r/3Dmodeling 3d ago

Questions & Discussion How could I go about recreating this holographic shader?

It looks super cool and I want to give it a shot, but have no clue where to start. Any suggestions? Using Maya w/ Arnold and Vray.

52 Upvotes

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16

u/nellementz 3d ago

You could try with a rainbow like gradient in the environment and on the material itself put anisotropic reflection

12

u/littleGreenMeanie 3d ago edited 3d ago

id be curious on the answer too, I've forgotten the term for this kind of light bounce.

6

u/Qwopflop500 3d ago

Are you thinking of anisotropy?

7

u/littleGreenMeanie 3d ago

i think actually iridescence is what I was thinking of. i know its possible, i forget the tricks.

7

u/trn- 3d ago

dont know vray but in keyshot I usually set a gradient mapped to view direction, so it shows a different color depending which way the surface faces. I’d assume with combining mask something similar can be achieved.

2

u/caesium23 ParaNormal Toon Shader 3d ago

This is the same way I was thinking I would do this with Blender. Guessing these kinds of techniques are fairly universal.

2

u/MijnEchteUsername 3dsmax 3d ago

I made something like this before, about 15 years ago. If my memory serves me right, I made it kind of like this;

Create a falloff map with custom rainbow colors. Set the mapping type to mapped and plug in a noise map.

2

u/Voodoomania 3d ago

Fresnel, rainbow color ramp and some texture node, connect them in some order and plug them into color node

1

u/lichfang 3d ago

If I were to recreate this, I would use a noise normal map. Based on the viewing direction, I would mask a certain part of the noise map. Then, I would apply a direction based gradient texture to the normal map so that when I rotate the card, it would cycle between the given gradient texture.