[Bf-committers] BIH acceleration structure?
Yves Poissant
ypoissant2 at videotron.ca
Thu Feb 28 13:48:18 CET 2008
OK. I see what you mean. I found the "rt:0" button and I`m going to use it.
Very good suggestion. Thanks.
Yves
----- Original Message -----
From: "Nathan Letwory" <jesterking at letwory.net>
To: "bf-blender developers" <bf-committers at blender.org>
Sent: Thursday, February 28, 2008 4:33 AM
Subject: Re: [Bf-committers] BIH acceleration structure?
> On Thu, Feb 28, 2008 at 11:14 AM, Campbell Barton <ideasman42 at gmail.com>
> wrote:
>> Its really simple, just do.. if (G.rt==1) ...use bih...
>
> Or any other Secret value, like 42 or so.
>
> /Nathan
>
>>
>>
>>
>> On Wed, Feb 27, 2008 at 10:23 PM, Chris Burt <desoto at exenex.com> wrote:
>> > Just a suggestion: you could make use of Blenders "rt" button so that
>> > you can do speed comparison on the two inside one running instance of
>> > Blender just by setting some arbitrary integer value there for
>> > testing.
>> >
>> > Note: I don't know how to implement this myself but it seems like the
>> > 'standard' way to approach work like this.
>> >
>> > Good luck!
>> >
>> > --Chris
>> >
>> >
>> >
>> > On Wed, Feb 27, 2008 at 4:13 PM, Yves Poissant
>> <ypoissant2 at videotron.ca> wrote:
>> > > This is an update as to where I am on this.
>> > >
>> > > I've integrated Brecht's BIH patch into the source. I did not
>> apply the
>> > > patch as is. Instead, I copied the BIH source in a raytrace_bih.c
>> file and I
>> > > added an #if switch in RE_raytrace.h so I can easily switch from
>> the octtree
>> > > to the bihtree without disturbing any other files. I have also
>> included the
>> > > ray_face inersection code in the raytrace_bih.c file so I can
>> optimize this
>> > > part of the code too. The whole project builds OK. Now, I'm
>> printing the
>> > > current raytrace_bih.c file to analyse what is already implemented
>> and
>> > > figure what can be optimized and how.
>> > >
>> > > Yves
>> > >
>> > >
>> > >
>> > > ----- Original Message -----
>> > > From: "Yves Poissant" <ypoissant2 at videotron.ca>
>> > > To: "bf-blender developers" <bf-committers at blender.org>
>> > > Sent: Tuesday, February 26, 2008 5:52 PM
>> > > Subject: Re: [Bf-committers] BIH acceleration structure?
>> > >
>> > >
>> > > > OK. I'll work with the trunk (2.46)
>> > > >
>> > > > Thanks.
>> > > >
>> > > > ----- Original Message -----
>> > > > From: "Tom M" <letterrip at gmail.com>
>> > > > To: "Yves Poissant" <ypoissant2 at videotron.ca>; "bf-blender
>> developers"
>> > > > <bf-committers at blender.org>
>> > > > Sent: Tuesday, February 26, 2008 4:44 PM
>> > > > Subject: Re: [Bf-committers] BIH acceleration structure?
>> > > >
>> > > >
>> > > >> On Tue, Feb 26, 2008 at 12:37 PM, Yves Poissant
>> <ypoissant2 at videotron.ca>
>> > > >> wrote:
>> > > >>> Thanks Brecht for the patch. I will start with that and
>> optimize it. It
>> > > >>> is
>> > > >>> better to already have something to kick-start with,
>> especially since
>> > > >>> I'm
>> > > >>> new to the Blender source. When you say "that should work with
>> the
>> > > >>> latest
>> > > >>> svn". I guess that means the latest v2.50 branch. Right?
>> > > >>>
>> > > >>
>> > > >> Actually I'm pretty sure he means head - what will be 2.46..
>> 2.50 has
>> > > >> almost nothing in it..
>> > > >>
>> > > >> LetterRip
>> > > >
>> > > > _______________________________________________
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