GPU Boolean Evaluation for CSG Ray-Tracing

In BRL-CAD, some work has been done in order to optimize the ray-tracing process, with ray-intersection calculations implemented in OpenCL for several primitives, taking advantage of GPGPUs parallel mechanisms to render scenes in a faster way. I propose to continue the optimization of the ray-tracing in BRL-CAD, by implementing the CSG Boolean evaluation on the GPU using OpenCL.