David

volumetric beam vs. background

9

just checked out the volumetric demo, and if you strafe downward you can see the beam nice and bright against the box but vanishes over background infinity

accel struct: ray classif via 5d subdiv

3

this looks interesting - http://artis.imag.fr/Members/Cyril.Soler/DEA/Ombres/Papers/Arvo.Sig87.pdf

rendering artifact

3

geometry showcase, where the red cylinder and ground intersect

if you are unfamiliar with bootstrapping, i recommend https://www.youtube.com/watch?v=Xz0x-8-cgaQ