Need Help

[Charless]

I want to replicate this cube in CD3 but I have no clue how? (forget the dark grey cube) Its about the thin lines with spectrum colors

 

[frank beckmann]

Do you mean the "rainbow" wire?

 

[Charless]

Yes Please

 

[frank beckmann]

Make a rainbow contour with an alpha channel for the plain part and simply map it onto the box.
Enable "Use alpha channel" IoR=1.

 

[Charless]

Great I'll try that THX Frank

 

[frank beckmann]

Honestly this is just a fake because I operate with double edges. In your example there are just single edges. Mmmh - that needs another approach and UV unwrapping.

 

[Charless]

I am happy with the result

 

[frank beckmann]

Ok. BTW you can use the Paperclip Icon to attach your images or drag them into the editor window to upload directly - instead of this foreign hoster.

 

[Charless]

Ok. BTW you can use the Paperclip Icon to attach your images or drag them into the editor window to upload directly - instead of this foreign hoster.

Sorry bad habbit

 

[frank beckmann]

This is done with unwrapping and a conical gradient. top and bottom polygons are deleted:

 

[ZooHead]

It could also be done all procedural.
But I think this is harder to do than other methods.
Too many fiddly things to deal with.

 

[frank beckmann]

Does your set-up renders 2 edges with different colors? Hard to tell from the gif.

 

[ZooHead]

I removed the top and bottom polygons so only where the sides join.

 

[frank beckmann]

I like that.

 

[ZooHead]

Here's a version with the Material Shader.

I did this to use the Emissive channel to brighten the colors.

 

[frank beckmann]

Just one last from me with real geometry from Spline+Isosurface if you don´t mind the "bubble"-corners. Colorflow is nice and smooth.