On Thu, 16 May 2002 14:09:19 +0200, "jmvdvalk" <jm.### [at] hccnetnl>
wrote:

>No, in 2.0. (You challenged me into checking the docs ;-)

Wrong. Automatic bounding, vista buffers, light buffers and union
splitting were introduced in FTPOV 2.2 (Faster Than POV), a patch
version made, IIRC, by Dieter Beyer. It was included in POV in version
3.0.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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Peter Popov <pet### [at] vipbg> wrote:
> Automatic bounding [...]
> were introduced in FTPOV 2.2 (Faster Than POV)

  But are bounding slabs the same thing as automatic bounding?

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

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Warp wrote:
>
>  But are bounding slabs the same thing as automatic bounding?
>

Yes, well... they are used in automatic bounding and in "manual" bounding.

From the 2.0 docs:

...
POV-Ray attempts so speed up the process by building a set of
invisible boxes, called bounding slabs, which cluster the objects together.
...


Version 2.0 did not have further bounding optimisations like vista-buffers,
light-buffers or the hierarchy of nested bounding slabs. However, for
certain
scenes, speed improvements were remarkable.
(that's why I remembered in the first place)

JM

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