I’m thinking about cases like Adventure Box
@roleary made this awesome voxel engine in JME3 Procedural voxel terrain and vegetation generation but his web-based voxel engine http://adventurebox.com/play-here/ is using Goo engine.
Due to the algorithmic nature of voxel worlds they don’t need huge client side data stores necessarily, but it would still be nice to be able to use the same code that natively targets desktop and mobile clients to run a browser version.
OK WebGL is limiting, but as we’ve already mentioned, a lot of the big name engines already do run in the browser, so the limitations can’t be insurmountable. For example: http://beta.unity3d.com/jonas/DT2/ and Mozilla and Epic Preview Unreal Engine 4 Running in Firefox - The Mozilla Blog