Beda Endre wrote:
Hi George,
when you send me yours test project, i can try to find out, what is wrong.
Great. I'll find something this afternoon.
George
Regards Endre
DI Endre Beda
Development and Research - Road Telematics
Kapsch TrafficCom AG
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-----Ursprüngliche Nachricht-----
Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im
Auftrag von George Jenner
Gesendet: Montag, 17. Oktober 2005 09:32
An: [email protected]
Betreff: 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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