smallptCuda

A simple cuda version of smallpt with some memory optimization.

See more optimization details on Shawnlu and Bingo's blog.

Benchmark

	GTX1080Ti	Intel Xeon E5 (6C12T) 2.80GHz
Resolution	1024*768	1024*768
SPP	5000	5000
Cost Time	4.3s	32.1min

	GTX750	Intel Xeon E5 (8C16T) 2.40GHz
Resolution	768*768	768*768
SPP	2048	2048
Cost Time	19.0s	7.2min

Usage

Linux

$ git clone https://github.com/BentleyBlanks/smallptCuda.git 
$ cd smallptCuda 
$ git checkout release 
$ cd src && make 
$ ./smallpt 5000 
$ display test.png 

Windows

Supporting Visual Studio 2015 + Cuda 9.1

Enter the folder "smallptCuda", open smallptCuda.sln for more details.