OpenCL Real Time Voxel Raytracer - Soft shadows

Stochastic soft shadows implementation. Using the same denoiser as global illumination which works quite well in this case.

Data used http://www.pointcloudwarehouse.com/details.html?pointCloudId=565351d93598d06a642183f6

Music https://freepd.com/music/Amazing%20Grace.mp3 ... https://www.youtube.com/watch?v=9ztFgt7NDdc