Image based lighting?

Bigjohn

Pretty straight forward question. Is image-based lighting (Marmoset-style) possible for outdoors lighting in UDK?

Couldn't find any info on it out there. But I did see some stuff about image-based reflections. Not sure if they can be used to accomplish the same thing.

Obscura

Cubemaps are working good for this. You can use a pre-made one (actually 2 because you need a blurred version of it for the glossiness), or you can capture it in real time, but this is hard to make it good because of the glossiness. I already working on this stuff, and my version is almost done.PM me if you are interested about it.

ZacD

Remember me used Unreal Engine 3, but they added their own render. Though I don't think it would be too hard to use cube maps with a custom lighting material to mimic the effect. It might be a good idea to have 3 or 4 different levels of blurred cubemaps for the different glossy values.

http://www.fxguide.com/featured/game-environments-parta-remember-me-rendering/

Dee

If this may help you so be it:
[ame="http://www.youtube.com/watch?v=0juJNTDSHII"]How to use DX11 Image-based Reflections in UDK - YouTube[/ame]

In world settings in dx11 there are a few lines dedicated to IBL, you might wanna have a look at this page:
http://udn.epicgames.com/Three/ImageBasedReflections.html

Bigjohn

Awesome. Thanks for the info everyone.

So basically I would make a base material that uses image reflections, and then derive all other materials I use from that one.

Vailias

BigJohn, I'd say.. sort of but probably not.

IBL works a bit differently, and yes a multi-cube map solution would likely be best at this point.
All the information I've found has there being a cube-map for diffuse lighting, and a separate one for specular. They are usually created offline.

I have a controllable cube map blurring material nearly complete that may be usable for such a purpose with in engine generated cubes even if its not physically accurate.