[Bf-cycles] Zero-Angled Spotlight?

[Zauber Paracelsus]

That gets it halfway working.  To get it fully working though, I have to 
turn up the volume scatter's anisotropy to full... and while that makes 
the laser beam visible only within the mist, it also makes the mist 
itself disappear :-/

On 09/01/2015 10:56 AM, Gottfried Hofmann wrote:
> Make it visible to scatter rays only (in the object tab -> ray visibility)
>
> On 01.09.2015 16:51, Zauber Paracelsus wrote:
>> 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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>