You're mixing up bumpmaps and heightmaps. A heightmap is what you're
likely trying to plug into the bumpmapping port, basically a height
description encoded in a greyscale image where you want the bright sport
to appear up high in the bump mapping effect.
A bumpmap, and that's what bump-mapping inputs in the render tree expect
to be fed, is vector data. Image-wise it is encoded in RGB representing
XYZ. These images look pretty colourful and cannot easily be generated
manually unless you use some strange Photoshop plugins. To convert
heightmaps to bumpmaps you need the bumpmap generator node as suggested
by Wayne.
When you got the effect working and want to have a look at the actual
bumpmap which got generated by the bumpmap generator, directly plug the
bumpmap generator's output into the material's surface input. Then you
get to see what the bumpmap actually looks like...
Hope that helps.
-André
Adrian L wrote:
Just getting into XSI ourselves, we have noticed a weirdness when it comes
to bump-mapping. The rendertree seems to add a color2vector node that only
seems to mess up the texture. Is there some workflow that we're missing?
Enabling bumpmapping on the texture image node seems better, but not very
controllable...
Adrian L
-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
Matthew Lowery
Sent: Thursday, March 02, 2006 3:26 AM
To: XSI(at)Softimage.COM
Subject: RE: Future XSI versions, comments![Scanned]
I think soft should fix bump mapping before they even think about adding
any new features, xsi's bump mapping is an embarrassment.
m(at)
-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf
Of Christopher
Sent: 02 March 2006 09:06
To: XSI(at)Softimage.COM
Subject: Future XSI versions, comments![Scanned]
Hello, I have a comment on future versions of XSI. If softimage were
too port fxtree to foundation. And bring in a 3D paint app inside of
XSI and put that in either essentials or advanced. It's a simple
comment nothing mind blowing but just wanted to share.
Christopher
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