# \#decals **URL:** https://discourse.mcneel.com/tag/decals/1644.md [Latest](https://discourse.mcneel.com/latest.md) · [Categories](https://discourse.mcneel.com/categories.md) · [Tags](https://discourse.mcneel.com/tags.md) --- ## [Using Displacement on a Decal](https://discourse.mcneel.com/t/using-displacement-on-a-decal/222211)
**Author:** [@Charles](https://discourse.mcneel.com/u/Charles)\ **Replies:** 6\ **Last updated:** [March 31, 2026, 9:08am UTC](https://discourse.mcneel.com/t/using-displacement-on-a-decal/222211 "2026-03-31T09:08:45Z")
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: 2… --- ## [Transparent Decal .PNG on Transparent Extrusion Issue](https://discourse.mcneel.com/t/transparent-decal-png-on-transparent-extrusion-issue/156765)
**Author:** [@TavVal](https://discourse.mcneel.com/u/TavVal)\ **Replies:** 4\ **Last updated:** [March 25, 2026, 3:52pm UTC](https://discourse.mcneel.com/t/transparent-decal-png-on-transparent-extrusion-issue/156765 "2026-03-25T15:52:38Z")
I need to apply a transparent .PNG Decal to a extrusion in Rhino and render the extrusion as a “transparent mylar/plastic card cover” see attached .jpg Problem is the .PNG is barley visible as a decal on the transpar… --- ## [Planar decal showing on multiple faces](https://discourse.mcneel.com/t/planar-decal-showing-on-multiple-faces/136256)
**Author:** [@jgillmanjr](https://discourse.mcneel.com/u/jgillmanjr)\ **Replies:** 6\ **Last updated:** [July 16, 2025, 8:54am UTC](https://discourse.mcneel.com/t/planar-decal-showing-on-multiple-faces/136256 "2025-07-16T08:54:47Z")
Hello! I’ve started using decals (handy!), but I’ve noticed that planar decals seem to be projecting on multiple faces like so: This is what things look like with the decal widget enabled: What option do I appea… --- ## [GhPython/RhinoCommon Decal Placement](https://discourse.mcneel.com/t/ghpython-rhinocommon-decal-placement/124845)
**Author:** [@pdanahy](https://discourse.mcneel.com/u/pdanahy)\ **Replies:** 23\ **Last updated:** [March 12, 2025, 2:02am UTC](https://discourse.mcneel.com/t/ghpython-rhinocommon-decal-placement/124845 "2025-03-12T02:02:14Z")
Is it possible to use the Decal Methods in the RhinoCommon library to update decal application based on a variable point position? I am struggling to find documentation and the Decal constructors aren’t working for me at… --- ## [Bug? Decals changes the material color (R8 Mac)](https://discourse.mcneel.com/t/bug-decals-changes-the-material-color-r8-mac/182465)
**Author:** [@jjn](https://discourse.mcneel.com/u/jjn)\ **Replies:** 4\ **Last updated:** [May 21, 2024, 1:06pm UTC](https://discourse.mcneel.com/t/bug-decals-changes-the-material-color-r8-mac/182465 "2024-05-21T13:06:48Z")
Hi, I have a model with a simple plastic material and if I add decals it changes color in from white to gray when I go to Raytraced mod. If I hide/deactivate the decals, same issue. The only things that restores the co… --- ## [PNG Decal affects base material](https://discourse.mcneel.com/t/png-decal-affects-base-material/173116)
**Author:** [@nrtreeves](https://discourse.mcneel.com/u/nrtreeves)\ **Replies:** 8\ **Last updated:** [January 11, 2024, 8:15pm UTC](https://discourse.mcneel.com/t/png-decal-affects-base-material/173116 "2024-01-11T20:15:41Z")
Hello. Just purchased Rhino 8 and am mostly delighted with it. However I’m having an issue with the Decals. I’ve created an Asphalt texture for a roof on a tower. When I apply the Decal to the surface it’s causing the … --- ## [Simulating Screen Printing on Glass Bottle](https://discourse.mcneel.com/t/simulating-screen-printing-on-glass-bottle/171622)
**Author:** [@rob18](https://discourse.mcneel.com/u/rob18)\ **Replies:** 4\ **Last updated:** [December 15, 2023, 11:49pm UTC](https://discourse.mcneel.com/t/simulating-screen-printing-on-glass-bottle/171622 "2023-12-15T23:49:29Z")
I have seen some posts that are “close” to this, but none quite address the challenge. I have a model of a clear glass spirits bottle that I want to simulate screen printing onto. Challenges include: image only on oute… --- ## [Request: Paste image as Decals with view projection](https://discourse.mcneel.com/t/request-paste-image-as-decals-with-view-projection/141648)
**Author:** [@laborda](https://discourse.mcneel.com/u/laborda)\ **Replies:** 7\ **Last updated:** [October 31, 2023, 8:04pm UTC](https://discourse.mcneel.com/t/request-paste-image-as-decals-with-view-projection/141648 "2023-10-31T20:04:44Z")
Hi All, I want to automate a process to project sketches over 3D models, a process I saw in Alias and would love to have, at least with an extra step. I think that we may be really close. What I want is to: 1 - Captur… --- ## [Decals (don't) switch direction when surface is mirrored (and stuff)](https://discourse.mcneel.com/t/decals-dont-switch-direction-when-surface-is-mirrored-and-stuff/159409)
**Author:** [@kral](https://discourse.mcneel.com/u/kral)\ **Replies:** 0\ **Last updated:** [May 5, 2023, 12:39pm UTC](https://discourse.mcneel.com/t/decals-dont-switch-direction-when-surface-is-mirrored-and-stuff/159409 "2023-05-05T12:39:38Z")
Hi, where does everyone map UVs? I figured it can’t be Rhino … When I map a decal on a surface and than mirror said surface the decal gets mirrored correctly but stay facing “Forward” or “Backward” instead of swithing … --- ## [Decal through glass in Rhino](https://discourse.mcneel.com/t/decal-through-glass-in-rhino/152305)
**Author:** [@Roberta\_R](https://discourse.mcneel.com/u/Roberta_R)\ **Replies:** 2\ **Last updated:** [December 19, 2022, 11:24am UTC](https://discourse.mcneel.com/t/decal-through-glass-in-rhino/152305 "2022-12-19T11:24:36Z")
Hello everyone, I am following a Rhino course, and my friend and I have been wondering what would be the best way to make a decal visible through a thin sheet of glass/transparent material so that it doesn’t look so flat… --- ## [Decal in a list to easily swap between](https://discourse.mcneel.com/t/decal-in-a-list-to-easily-swap-between/146944)
**Author:** [@Mattias\_Lissola\_Joha](https://discourse.mcneel.com/u/Mattias_Lissola_Joha)\ **Replies:** 2\ **Last updated:** [August 24, 2022, 6:20pm UTC](https://discourse.mcneel.com/t/decal-in-a-list-to-easily-swap-between/146944 "2022-08-24T18:20:12Z")
Hi, Is there any way to organize a bunch of quite similar decals in a list so I can easily swap between them, or turn them on and off, to see which one that I like the most on that particular surface. If not that would … --- ## [Feature Request - Single Face Planar Decals](https://discourse.mcneel.com/t/feature-request-single-face-planar-decals/136289)
**Author:** [@jgillmanjr](https://discourse.mcneel.com/u/jgillmanjr)\ **Replies:** 2\ **Last updated:** [January 13, 2022, 9:16pm UTC](https://discourse.mcneel.com/t/feature-request-single-face-planar-decals/136289 "2022-01-13T21:16:19Z")
Hello! Since it appears that planar decals currently will show on all faces in the same direction (see Planar decal showing on multiple faces - #2 by JP-Mike), I’m wondering how feasible it would be to implement the abi… --- ## [How to avoid decals being "projected" through objects?](https://discourse.mcneel.com/t/how-to-avoid-decals-being-projected-through-objects/124071)
**Author:** [@RIL](https://discourse.mcneel.com/u/RIL)\ **Replies:** 5\ **Last updated:** [May 12, 2021, 10:05am UTC](https://discourse.mcneel.com/t/how-to-avoid-decals-being-projected-through-objects/124071 "2021-05-12T10:05:43Z")
So when I apply a decal on a solid, the decal gets “projected” right through the object and gets smacked to any other surface(s) in its normal direction, as shown in the picture below. How can I avoid that? Fig 1. The …