Maybe this can help:

http://206.145.80.239/zbc/archive/index.php/t-20310-p-1.html

http://209.132.69.82/uploaded_from_zbc/200404/user_image-1083264276psu.jpg


Search for Realsoft on the first Links Page.

Best wishes,
Matthias


----- Original Message -----
From: "George Jenner" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, October 17, 2005 9:32 AM
Subject: Displacement maps (not Spline Modelling question)


> Endre Beda wrote:
>
> > Hi All,
> >
> > i have found in my archive this  "head displacement" project (and
> > uploaded it for you ;-), where you can try to evaluate imported zbrush
> > model:
> > http://www.irija.com/cgchar/dreamer/rs_zbrush_example.zip  4 MB
> > (sorry, but the texture is big!)
> > I think that author of the project is Andy.
> >
> > Regards Endre
> >
>
> Hello,
>
> That's nice of you, but I don't believe it works :-)  I mean using a
> texture to create displacement.  None of my experiments work as
> expected, so I'm going to tell the list what I expect and hope to be
> corrected.  (yes I have read and kept all the messages posted recently
> on this topic.  Is there a sample or a template?  If so I could study
> that first, but I can't find anything)
>
> What I understand is this:  I can map a greyscale bitmap to a surface
> and use the value of grey at any point to specify the displacement of
> the surface at render time.
>
> So Realsoft will read my bitmap and assign values of 0-1 depending on
> the greyness of the image.  Most people then scale it to between -1 and
> 1 (so a value of 50% grey will be no displacement) then scale it again
> to an appropriate size.
>
> For example, the attached image is 50% greyscale with numbers scribbled
> on it at different values of greyness.  Correctly mapped, this should
> not change my surface except at the numbers which will be extruded at
> render time either out or in, depending on their value of greyness.  Or
> have I misunderstood the concept completely?
>
> I've also noticed that .png works diffently to .jpg (I should say
> doesn't work differently).  Was that just me or is it an issue?
>
> Thanks for any help
> George
>
>
>
>


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