Merry christmas to you all.

THis is just a small demo of gpu path-tracing using glsl.So no Cuda here
The rendering is very simple, just trace a ray through the scene until a certain ray depth.
And if you hit a light source then add the light to the result.
So this is as basic as ray tracing can be. 

There are three versions using different sampling patterns and max ray depth.

A little tech stuff. The acceleration structure used to speed up the rendering is
a good old octree. This is mainly out of curiosity we use this method and we are 
aware the kd and bvh might be faster. But sometimes you need to backtrack and
investigate the knowledge of old.

But anyways hope you will enjoy and visit our blog in the future.

Best regards and thanks for downloading

The guys form CG-Lab

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