PUBLIC MARKS with tag raytracing

Now3D is a freeware program for Windows platform written in Visual Basic 6.

P5Sunflow is an easy way to make your Processing sketches look sexy as hell. Processing + Sunflow

Sunflow is an open source rendering system for photo-realistic image synthesis.

Abstract: Using the GPU to accelerate ray tracing may seem like a natural choice due to the highly parallel nature of the problem. However, determining the most versatile GPU data structure for scene storage and traversal is a challenge. In this paper, we introduce a new method for quick intersection of triangular meshes on the GPU. The method uses a threaded bounding volume hierarchy built from a geometry image, which can be efficiently traversed and constructed entirely on the GPU. This acceleration scheme is highly competitive with other GPU ray tracing methods, while allowing for both dynamic geometry and an efficient level of detail scheme at no extra cost.

Kerkythea is a freeware standalone ray tracer incorporating fast GI, a material editor and sun/sky settings, GL viewer, supporting 3ds, obj formats with Blender exporter available. It is under continuous refinement!