XRadiance is 3D rendering software based on the Photon Tracing Algorithm and using the power of the pipeline of your graphic card (GPU), to compute your images. It enables users to browse in real time, in 3D scenes with all rendering features, except shadows, reflections and refractions. All special effects are available (Depth of field, fog, or Lens flare). A tree, that describes the current scene, allows the user to edit all parameters like Photon Tracing Parameters, Camera, Ligths, Meshes, Materials and special effects, in real time.
The trial version supports images only up to 640x480 and doesn't import 3Ds.