Info:
Indigo Renderer is an unbiased, photorealistic GPU and CPU renderer aimed at ultimate image quality, by accurately simulating the physics of light. State of the art rendering performance, materials and cameras models - it's all made simple through an interactive, photographic approach with few abstract settings, letting you concentrate on lighting and composing your imagery.
Brand new multi-GPU engine
Indigo's OpenCL-based GPU engine provides industry leading performance on Nvidia and AMD graphics cards. With a single modern GPU, it's approximately 10x faster than before. Simply add more GPUs and get the horsepower to quickly render incredible 4K images and animations.

Workflow & UI enhancements
A dark UI mode. Interactive material previews and light layer thumbnails. RGB colour curves and snappy trackball navigation. These are just some of the new features making Indigo 4 the most streamlined and enjoyable version yet.