Why is my Normal map Jumbled?

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

Thread Tools Display Modes
  06 June 2013
Question Why is my Normal map Jumbled?

I am new to MB, so forgive my ignorance if this turns out to be a simple issue.
So here is what I did step by step

1. I created a base model in 3DS Max
2. Imported the model as an obj into MB
3. Sculpted on it until lvl 5 and was done
4. I wanted a Normal map from lvl 5 to apply to my base in 3DS Max
5. Realized I didn't have UVs.
6. Exported the lvl 0 out of MB and imported it into Max and created UVs from that model
7. Exported the new UV mapped version from 3DS to obj (again).
8. Imported the UVs into MB from the obj

I go to the "UV view" and the layout looks fine, just like I laid them out. However when I generate a Normal map it looks like all the polys are turned on random angles. They are all where they should be, but they are all random...As if the higher level didn't get the message that the UV mad was new or something.
Randell Trulson
  06 June 2013
try to import the lowres as new object...
and bake from the high to this new imported mesh...
  06 June 2013
max seems to re-order the verts at some stage when exporting/importing OBJ files so this tends to not work.
  06 June 2013

Thanks guys. I did import the MAX model and then use that as the target. I don't understand why, but it bitched that the UV set was incomplete. I told it to use it anyhow. It worked better, but there still seemed to be wonky. The hair grooves which should be mostly linear have like a sign wave in them. Sigh...Anyhow, for the time being I just imported the high res version into 3DS and ran a pro-optimizer on it. Even at 1 percent it looks very close to the mudbox version.
Randell Trulson
  06 June 2013
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
Thread Closed share thread

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Society of Digital Artists

Powered by vBulletin
Copyright ©2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump

All times are GMT. The time now is 10:28 AM.

Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.