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Poser Technical F.A.Q (Last Updated: 2024 Dec 04 2:47 am)

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Subject: Bump Maps Rendering Model's MESH in Poser 6+ ?

pizzone opened this issue on Aug 06, 2008 · 8 posts
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pizzone ( ) posted Wed, 06 August 2008 at 5:32 AM · edited Thu, 12 December 2024 at 11:37 AM

Hi,
I already checked previous posts so I know it's something other people found before. Using a bump map on a model in Poser 6 or 7 (I didn't check if it's the same for P5; for sure it wasn't in P4PP..) takes a very strange (and very annoying) effect: besides the desired bump effect you were actually looking for, carefully setting your bumpmap, you get a bonus: a light (but clearly evident) bump-effect that renders the mesh structure of the model. It happens both in Firefly and P4 rendering. At first I thought I forgot a "template layer" on my bumpmap, but in the end it looks like the effect is "mesh based" and comes out whenever you use a bump map. Well, as I alredy told, I'm not the first one to experience it, but did anyone succeed in solving it? Since it's present both in P6 and P7 it looks like e-frontier (or Curious Labs or whoever is the actual owner of P...) didn't notice it? Is there an update to solve the problem? I admit I didn't read all the posts about it, but I don't consider "solving the problem" setting the bump values to 0,00...; the mesh structure sure disappears... along with the bump effect you were looking for! Thanks to everyone who will have the patience to help,
              Alberto

Miss Nancy ( ) posted Wed, 06 August 2008 at 3:10 PM

post screen cap of bad bump/mesh interaction, along with screen cap of materials room
settings.  ISTR there was something about using gradient bump, or else just drop bump
and use displacement channel.


pizzone ( ) posted Wed, 06 August 2008 at 3:27 PM

OK, I'll try with displacement. Thanks

EnglishBob ( ) posted Wed, 06 August 2008 at 4:25 PM

Last I heard, bagginsbill had filed a bug report with Sith Micro - so there may be a fix sometime around Poser 9 or 10... :)

If you're using a map which uses mid-grey to represent "no bump", as Poser 4 bump maps did, you'll get this effect. You can use a math node to subtract 0.5 from the bump map, which will return the mid-point to zero. It helps on some maps, but won't be 100% effective on them all. 

pizzone ( ) posted Thu, 07 August 2008 at 4:41 AM

Thanks, I'll try that, too.

bagginsbill ( ) posted Thu, 07 August 2008 at 6:46 AM

I did post a bug, and they did fix it.

You want Poser 7 SR3.

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

EnglishBob ( ) posted Thu, 07 August 2008 at 3:39 PM

Kudos to SM, in that case. I retract my previous allegations of sloth. :-)

pizzone ( ) posted Fri, 08 August 2008 at 5:08 AM

Wow, I'm sure gonna grab that SR3!!!
Thanks to everybody!!!

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