Question about LPV

[anonymous_user_a006f79c]

@Frenetic Pony;107708

Which is why Epic should try again, but with 3D textures and a novel compression scheme to save memory and parallelise sample access at the same time. No jumping around all over to get samples is much faster.

Radiosity also has it’s… well it’s cons are “lightleaking unless you have an insanely expensive solution”. So I don’t see it.

A realtime relightable environment would be the zeitgeist of the moment. You can go and buy Enlighten if you can afford it, which can do similar. Or Epic can go through and massively re-engineer its current offline setup. I’m imagining a hierarchy of cubemaps. If one could get, say, 0,0,0 as a color value to instead default that part of the cubemap to the next “level up” in the hierarchy, then one could picture as such.

Local cubemaps of say, a 10 by 10 meter room, with windows out clearing to a cubemap outside of a 30 x 30 meter area grabbing general larger structures, which when cut off clears to a 1km x 1km area cubemap grabbing the tallest buildings/general area, then a 20 x 20 km area grabbing distant mountains, and then finally the skybox cubemap. Asynchronously update the cubemaps, and you could have a slowly changing time of day/weather. Just a thought.

Sounds cool, last time I used Enlighten was 2012 so I’m reserving judgement of its latest iteration until I can see what’s going on it Unity’s house (leaking as mentioned etc.). Cubemap idea is neat, hmmm.

Anyway, I do think we need to come up with a solution with dynamic GI even if LPV isn’t the answer. Or even if Epic isn’t the one doing the engineering, a community project would be cool. Plenty of tech demos out there to start a base with :)…