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Poser 12 F.A.Q (Last Updated: 2024 Sep 30 4:44 pm)



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Subject: Challenge: simulate the Cycle GlassBsdf node for FireFly

odf opened this issue on Dec 06, 2022 · 4 posts
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odf ( ) posted Tue, 06 December 2022 at 1:59 AM · edited Mon, 23 September 2024 at 1:32 AM
I'm trying to be nice and give my freebies materials that also work with Firefly. But the old Poser node system gives me the heebie-jeebies. Can anyone help?

-- I'm not mad at you, just Westphalian.

nerd ( ) posted Tue, 06 December 2022 at 1:45 PM
Forum Moderator

FireFly is a Reyes render engine and unlike cycles it's not confined by the physics of light. It's will do mostly anything it's told, even breaking the laws of physics. This also means it doesn't do any of the things light does without being told to.


Here's a fairly simple comparison between Tempest(FF) and Cycles(SF). Both doing basically the same thing.


odf ( ) posted Tue, 06 December 2022 at 5:22 PM

Thanks Nerd! That's a start. The Fresnel node produces refraction and reflection in my test scene, as advertised. However, if I apply the FF shader to a flattened box to simulate a glass pane, there doesn't seem to be any light going through the back face. I'm assuming that's a problem with my render settings. It took me a while to figure out decent SF settings, so I wouldn't be too surprised.

-- I'm not mad at you, just Westphalian.

odf ( ) posted Tue, 06 December 2022 at 6:08 PM

Ah, never mind, I just needed to increase the number of raytrace bounces.

-- I'm not mad at you, just Westphalian.

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