Archive notice: This article was originally published on December 16, 2014. Links and embedded videos are preserved as part of the historical record.
The service pack brings many improvements. For one thing, rendering speed is said to have increased a notch, and new GPU features are now available.
V-Ray RT GPU now supports rendering hair and subsurface scattering. Light Cache Support now makes it possible to render interior architecture using the GPU. The service pack also added support for Microfacet GTR/GGX BRDF, which especially facilitates work with metal surfaces. Further improvements cover Geometriy, lighting, and much more. An overview of the features can be found here. The download is available free of charge to all V-Ray 3.0 users on the Chaos Group website.
Film about the features of Service Pack 1:
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