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Am 07.07.2017 um 20:10 schrieb omniverse:
> Cousin Ricky <ric### [at] yahoo com> wrote:
>> See thread in p.b.i. The scene uses two light sources, one to trace a
>> cylindrical parallel beam through two prisms and across a room, and
>> another, with media interaction turned off, to light the scene. The
>> latter light has a looks_like for what reason I don't remember. (This
>> was 12 years ago!)
>>
>> When the scene is rendered as an animation, the looks_like is omitted in
>> frame 2.
>
> Don't know the reason behind it but simply making the looks_like sphere hollow
> allows the photons to show.
Well, /I/ know the reason behind it now ;)
During refactoring for 3.7.0, a bug was introduced that may cause
objects in the same CSG group to mess with each others' `hollow` flag,
with the last object winning. In this case that happened to be the
non-hollow `looks_like` object.
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