Hydra support for offline renderers.

[ettiSurreal]

Recently there has been a proposal to integrate Moonray into the engine. However it is an offline renderer which isnt't really of use for games, and it's just one of many renderers out there.

However, there exists Hydra, which (from my understanding) effectively lets you plug in any renderer that has a hydra delegate, and Moonray and Cycles have those.

While it still wouldn't be of use for games, i can see potential for software similar to Material Maker, or just for in-editor renders and movies.