Forum: Poser - OFFICIAL


Subject: Derivative nodes: du, dv, dpdv etc

iikuuk opened this issue on May 25, 2005 ยท 7 posts


iikuuk posted Wed, 25 May 2005 at 2:57 AM

What all this nodes are for? I was trying to attach and play a bit with these shader nodes, but when Firefly was reaching the material, it just stopped rendering. The reference manual just gives zero information as usually.
Anyone any clue?


JohnRickardJR posted Wed, 25 May 2005 at 3:21 AM

Du crashed firefly, the others work but do fairly odd things. They measure things like rate of change, so you could use them to make edges look different to the rest of a material, or U and V directions


iikuuk posted Wed, 25 May 2005 at 3:36 AM

Rite, thats exactly what i want, but just didnt try P4 render engine. though why does Firefly crash?


iikuuk posted Wed, 25 May 2005 at 3:57 AM

So it crashed P4 rendering for me. :) Ill keep on trying.


JohnRickardJR posted Wed, 25 May 2005 at 8:55 AM

No - the DU node crashes all the rendering engines The other nodes do not. Only the DU node is broken. The other nodes work fine in all rendering engine, the Du node is broken in all of them


iikuuk posted Wed, 25 May 2005 at 9:01 AM

Attached Link: http://www.runtimedna.com/messages.ez?Form.ShowMessage=134673

Thats right, anyway i found something, but that didnt solve my question yet. Ill try t do some testing. Check the URL.

nruddock posted Wed, 25 May 2005 at 1:30 PM

Attached Link: http://www.renderosity.com/messages.ez?ForumID=12390&Form.ShowMessage=2172183&Reply=2210056#8

The problem with the Du node may be related to name discrepancy mentioned in posts 8 & 9 in the linked thread.