Falloff?

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Racleborg
Posts: 611
Joined: Sat Apr 07, 2018 10:31 am
Location: UK

Falloff?

Post by Racleborg » Sat Feb 01, 2020 1:21 pm

Hi All
Is this how to create a type of falloff :?: (attached)
Thanks
Attachments
Annotation 2020-02-01 131759.jpg

Luximage
Posts: 62
Joined: Sun Jan 14, 2018 8:01 pm

Re: Falloff?

Post by Luximage » Sun Feb 02, 2020 3:30 pm

Also you can use a combination of these factors with the mix color or the band node.
falloff factors.blend
(577.51 KiB) Downloaded 52 times
falloff.jpg

Racleborg
Posts: 611
Joined: Sat Apr 07, 2018 10:31 am
Location: UK

Re: Falloff?

Post by Racleborg » Sun Feb 02, 2020 8:40 pm

by Luximage » Sun Feb 02, 2020 3:30 pm

Also you can use a combination of these factors with the mix color or the band node.
falloff factors.blend
(577.51 KiB) Downloaded 2 times
Many thanks. This info will be really helpful! :D

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SlowHand
Posts: 6
Joined: Sun Feb 09, 2020 12:39 pm

Re: Falloff?

Post by SlowHand » Mon Feb 10, 2020 4:37 am

You should calculate dot product between (shading normal vector) and normalized(camera_position - shading position).
c1.PNG
c11.PNG
I hard-coded the position of a camera.
It would be great if we could get the camera position and calculate a normalized vector from nodes.

Racleborg
Posts: 611
Joined: Sat Apr 07, 2018 10:31 am
Location: UK

Re: Falloff?

Post by Racleborg » Tue Feb 11, 2020 6:59 pm

Hi SlowHand

I will create the setup and play around with it quite a bit to try and get an understanding of what the nodes are actually doing. I'm a bit out of my depth at the moment. :oops:

Many thanks :D

PetrT
Posts: 55
Joined: Sun Dec 02, 2018 6:13 pm

Re: Falloff?

Post by PetrT » Wed Feb 12, 2020 7:31 am

Falloff become more close to Luxcore ;)

Yes it must be faced to camera always and camera position is needed

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