Rhino WIP Feature: Material Decals

[DavidEranen (David Eränen)]

In the Rhino WIP, we’ve added support for Material Decals.

What is this Feature?

The Material Decal feature lets you create decals that use full materials. This means a decal can look like metal, use a bump map, or use any other material setting. In previous versions, you were limited to applying a simple texture. It’s still possible to create simple texture decals like before.

Why this Feature?

Decals represent printed graphics applied to consumer products, packaging, or other public signage. Often, these graphics have certain properties, such as reflectiveness, bumpiness or texture. This was not possible in previous versions of Rhino, making the process tedious and convoluted for a simple sticker application.

Notes

This feature is still in the early stages.

Current limitations:

• Up to 3 material decals are supported per object in Rendered mode.
• The Material Decal feature is currently disabled in RhinoRender when doing CPU rendering on Mac due to a bug.
• RH-91746 Black decals show a white highlight.

Try the Material Decals…

We look forward to your feedback!

Download the Rhino WIP…

[Charles]

Hi @DavidEranen

Can you explain how to use the decal picture for Bump or Displacement?
When I ALT + drag the decal picture to bump/normal map, I don’t get an effect.

2nd:
In Raytraced the Base color is lost:

2026-03-16_Decal.3dm (670.3 KB)

[marika_almgren]

The Bump map issue has been logged here RH-93784
and the Raytraced issue is logged here RH-94037

[Charles]

@marika_almgren

The Bump map issue has been logged

Hmm, I thought it’s a knowledge deficit on my side…

[Charles]

Regarding Displacement:
Are there no other settings (quality/smoothing…) than the height?

[Jussi_Aaltonen]

For now only way to tweak the quality is from the Object properties panel Displacement tab - those settings work per object.

That image has high luminance spikes along the border of the @-sign. I don’t think those can be removed by the displacement.

[Charles]

@Jussi_Aaltonen

For now only way to tweak the quality is from the Object properties panel Displacement tab - those settings work per object.

That’s something you must know, and I didn’t when it’s about decals.
This is quite irritating, especially as the Displacement is not switched on:

@Jussi_Aaltonen

That image has high luminance

I know it’s not a good image for displacement.
I only play around.

[Jussi_Aaltonen]

@Charles

That’s something you must know, and I didn’t when it’s about decals.
This is quite irritating, especially as the Displacement is not switched on:

Yes, I agree. Ideally there wouldn’t be any need to adjust anything.