Texture ram usage 2004-05-27 - By Bernard Lebel
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All right Andr�,
Encore merci
Bernard
-- -- Original Message -- --
From: "Andr� Adam" <a_adam@(protected)>
To: <XSI@(protected)>
Sent: Thursday, May 27, 2004 3:42 PM
Subject: Re: Texture ram usage
> Basically yes, though there is a slight difference. Shadow maps are
> depth maps, storing depth information as a number per sample. So you're
> not dealing with a picture but with an array of numbers. I guess that
> mental ray uses 32bit precision per sample, which would make the
> equation below work for shadow maps as well.
>
> -Andr�
>
> Bernard Lebel wrote:
>
> >Is is the same for shadow maps then?
> >
> >Merci
> >Bernard
> >
> >
> >-- -- Original Message -- --
> >From: "Andr� Adam" <a_adam@(protected)>
> >To: <XSI@(protected)>
> >Sent: Thursday, May 27, 2004 2:04 PM
> >Subject: Re: Texture ram usage
> >
> >
> >
> >
> >>(SizeX * SizeY * total bit depth of all channels) / 8 = Size in Bytes
> >>
> >>In your example this would be (512 * 512 * 32) / 8 = 1048576 Bytes
> >>This size can increase by about 30% in case of mip-maps being created;
> >>but in such a case I'd go for .map texture files anyways, which get
> >>accessed directly on the hard disk instead of being loaded into memory.
> >>
> >>Hope that helps.
> >>
> >> -Andr�
> >>
> >>Bernard Lebel wrote:
> >>
> >>
> >>
> >>>Hello,
> >>>
> >>>In the same vain as how many ram a triangle uses, does anyone knows how
> >>>
> >>>
> >much
> >
> >
> >>>ram uses a texture of let say 512x512?
> >>>Or better yet, can this be expressed by an equation?
> >>>
> >>>
> >>>Thanks in advance
> >>>Bernard
> >>>
>
>
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