[Bf-cycles] Zero-Angled Spotlight?

[Mohamed Sakr]

Hey Sergey,

I guess we can add a spread angle parameter to lights? "hemisphere cone"

On Tue, Sep 1, 2015 at 5:03 PM, Constantin Rahn <conz at vrchannel.de> wrote:

>
> It's not possible with cycles, but it's available in Luxrender 1.4+ and
> an area light with "laser on".
> http://www.luxrender.net/forum/viewtopic.php?f=16&t=11572
>
> http://www.luxrender.net/forum/viewtopic.php?f=12&t=11533
> "- add constantinfinite, laser lights"
>
> Sorry for pointing to other FOS software in the cycles ML. ;)
>
>
> Am 01.09.2015 um 16:51 schrieb Zauber Paracelsus:
> > The problem with that, however, is that the laser would be visible when
> > it is not passing through the mist as well.
> >
> >
> >
> > On 09/01/2015 10:48 AM, Mohamed Sakr wrote:
> >> actually this is not possible with lights, your only solution is a
> >> cylinder object "acting as your laser light" , and put an emission
> >> node in the volume output "leave surface empty"
> >>
> >> On Tue, Sep 1, 2015 at 4:42 PM, Zauber Paracelsus <zauber at gridmail.org
> >> <mailto:zauber at gridmail.org>> wrote:
> >>
> >>     Would it be possible to change the minimum angle width of a
> spotlight
> >>     from one degree to zero?  I was tinkering with a scene filled with
> >>     mist,
> >>     and wanted to create the effect of laser lights transmitting through
> >>     mist, which would scatter their light and make the beam visible.
> The
> >>     closest light I could think of that would produce the effect was a
> >>     spotlight, but due to its minimum angle width of 1 degree, I am
> >>     not sure
> >>     if I can accomplish the effect.
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> >>
> >>
> >>
> >>
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> >
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