Le 14/04/2012 13:34, Thomas de Groot nous fit lire :
> On 14-4-2012 12:00, Le_Forgeron wrote:
>> Le 14/04/2012 09:06, Thomas de Groot nous fit lire :
>>> On 14-4-2012 0:11, Alain wrote:
>>>> As of version 3.6 onward, +bxxx (Output File Buffer) is useless and
>>>> silently ignored.
>>>>
>>> Now that you mention this, since version 3.7 I have been using +bm2 in
>>> my ini out of habit. However, I am unable to find any reference to it in
>>> the docs and I don't remember its purpose. I am feeling a bit stupid
>>> now... :-)
>>
>> BM is bounding method (1 or 2, but can be disabled with -B )
>> Default is 1 (traditional bounding box).
>> Method 2 is using a BSP Tree (binary space partition tree)
>>
>> Some pathological scenes get benefit from method 2... or detriment.
> 
> OK. Then note that +BM1, or +BM2, or Bounding_method, do not exist as
> terms in the documentation index. Only BSP or BSP bounding refer to the
> paragraph.

For the curious:

http://wiki.povray.org/content/Reference:Tracing_Options#BSP_Bounding

I guess contribution in discussion might be welcome.

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