shadow Volumes
    (The Eurographics Association, 2019) Usta, Baran; Scandolo, Leonardo; Billeter, Markus; Marroquim, Ricardo; Eisemann, Elmar; Steinberger, Markus and Foley, Tim
    Shadow volumes are a popular technique to compute pixel-accurate hard shadows in 3D scenes. Many variants exist that trade off accuracy and efficiency. In this work, we present an artifact-free, efficient, and easy-to-implement stencil shadow volume method. We compare our method to established stencil shadow volume techniques and show that it outperforms the alternatives.