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How to mix two textures by "screen".

PostPosted: Tue Apr 22, 2014 4:56 pm
by R_Flash
Hi. I need mix two raster textures in material by "screen". I find only multiply. Cinema "layer" work with errors. Thanx!

Re: How to mix two textures by "screen".

PostPosted: Tue Apr 22, 2014 5:16 pm
by aoktar
did you see mixtexture? It's for mixing two textures. you can put any other texture to amount slot or just use slider of amount

Re: How to mix two textures by "screen".

PostPosted: Tue Apr 22, 2014 5:32 pm
by atome451
Indeed! With the base texture as texture 1, a RGB white as texture 2 and the "screen" texture as amount in a MixTexture node, you'll have the same result as screen fusion in Photoshop.

Re: How to mix two textures by "screen".

PostPosted: Wed Apr 23, 2014 7:19 am
by R_Flash
Thanks guys! It`s worked

Re: How to mix two textures by "screen".

PostPosted: Sun Feb 26, 2017 2:51 pm
by pavel3d
atome451, could you be so kind to provide an cinema scene with two textures mixed in "screen" mode.
I got two textures one is "asphalt" and the other is " white road marks", you said that "screen" should be placed in the amount channel, but there's no screen in octane :)
Thanks :)

Re: How to mix two textures by "screen".

PostPosted: Sun Feb 26, 2017 8:59 pm
by milanm
pavel3d wrote:atome451, could you be so kind to provide an cinema scene with two textures mixed in "screen" mode.
I got two textures one is "asphalt" and the other is " white road marks", you said that "screen" should be placed in the amount channel, but there's no screen in octane :)
Thanks :)


Hi

A while ago I made a few blending mode setups. There's much more than just screen. Check out the scene files. I hope that helps.

https://render.otoy.com/forum/viewtopic.php?p=284085#p284085

Edit: also new 3.06 test release has this functionality built in so setups like this will not be needed in the future.

Regards
Milan

Re: How to mix two textures by "screen".

PostPosted: Thu Sep 19, 2019 9:24 pm
by blastframe
Screen.png


Here is a scene file with a texture using Screen Blend Mode:
Octane_ScreenMaterial.zip
(211.61 KiB) Downloaded 24 times

Re: How to mix two textures by "screen".

PostPosted: Thu Sep 19, 2019 9:26 pm
by aoktar
blastframe wrote:
Screen.png


Here is a scene file with a texture using Screen Blend Mode:
Octane_ScreenMaterial.zip

Nice but it's easier to do with OSL nodes anymore.

Re: How to mix two textures by "screen".

PostPosted: Thu Sep 19, 2019 9:30 pm
by blastframe
aoktar wrote:Nice but it's easier to do with OSL nodes anymore.


Cool! I don't know much about OSL nodes. How would setting up a blend mode work? I searched the forum but didn't find anything.

Re: How to mix two textures by "screen".

PostPosted: Thu Sep 19, 2019 10:01 pm
by aoktar
Something like this, very simple.
https://en.wikipedia.org/wiki/Blend_modes#Screen