[Bf-committers] Expanding the layers in Blender

[David Bryant]

The number you get when shifted is so large, it's hard for any compiler code 
to swallow.Just try it.
An array of ints are better.
----- Original Message ----- 
From: "Timothy Baldridge" <tbaldridge at gmail.com>
To: "bf-blender developers" <bf-committers at blender.org>
Sent: Tuesday, December 18, 2007 5:01 PM
Subject: Re: [Bf-committers] Expanding the layers in Blender


> "As mentioned in a previous post,bit fields to flag as layer numbers are 
> no
> good after you shift past 1<<31"
>
> I tried finding this in my archives here, but I could not. So please
> explain, why are they useless. What was wrong with the example I gave?
> All you need is a bitfield 8 ints long, and then loop it when it comes
> time to render. Create a global linked list with each item having a id
> for the layer they represent, and a string for the name.
>
> There's no reason to not use bitfields. They are fast efficient, and
> will be heavily optimized by the compiler.
>
> Timothy
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