View Full Version : change the Alpha depth Factor.

07-21-2009, 03:36 PM
Hi, i know where to change the alpha depth factor when i import a OBJ. is one of the option of the PPG when you import it. but if you have every thing set up all ready, where i can change that?. we just start using zbrush at work =).


07-21-2009, 04:43 PM
Bring up your rendertree with 7 and generally the first node hanging off of the displacement plug will allow you to change the values as they are generally -? to +? this is the value you enter into the alpha depth, if you do go higher on those numbers to get more depth, remember to increase your displacement values under your geom approx.

I dont really use the OBJ rendertree setup for displacing since it doesnt really give you the full control to get a great looking displace. But it works ok.

Hope it helps,

07-22-2009, 02:40 PM
Hi thanks, i got this post yesterday night.



under geometry aporximation i set Max to be 2.2
and range -1.1 to 1.1 and did it work,
subdivision to 7

still dosnt look the same way as in zbrush =) even that my model in zbrush was only subD to lvl 6.

07-22-2009, 04:07 PM
This tutorial has a lot of good information about displacement in XSI, even though he is using a Mudbox map. The URL keeps messing up when I post. "c g a r e n a" keeps turning into ******* when I post so replace the ******* with "c g a r e n a" (no spaces). Is "c g a r e n a" a bad word around here?

www.*******.com/freestuff/tutorials/mudbox/mudbox2009/mudbox_xsi.html (http://www.*******.com/freestuff/tutorials/mudbox/mudbox2009/mudbox_xsi.html)

I also recommend using Multi Displacement Exporter in Zbrush with quick code DE-LCEC-EAEAEA-nRatioXSI

07-22-2009, 04:45 PM
well the difference in that case is that he use he set the range of the picture to be 0 to 1,
wile we use -1 to 1
he also use a EXR format and not a tiff.

and on the max displ. he set it up to 20.

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07-22-2009, 04:45 PM
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