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Poser - OFFICIAL F.A.Q (Last Updated: 2024 Nov 14 4:48 pm)

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Subject: Derivative nodes: du, dv, dpdv etc

iikuuk opened this issue on May 25, 2005 ยท 7 posts
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iikuuk ( ) posted Wed, 25 May 2005 at 2:57 AM ยท edited Thu, 14 November 2024 at 10:22 PM

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.

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