[Bf-committers] MSVC compiler optimize flags

[Peter den Bak]

Hi,

Here is an other one.

Start a fresh blender.
Load form the 2.35 regression files the arealight file and press F12.
Now press F1 and load the only_shadow_material file and press F12.

The shadows are way too bright.

Somehow things from the arelight file are left behind in memory causing this
to happen.

When you load the only_shadow_material file in a fresh blender, it looks
fine.

This happens with the windows build, don't know if it happens on other
platforms as well.

Regards,

Peter


-----Original Message-----
From: bf-committers-bounces at projects.blender.org
[mailto:bf-committers-bounces at projects.blender.org] On Behalf Of Ton
Roosendaal
Sent: Sunday, November 28, 2004 11:34 AM
To: bf-blender developers
Subject: Re: [Bf-committers] MSVC compiler optimize flags

Hi,

I think Brecht has found the offending unused variables. So it's no  
MSVC optimize bug after all. :)

Related to this; I also heard the Windows version renders slightly  
brighter than Linux/OSX versions. Would anyone with both OSes available  
be able to test it? Maybe that's really related to optimize flags?

-Ton-


On 25 Nov, 2004, at 18:44, Peter den Bak wrote:

> Hi,
>
> /O1 and /O2 also do the trick, and are slightly faster.
>
> Regards,
>
> Peter
>
>
> -----Original Message-----
> From: bf-committers-bounces at projects.blender.org
> [mailto:bf-committers-bounces at projects.blender.org] On Behalf Of Ton
> Roosendaal
> Sent: Thursday, November 25, 2004 6:28 PM
> To: bf-blender developers
> Subject: [Bf-committers] MSVC compiler optimize flags
>
> Hi,
>
> While hunting a bug in the windows version, it appears that errors can
> happenn with certain compiler flags, and only in MSVC7, not in MSVC6
> (or so!).
>
> http://projects.blender.org/tracker/index.php?
> func=detail&aid=1842&group_id=9&atid=125
>
> Peter found a compiler option (/Ox) that seems to solve this error, but
> I'd appreciate an investigation what really goes on...
>
> - Are the default compile flags OK?
> - Is nothing affecting floating point precision?
> - Or maybe something that moves pointers to negative addresses?
>
> Thanks!
>
> -Ton-
>
>
> ----------------------------------------------------------------------- 
> -
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> Ton Roosendaal  Blender Foundation ton at blender.org
> http://www.blender.org
>
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------------------------------------------------------------------------ 
--
Ton Roosendaal  Blender Foundation ton at blender.org  
http://www.blender.org

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