BlendLuxCore 2.1alpha3 (compiled from git tag with that version).
Playing with mirrors and beams. Would prefer to see beams in homogeneous volume with sky+sun active as I'm interested in varying the sun angle. Disabled sky+sun to see the beams better, and emit light beam directly from mirrors as a workaround.
Noticed odd thing. Light scattering only scatters after the beam is reflected (or if beam portion never reflected it scatters just fine). Changing eye depth & light depth does not change this. This effect is fine with me, and to be honest, preferable, but I thought I'd share.
See 1: Then see 2, with reflecting dish: And 3 better shows reflection twice. It is redder on second beam bounce: Any suggestions on getting beams visible in sky+sun appreciated, thank you. Right now beams are barely perceptible: To get the beams visible with sky+sun I'm thinking of using:
- A shadow over beams & scattering volume, but not occluding mirror
- Adjusting gains?
- Some sort of optical filtering trick? Polarizing filter? Changing reflection color doesn't seem to work by itself
- Light baffling. Mirrors reflect light into dark chamber, which has homogeneous scattering volume. This is what I'd expect to do with real light to make beams visible! But maybe there are other tricks? Now that I think about it, I really ought to just do this instead of asking.