Mix and cosine mix differences?

[lukas8410]

Hi,

so as in the topic: What are the differences between Cosine mix, and normal mix node in Octane render?

Thanks !

Luke

[sinesium]

I think it gives non-linear mix in values 0-Pi ( amount 0-100%) and intuitive non-linear control behaviour:
Amount 0%: tex1=100% tex2=0% ( as in linear )
Amount 50%: tex1=50% tex2=50% ( as in linear )
Amount 100%: tex1=0% tex2=100% ( as in linear )
But all between those states is non-linear as cos(x) gives. That is the point I think.

https://www.google.pl/search?q=cos(x)+w ... FguOgOM%3A

[lukas8410]

Thanks Man, although i understand nothing of it : D

Cheers
Luke

[sinesium]

look at the graph.
Cosine Mix is like balance between Left & Right but non-linear. Mix Tex is linear.

But Mix tex & Cosine Mix has 3 common points of control.
If you want to have 100% Left output for 0 Amount, 50% Left&Right in the middle and 100% Right output for Amount 1.0
both of mixer gives you that even if one of them is linear and second non-linear.

You can say that if you balance from Left to Middle value of slider then in Mix Tex output value changes quicker and in linear way against to Cosine Mix that changes output value slower at the beginning.