Fresnel Effect - Transparency.

[dreamy summit]

I have this fresnel effect and I want to know how I can make the white part transparent and change the colour of the black part

[late spruce]

If you want transparency you should first change the Surface Type under the Graph Settings to Transparent. That'll add an "Alpha" port to the fragment section of the master stack.

Making the "white" part of the Fresnel transparent would mean you want a value of 0 alpha there (and 1 for the black part). So you need to use a One Minus node to invert the Fresnel result. Then plug that into the Alpha.

For Base Color, just attach the Color node

[dreamy summit]

Do I plug in the fresnel effect to the one minus node?

[late spruce]

One Minus node to invert the Fresnel result
So yes.

[dreamy summit]

its transparent but I don't want to change the colour of the white part. I only want to change the colour of the black part.

[late spruce]

As in you want to keep the white part white?

[dreamy summit]

No I want the white part to be transparent and the black part to be a different colour that wont effect the white part

something like this

you see how the outer part is transparent and the middle part is a different colour

[late spruce]

Can you show a screenshot of your current graph and result?

[late spruce]

Okay, I understand now - you don't need the Multiply. Just attach the Color node straight to the Base Color

[dreamy summit]

its just makes the whole thing white

[late spruce]

Because the Color node is set to white, you can change the colour there (by clicking the white rectangle with HDR written on it)

If you want the inner and outer parts to be different colours instead, then you'd need two Color nodes/properties into A and B of a Lerp node and use the Fresnel as the T input.

[dreamy summit]

Thanks for the help!

Last question, How do I make it reflective?

[late spruce]

Easiest way would be to change the material type to Lit under the graph settings, that adds Metallic & Smoothness to the master stack which can make shiny/smooth/reflective type materials.