Abstract
The interactive rendering of 3D computer graphics has approached the photorealistic quality, as evident by the vivid shading effects and lush outdoor scenes in recent game engines. Clearly, the traditional 3D graphics APIs are reaching their limits, and the need to switch to more extendable ray-tracing based techniques has arisen. In this work, we explore the fundamental differences between ray tracing based and rasterization based techniques, including how they are supported by the processors and by the programming platforms. We duplicate the typical shading effects in both ray tracing and rasterization, starting from the simple Phong lighting, to slightly more complex Whitted-style shadow and reflection. Although the rasterization-based techniques clearly outperform ray tracing in current generations of graphics processors, we show by more precise quantitative analysis that the performance gaps are not as wide as thought. And the gap may narrow further when the requirement of image quality increases in the future.
| Original language | English |
|---|---|
| Title of host publication | 2015 IEEE International Conference on Digital Signal Processing, DSP 2015 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 120-123 |
| Number of pages | 4 |
| Volume | 2015-September |
| ISBN (Electronic) | 9781479980581, 9781479980581 |
| DOIs | |
| Publication status | Published - 2015 Sep 9 |
| Event | IEEE International Conference on Digital Signal Processing, DSP 2015 - Singapore, Singapore Duration: 2015 Jul 21 → 2015 Jul 24 |
Other
| Other | IEEE International Conference on Digital Signal Processing, DSP 2015 |
|---|---|
| Country | Singapore |
| City | Singapore |
| Period | 15/7/21 → 15/7/24 |
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Keywords
- GPU shaders
- rasterization
- ray tracing
ASJC Scopus subject areas
- Signal Processing
Cite this
Performance comparison of rasterization-based graphics pipeline and ray tracing on GPU shaders. / Chang, Chun Fa; Chen, Kuan Wei; Chuang, Chin Chien.
2015 IEEE International Conference on Digital Signal Processing, DSP 2015. Vol. 2015-September Institute of Electrical and Electronics Engineers Inc., 2015. p. 120-123 7251842.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Performance comparison of rasterization-based graphics pipeline and ray tracing on GPU shaders
AU - Chang, Chun Fa
AU - Chen, Kuan Wei
AU - Chuang, Chin Chien
PY - 2015/9/9
Y1 - 2015/9/9
N2 - The interactive rendering of 3D computer graphics has approached the photorealistic quality, as evident by the vivid shading effects and lush outdoor scenes in recent game engines. Clearly, the traditional 3D graphics APIs are reaching their limits, and the need to switch to more extendable ray-tracing based techniques has arisen. In this work, we explore the fundamental differences between ray tracing based and rasterization based techniques, including how they are supported by the processors and by the programming platforms. We duplicate the typical shading effects in both ray tracing and rasterization, starting from the simple Phong lighting, to slightly more complex Whitted-style shadow and reflection. Although the rasterization-based techniques clearly outperform ray tracing in current generations of graphics processors, we show by more precise quantitative analysis that the performance gaps are not as wide as thought. And the gap may narrow further when the requirement of image quality increases in the future.
AB - The interactive rendering of 3D computer graphics has approached the photorealistic quality, as evident by the vivid shading effects and lush outdoor scenes in recent game engines. Clearly, the traditional 3D graphics APIs are reaching their limits, and the need to switch to more extendable ray-tracing based techniques has arisen. In this work, we explore the fundamental differences between ray tracing based and rasterization based techniques, including how they are supported by the processors and by the programming platforms. We duplicate the typical shading effects in both ray tracing and rasterization, starting from the simple Phong lighting, to slightly more complex Whitted-style shadow and reflection. Although the rasterization-based techniques clearly outperform ray tracing in current generations of graphics processors, we show by more precise quantitative analysis that the performance gaps are not as wide as thought. And the gap may narrow further when the requirement of image quality increases in the future.
KW - GPU shaders
KW - rasterization
KW - ray tracing
UR - http://www.scopus.com/inward/record.url?scp=84961320295&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84961320295&partnerID=8YFLogxK
U2 - 10.1109/ICDSP.2015.7251842
DO - 10.1109/ICDSP.2015.7251842
M3 - Conference contribution
VL - 2015-September
SP - 120
EP - 123
BT - 2015 IEEE International Conference on Digital Signal Processing, DSP 2015
PB - Institute of Electrical and Electronics Engineers Inc.
ER -