UDK: help with Fog and Lights

JDLOKI

Hi guys,
I have had a little play around with fog in UDK, and I cant seem to get the effect of light glowing in the fog as seen in the pics below
Does anyone have any suggestions how I can make the lights in the scene affect the fog (re-create the ambient glow) or any other type of volumetric fog I can use to fake it?



Any and all help will be greatly appreciated,

Cheers guys

ArchNacho

I would also be very interested in this kind of information as well.

Lamont

It's going to be VERY expensive for an actual level. More quality you want, the less it will perform.

It's outlined pretty well on the UnrealED reference pages.

http://udn.epicgames.com/Three/VolumetricLightingGuide.html

Also, there's a HUGE UDK thread right above... . If you're looking for a more of a click and put solution, then you're looking in the wrong place.

Jesse Moody

yep please keep this stuff in the UDK thread.

gamedev

Sorry to tack on here - you could actually fake something pretty close to this quite easily. Put your fog in as a generic color. Then for light sources, use a glow sphere around them (this a sphere mesh w/ a non-directional, unlit material applied to it that fades out from the center). The glow sphere will add on top of the fog and give you the color you're looking for around lights w/ a bit of a foggy look too. Not perfect, but an option!

-Tyler

JordanW

this could be done a couple of ways

1 a mesh with edgefalloff and depth falloff like posted above

2 a lensflare that's billboard takes into account depth and fades apropriatly

3 a fog volume