The document discusses FireRender and FireRays, two GPU-accelerated ray tracing solutions. FireRender is a physically based rendering library that performs path tracing on the GPU using OpenCL. It provides features like cameras, lights, materials and multi-GPU support. FireRays is a ray intersection library for developers to integrate into their renderers. Examples are provided showing FireRender's API and capabilities like layered shaders. Performance benchmarks show a 5 second render time on dual Radeon Pro Duo GPUs.