Struggling with fluorescent plastic cup material

I am trying to create a neon glowing fluorescent plastic material and I am struggling to get that edge glow effect in material only.

Example:

right now I am using a plastic (Cloudy) with a Curvature and a gradient set to viewing distance to affect the Roughness. I am struggling on the wide variety of see through little bit of green to the very vibrant on the edges of the cup.

Example:

I’d start with richardfunnell’s reply in the old forum here: https://forum.keyshot.com/index.php?topic=6436.0

I think your test render is pretty close to the main part of the plastic, I think splitting the edges and applying an area light material should get you the rest of the way

I looked at that forum post, but I was hoping to do everything as a single material. I need something the other artists to use, and breaking edges and applying different materials are a bit beyond them. If I did it that way then I would need to do every single one of these products myself.

I did take another crack at it and I used curvature to get the edges and used different shades of green from that as the Color Transmision.


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Super fake and not perfect but easy to tweak, very simple single material.

ksp: https://we.tl/t-bbi53dTab4

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I used a similar aproach like Oscar, but with the advanced material to drive the highlights.
At first try, advanced should be enough to create the material. But I didn’t liked the thing area (not the edges). So I also used the dielectric as a base.

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Looks like you got some similar replies/approaches from the folks here. I did a tutorial on this topic some time ago: https://youtu.be/IYX6yfdhwq8

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Hi. I played around with this a while back and had some success with just a simple transparent plastic material. I’ve included the scene in case anyone thinks this is a good starting point.

Color is set via Diffuse and Specular Transmission. I used 90-100% for Specular Transmission Value and 20-30% for Diffuse Transmission value, keeping the Hue the same for both.

Product Lighting with Caustics off seems to work best.

Solo cup is from Michael Christensen on GrabCAD: Solo Cup CAD


Could not upload the scene for some reason - so here is a link (expires December 31, 2025): Neon Plexi Test scene

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Nice one! (20 characters)