Help with falloff node. What am I missing.

Forums: Help with falloff node. What am I missing.
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Help with falloff node. What am I missing.

Postby gordonrobb » Fri Mar 23, 2018 12:00 pm

gordonrobb Fri Mar 23, 2018 12:00 pm
Doing a bit of testing, trying to get a good see through plastic. I am wanting to use the falloff node to control the scattering.

here is my node setup....

ScreenClip.png


I have a white texture and a black texture through a mix node. With the mix at zero percent. This is what it looks like

Zero.jpg


At 100%, it looks like this.....

100.jpg


So I want to control this with a fall off. Which I have set to min 0 and max 1. But when I plug this into the mix, I get this...

Falloff.jpg


What they hell am I doing wrong?
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Re: Help with falloff node. What am I missing.

Postby baltort » Fri Mar 23, 2018 12:04 pm

baltort Fri Mar 23, 2018 12:04 pm
Hi,

What are your settings in the falloff node?

Cheers,

J.
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Re: Help with falloff node. What am I missing.

Postby gordonrobb » Fri Mar 23, 2018 12:29 pm

gordonrobb Fri Mar 23, 2018 12:29 pm
just the defaults. 1,0 and 6 (although I want it to be 10). there is a massive increase in how bright the surface is. Surely 1, should equate 100% mix, which should mean that part should just look like the surface does in the 100% image.
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Re: Help with falloff node. What am I missing.

Postby juanjgon » Sat Mar 24, 2018 5:46 pm

juanjgon Sat Mar 24, 2018 5:46 pm
I'm not sure what could be the problem. If you want to share the scene, I could take a look at it here.

Thanks,
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Re: Help with falloff node. What am I missing.

Postby gordonrobb » Sun Mar 25, 2018 3:51 pm

gordonrobb Sun Mar 25, 2018 3:51 pm
I’ll package it up when I get home. How do I send it to you? :)
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Re: Help with falloff node. What am I missing.

Postby juanjgon » Sun Mar 25, 2018 7:36 pm

juanjgon Sun Mar 25, 2018 7:36 pm
gordonrobb wrote:I’ll package it up when I get home. How do I send it to you? :)

You can attach it to a pm, or use my email [email protected]

Thanks,
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Re: Help with falloff node. What am I missing.

Postby gordonrobb » Mon Mar 26, 2018 8:42 am

gordonrobb Mon Mar 26, 2018 8:42 am
I have sent you the file. Let me know what I'm doing wrong :)
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Re: Help with falloff node. What am I missing.

Postby juanjgon » Mon Mar 26, 2018 11:39 pm

juanjgon Mon Mar 26, 2018 11:39 pm
Thanks, I've reported this issue to the Octane devs, because it sounds like a core issue to me.

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Re: Help with falloff node. What am I missing.

Postby gordonrobb » Tue Mar 27, 2018 8:34 am

gordonrobb Tue Mar 27, 2018 8:34 am
OK, thanks. So am I right in my assumption that this should allow me to blend between the two? And I wasn’t doing anything wrong?
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Re: Help with falloff node. What am I missing.

Postby juanjgon » Tue Mar 27, 2018 9:52 am

juanjgon Tue Mar 27, 2018 9:52 am
Yes, this is what I understand. To me, it seems some kind of issue on the Octane side with this shader setup.

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