ray tracing with cuda
TRANSCRIPT
![Page 1: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/1.jpg)
Ray tracing with GPGPUs
Pedro G. M. R. Alves and Ricardo Biloti,Unicamp & INCT-GP, BR
quarta-feira, 21 de setembro de 11
![Page 2: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/2.jpg)
quarta-feira, 21 de setembro de 11
![Page 3: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/3.jpg)
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 4: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/4.jpg)
Ray Tracing
The ray theory is a high frequency approximation of the wave equation solution.
Rays are preferential paths for energy propagation.
quarta-feira, 21 de setembro de 11
![Page 5: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/5.jpg)
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 6: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/6.jpg)
Ray Tracing
Subsurface Model
quarta-feira, 21 de setembro de 11
![Page 7: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/7.jpg)
Ray Tracing
Subsurface Model
Propagation Times
quarta-feira, 21 de setembro de 11
![Page 8: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/8.jpg)
Ray Tracing
Direct Problem
Subsurface Model
Propagation Times
quarta-feira, 21 de setembro de 11
![Page 9: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/9.jpg)
Ray Tracing
Direct Problem
Subsurface Model
Propagation Times
Inverse Problem
quarta-feira, 21 de setembro de 11
![Page 10: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/10.jpg)
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 11: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/11.jpg)
Ray Tracing
Comparison between real and simulated data.
quarta-feira, 21 de setembro de 11
![Page 12: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/12.jpg)
Ray Tracing
Comparison between real and simulated data.
The synthetic model may need modification.
quarta-feira, 21 de setembro de 11
![Page 13: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/13.jpg)
Ray Tracing
Comparison between real and simulated data.
The synthetic model may need modification.
More rays to trace.
quarta-feira, 21 de setembro de 11
![Page 14: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/14.jpg)
Ray Tracing
Comparison between real and simulated data.
The synthetic model may need modification.
More rays to trace.
This step should be as fast as possible.
quarta-feira, 21 de setembro de 11
![Page 15: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/15.jpg)
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 16: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/16.jpg)
We need to solve a differential equation system to calculate a ray's path.
Ray Tracing
8<
:
@X@t = v2P
@P@t = 1
vrv
1
quarta-feira, 21 de setembro de 11
![Page 17: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/17.jpg)
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 18: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/18.jpg)
Runge-Kutta method to solve each equation.
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 19: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/19.jpg)
Runge-Kutta method to solve each equation.
Interpolation method to find velocity on the ray's path.
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 20: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/20.jpg)
Runge-Kutta method to solve each equation.
Interpolation method to find velocity on the ray's path.
Should be done fast.
Ray Tracing
quarta-feira, 21 de setembro de 11
![Page 21: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/21.jpg)
quarta-feira, 21 de setembro de 11
![Page 22: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/22.jpg)
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 23: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/23.jpg)
Sequential Processing VS
Parallel Processing
In the Past: Increasing a computer's performance -> Increasing CPU's operating frequency.
quarta-feira, 21 de setembro de 11
![Page 24: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/24.jpg)
Sequential Processing VS
Parallel Processing
In the Past: Increasing a computer's performance -> Increasing CPU's operating frequency.
Today: Multi-Core processors.
quarta-feira, 21 de setembro de 11
![Page 25: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/25.jpg)
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 26: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/26.jpg)
GPUs (Graphic Processor Unit).
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 27: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/27.jpg)
GPUs (Graphic Processor Unit).
Dedicated processor to the graphic card.
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 28: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/28.jpg)
GPUs (Graphic Processor Unit).
Dedicated processor to the graphic card.
Solution for graphic processing.
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 29: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/29.jpg)
GPUs (Graphic Processor Unit).
Dedicated processor to the graphic card.
Solution for graphic processing.
Graphic applications use a lot of parallel processing, so GPUs have to be good in it.
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 30: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/30.jpg)
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 31: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/31.jpg)
Cores
Price
CPU
10
High
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 32: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/32.jpg)
Cores
Price
CPU GPU
10 +400
High Popular
Sequential Processing VS
Parallel Processing
quarta-feira, 21 de setembro de 11
![Page 33: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/33.jpg)
quarta-feira, 21 de setembro de 11
![Page 34: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/34.jpg)
CUDA
quarta-feira, 21 de setembro de 11
![Page 35: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/35.jpg)
CUDA
Developed by NVIDIA.
quarta-feira, 21 de setembro de 11
![Page 36: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/36.jpg)
CUDA
Developed by NVIDIA.
Programs being executed on GPU.
quarta-feira, 21 de setembro de 11
![Page 37: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/37.jpg)
CUDA
Developed by NVIDIA.
Programs being executed on GPU.
GPU being used as a General Purpose processor (GPGPU), taking advantage of parallel processing capability.
quarta-feira, 21 de setembro de 11
![Page 38: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/38.jpg)
CUDA
quarta-feira, 21 de setembro de 11
![Page 39: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/39.jpg)
A thread is a portion of a program that runs independently of and concurrently with other portions of the program.
CUDA
quarta-feira, 21 de setembro de 11
![Page 40: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/40.jpg)
A thread is a portion of a program that runs independently of and concurrently with other portions of the program.
Thousands of threads running simultaneously on GPU against a few ones on CPU.
CUDA
quarta-feira, 21 de setembro de 11
![Page 41: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/41.jpg)
quarta-feira, 21 de setembro de 11
![Page 42: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/42.jpg)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 43: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/43.jpg)
Ray tracer
Ray Tracer application developed in C with support to CUDA.
quarta-feira, 21 de setembro de 11
![Page 44: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/44.jpg)
Ray tracer
Ray Tracer application developed in C with support to CUDA.
Excellent for CUDA implementation.
quarta-feira, 21 de setembro de 11
![Page 45: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/45.jpg)
Ray tracer
Ray Tracer application developed in C with support to CUDA.
Excellent for CUDA implementation.
Simultaneous path calculation for several rays.
quarta-feira, 21 de setembro de 11
![Page 46: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/46.jpg)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 47: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/47.jpg)
0
1000
2000
0 2000 4000 6000 8000
2000
3000
4000
5000
m/s
Ray tracer
Marmousi Modelquarta-feira, 21 de setembro de 11
![Page 48: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/48.jpg)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 49: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/49.jpg)
0
500
1000
1500
2000
2500
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
Depth (m)
Range (m)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 50: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/50.jpg)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 51: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/51.jpg)
0
1000
2000
0 2000 4000 6000 8000
2000
3000
4000
5000
m/s
0
500
1000
1500
2000
2500
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
Depth (m)
Range (m)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 52: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/52.jpg)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 53: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/53.jpg)
Ray tracer 0
500
1000
1500
2000
2500
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
Dept
h (m
)
Range (m)
quarta-feira, 21 de setembro de 11
![Page 54: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/54.jpg)
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 55: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/55.jpg)
Tracer supports parallel processing with CUDA (GPU) and sequential/parallel processing with the CPU.
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 56: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/56.jpg)
Tracer supports parallel processing with CUDA (GPU) and sequential/parallel processing with the CPU.
Processing performance by CPU uses GSL library.
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 57: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/57.jpg)
Tracer supports parallel processing with CUDA (GPU) and sequential/parallel processing with the CPU.
Processing performance by CPU uses GSL library.
CUDA doesn't support most of the common C libraries.
Ray tracer
quarta-feira, 21 de setembro de 11
![Page 58: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/58.jpg)
quarta-feira, 21 de setembro de 11
![Page 59: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/59.jpg)
Benchmark
quarta-feira, 21 de setembro de 11
![Page 60: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/60.jpg)
Benchmark application.
Benchmark
quarta-feira, 21 de setembro de 11
![Page 61: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/61.jpg)
Benchmark application.
GPU with CUDA.
CPU performing sequential processing.
CPU performing parallel processing.
Benchmark
quarta-feira, 21 de setembro de 11
![Page 62: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/62.jpg)
Benchmark application.
GPU with CUDA.
CPU performing sequential processing.
CPU performing parallel processing.
Least-squares method to analyse data.
Benchmark
quarta-feira, 21 de setembro de 11
![Page 63: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/63.jpg)
Benchmark
quarta-feira, 21 de setembro de 11
![Page 64: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/64.jpg)
Benchmark
CPU: Intel Xeon X5570 @ 2.93GHz, 4 cores | GPU: NVIDIA Tesla C1060 @ 1.3 GHz, 240 cores
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 200 400 600 800 1000
Processing time (s)
Rays
GPU with CUDACPU parallel
CPU sequential
quarta-feira, 21 de setembro de 11
![Page 65: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/65.jpg)
Benchmark
CPU: Intel Xeon X5570 @ 2.93GHz, 4 cores | GPU: NVIDIA Tesla C1060 @ 1.3 GHz, 240 cores
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 200 400 600 800 1000
Processing time (s)
Rays
GPU with CUDACPU parallel
CPU sequential
quarta-feira, 21 de setembro de 11
![Page 66: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/66.jpg)
Benchmark
CPU: Intel Xeon X5570 @ 2.93GHz, 4 cores | GPU: NVIDIA Tesla C1060 @ 1.3 GHz, 240 cores
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 200 400 600 800 1000
Processing time (s)
Rays
GPU with CUDACPU parallel
CPU sequential
quarta-feira, 21 de setembro de 11
![Page 67: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/67.jpg)
Benchmark
CPU: Intel Xeon X5570 @ 2.93GHz, 4 cores | GPU: NVIDIA Tesla C1060 @ 1.3 GHz, 240 cores
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 200 400 600 800 1000
Processing time (s)
Rays
GPU with CUDACPU parallel
CPU sequential
quarta-feira, 21 de setembro de 11
![Page 68: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/68.jpg)
Benchmark
quarta-feira, 21 de setembro de 11
![Page 69: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/69.jpg)
Benchmark
CPU: Intel Xeon X5570 @ 2.93GHz, 4 cores | GPU: NVIDIA Tesla C1060 @ 1.3 GHz, 240 cores
0
10
20
30
40
50
60
70
0 20000 40000 60000 80000 100000
Processing time (s)
Rays
GPU with CUDACPU parallel
CPU sequential
quarta-feira, 21 de setembro de 11
![Page 70: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/70.jpg)
Benchmark
quarta-feira, 21 de setembro de 11
![Page 71: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/71.jpg)
66%
Benchmark
against parallel processing performed by CPU.
quarta-feira, 21 de setembro de 11
![Page 72: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/72.jpg)
Benchmark
quarta-feira, 21 de setembro de 11
![Page 73: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/73.jpg)
82%
Benchmark
against sequential processing performed by CPU.
quarta-feira, 21 de setembro de 11
![Page 74: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/74.jpg)
Benchmark
quarta-feira, 21 de setembro de 11
![Page 75: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/75.jpg)
Benchmark
Processing Type / Processor Parallel/CPU Sequential/CPU
Parallel/GPU 66% 82%
GPU's performance increase against CPU
quarta-feira, 21 de setembro de 11
![Page 76: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/76.jpg)
Conclusion
quarta-feira, 21 de setembro de 11
![Page 77: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/77.jpg)
quarta-feira, 21 de setembro de 11
![Page 78: Ray Tracing with CUDA](https://reader031.vdocument.in/reader031/viewer/2022020718/544d00faaf7959f7138b4a4b/html5/thumbnails/78.jpg)
Acknowledgements
GêBR project
Petrobras
WIT Consortium
quarta-feira, 21 de setembro de 11