fxguide looks at V-Ray’s Stochastic Renderings


How V-Ray 3.4 brings realistic metallic and glistening surfaces to life.

Sparkling or glittering surfaces have always posed a big problem for computer graphics. The issue lies in the fact that the microscopic mirror-like flakes which give surfaces their glittery, sparkly properties (such as metallic car paint, or snow, or sand) are hard to render in a way which doesn’t look artificial from a distance.

With V-Ray 3.4, the issue is solved with the VRayStochasticFlakesMtl. This material acts just like a real sparkly surface, and even allows for colored flakes, without any of the memory or tiling issues which nixed previous attempts to create such surfaces.

The ever-reliable fxguide has a complete technical breakdown of Chaos Group’s groundbreaking work in this field, and it even explains how it relates to realistic human skin.

About the author

Henry Winchester

Henry Winchester is Chaos Group's chief writer and editor. He's passionate about VFX, arch viz and design. He lives in Bristol, UK, but you'll often see him at Chaos Group events in Europe and the US.