On 13/05/2016 21:59, Jaime Vives Piqueres wrote:
> El 13/05/16 a las 20:22, Bob Frew escribió:
>> Hi all, whilst changing an old scene to work under 3.7 I found a
>> funny. Have narrowed it down to the following.
>>
>> using following code all is well and as expected, however if you
>> change the position of the plane to +2 you lose the sphere ??? Am
>> puzzled as to why.
>
>   Because planes do have an interior too. You must make it hollow when
> the media is inside (below) the plane.
>
> --
> jaime
Hi Jaime,
many thanks for that.
I had always thought of a plane as like a piece of thin paper and the 
"inside/outside" as more of a consistency thing with other objects.

			... cheers Bob

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