That makes sense Raffaele but the D3 nromal shader does provide an influence parameter that does appear to work pretty much the way a bump map amplitude works.
AD
-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Raffaele Fragapane
Sent: Tuesday, February 28, 2006 1:16 AM
To: XSI(at)Softimage.COM
Subject: Re: XSI Normal Map node
amplitude on a normal map?
after the relief/displacement derived normals have been calculated, or if you're using a straight baked normals map (derivated from the difference between geometries, like in Zbrush), you don't have an "amplitude" anymore.
an amplitude is only possible when setting a height for a relief mapping of some sorts, once the normals are derivated there's no amplitude you can set for them.
I don't remember D3 having an amplitude parameter and I can't see how it could have had one, but then I haven't used it in ages and I'm maybe missing something.
******************************
| Raffaele Fragapane |
| Rising Sun Pictures |
| "Remember, TD is for TopDog" |
******************************
Andre DeAngelis wrote:
> Yes the XSI native normal map nodes seem to be lacking somewhat. I
> also noticed that there is no control for amplitude either.
> You'd think they woudl have though of these paramters when creating
> them, seeing as they already existed in D3.
>
> ----------------------------------------------------------------------
> --
> *From:* owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] *On
> Behalf Of *Michaël Bentitou
> *Sent:* Monday, February 27, 2006 3:23 PM
> *To:* XSI(at)Softimage.COM
> *Subject:* XSI Normal Map node
>
> Hey list -
>
> Maybe I'm missing something, but there doesn't seem to be a way to set
> the repeats for a normal map texture. I don't see a way of setting the
> repeats anywhere in the XSI Normal Map Node - even if you click on
> Edit, it brings another PPG to mess with the UVW Transformation, the
> Wrapping, even the Swap UV - but no repeats ??
>
> Anyway I'm using the D3 Node instead for the time being but
> nonetheless I'm still curious as to why we can't set the repeats... Anyone ?
>
> -=mb.
>
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