Creating local fog/transition into empty space

[Anssi]

Maybe you could paint the walls with a gradient material as suggested for light cones in this thread:

Lighting Cones

Hi Does anyone know of any lighting effects to use within SU that doesnt require a rendering programme (im not at that level yet). Ive found a couple of ‘light cones’ on 3d Warehouse which do the job, but ideally I could find an effect that I can change the colour. Id love to give the ffect of light emmiting (immitting?) from a source… Thank You!