Amazon Web Services launched a new version of their Lumberyard game engine at SIGGRAPH. They advertise that the new version, Lumberyard Beta 1.10, is 50% original code from when they launched back in February 2016. The engine started as a fork of CryEngine, and I’ve watched it evolve rapidly since about November. They’re pushing the engine into sort-of an entity-component framework, similar to Unity, but with a focus on C++ and Lua. You create scripts that define some functionality, then place them on the relevant entities (versus making a hierarchy of strict subclasses like you would do in Unreal Engine 4’s C++ API).
Amazon’s visual scripting system, Script Canvas, was supposed to launch in 1.10 but I can’t see it mentioned so I’m guessing it slipped.
So what does the version have? Mostly a bunch of new rendering features. Lumberyard 1.10 adds temporal anti-aliasing and order-independent transparency. Lumberyard, because it is a deferred renderer, cannot use MSAA. The engine currently supports FXAA and SMAA, as well as supersampling of course, but 1.10 adds TAA, which blends parts of previous frames into the current one. Since the point of anti-aliasing is to know all the geometry that makes up a pixel, not just what is on top and dead center, sub-pixel variation should eventually average out to a clean image.
Order-independent transparency should be more interesting. I don’t think it’s currently available in Unreal Engine 4 or (stock) Unity 5, although I could be wrong on that, but it is noticeable for scenes with a lot of transparency. To drive the point home, NVIDIA Research made a demo in Lumberyard for GDC with glasses in a bar, embedded above. As the camera pans around the glasses, you can see the multiple reflections in the top-left side of the upside-down glass is much more stable on the left image, and where the two reflections meet in the center blends correctly.
Lumberyard 1.10 also includes a lot of editor UI tweaks, which isn’t appealing to write about but… honestly… that’s what you want in a professional content creation tool update. Their entity component tools seem to be growing nicely from the screenshots I’ve seen.