Don’t worry! It will be released for the public, to be play-able on all games soon. They’re currently restricting this to Studio only due to some bugs.
For example, from
this post announcing the release:
some of the things that are being asked for but not part of fib3
make light radius larger than 60. this has many internal implications that are not part of fib3. we’re thinking how to improve this, but not as part of this update.
autoexposure is not part of fib3, will be shipping it separately
surface light shadows. not planned as part of fib3 but we’re working on a solution for that
some surfaces are too glossy. this can be addressed either by changing the material or in near future by using SurfaceAppearance and customizing textures
few fixes went live with this update, here’s what’s fixed and had landed to production
narrow surface/spot lights looked broken
a potential crash when changing light parameters
local lights didn’t affect grass at all
surface guis lighting and fogging looked bad with fib3
what is fixed but hasn’t been shipped yet
spot light didn’t cast shadows through the parts they are attached to
light leaking through surfaces. although this is super hard to solve fully, it’s been substantially improved
shadows not being updated sometimes
weird shadow artifacts. this is hard to fully address but the artifacts were significantly reduced
we’re also looking into chaging the falloff of lights and also trying to better match overall shape and brightness of voxel and fib3 lights. we’ll update the post when next batch of fixes comes live
This is a large list of changes since it was released. As you can tell, the lighting wasn’t ready to be available to the public since there were a lot off issues.