Bug: Materials black again

Serengeti (Rhino BETA) Rendering WIP
1

(9.0.26167.11545, 2026-06-16)

The material “Edelstein” was made in V9 WIP, “Seiden…” was imported from the material library.

This is the Rendered display mode:

image
image845×478 17.3 KB

It renders fine in Raytraced.

We had this before; it was fixed, but the error is a revenant.

“Please copy paste system info.”
OK:

Rhino 9 SR0 2026-6-16 (Rhino WIP, 9.0.26167.11545, Git hash:master @ 57b70c19c1a95d556312e40efd60cd1c4e9f7aaf)
License type: Commercial, Build 2026-06-16
License details: Cloud Zoo
Expires on: 2026-07-31

Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 32GB)
.NET 10.0.9

Computer platform: DESKTOP

Standard graphics configuration using DirectX
Primary display: NVIDIA GeForce RTX 2070 (NVidia) Memory: 8GB, Driver date: 1-20-2026 (M-D-Y). DirectX(11)
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port 0
- Secondary monitor attached to adapter port 1

Secondary graphics devices.
None found.

DirectX Settings
Safe mode: Off

OpenBLAS: OpenBLAS 0.3.30 DYNAMIC_ARCH NO_AFFINITY Zen MAX_THREADS=64.

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp “Commands” 9.0.26167.11545
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoBonusTools.rhp “Rhino Bonus-Werkzeuge”
C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp “UpdatesAndStatistics” 9.0.26167.11545
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.26167.11545
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.26167.11545
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.26167.11545
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.26167.11545
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”

2

Just in case anyone’s interested:
Still in (9.0.26174.12303, 2026-06-23).

In the Thumbnail Properties, the default lighting is skylight.
When I change it to Simple, the preview comes to life.
But only for the single thumbnail.

In any case, this is a bug.

3

Hmm, it fixed automagically in (9.0.26181.12303, 2026-06-30).
May I know what caused the black previews?

4

I do not see a bug report for this, so it may have been a temporary issue that has been fixed.

if it returns please give a shout.

5

Perhaps you can make one?
For me it looks like a bug…
… because the materials are not shown where they should.

I’m tired of the surprise every 2nd version :laughing:

The materials are black again in (9.0.26195.12303, 2026-07-14).

6

can you send us this file? I’m not about to reproduce this issue. I’m wondering if it’s file specific.

7

It’s just a new file, and a new plastic material.
I’ll make such a new file next Monday.

8

weird.. all is working fine here with build
(9.0.26196.6303, 2026-07-15)
slightly newer build than you are using.

9

“Monday” :grinning_face:

2026-07-18_Empty_OneMaterial.3dm (31.9 KB)

In my logic it would be even more important to track the issue when it comes and goes.
If the effect is not known to the display masters it can easily slip into the V9 SR0.

Anyway, I now give up on on this.

11

I have alerted our dev team to see if we can figure out what is going on. The weird thing is it seems to be specific to your machine, as it so far, has not been reported by anyone else.

If it remains the case we still need to figure out why this is happening on your machine.

My first thought would be to do a reset on Rhino 9, then use optionsmigrate to bring your v8 settings back.

then I would do a clean install of a new graphics driver for your card.

also important would be to know if this is happening in both direct x (your current graphics pipeline) and in open gl, which you can change to in
tools>options>view>GPU>GPU technology = open gl

12

It was, but can’t find right now.

Tried before reporting.

No need.

Same with OpenGL.

Also the same on other of my computers.

So I don’t think

will help.

I bet in the next beta it will work again.

13

ok, I have let @andy know what’s up, I’ll let him decide how he wants to proceed, but IMO we should dig into this a bit if you are willing to lend us some patience.

14

@Charles Thanks for the report. I can reproduce this on my computer. Seems to be a problem with localization. Filed a bug: https://mcneel.myjetbrains.com/youtrack/issue/RH-97122

15

@lars
Ok, that’s fixed now.

The fix raises a new problem:

Rhino runs in German language.
I copied some files into this folder:
C:\Users\Charles\AppData\Roaming\McNeel\Rhinoceros\9.0\Localization\de-DE\Render Content\Texturen
Works all as expected.

Then I used English language for a while.

After switching back to German, my copied files are gone.
The “fill-the-folder-mechanism” may not delete files!
Only overwrite known files.

17

Thanks, I will investigate this asap.

18

I cannot reproduce this.

To go through the steps.

  • Step1: Start Rhino in German language.
  • Step2: Copy a new jpg somewhere under C:\Users\Charles\AppData\Roaming\McNeel\Rhinoceros\9.0\Localization\de-DE\Render Content\Texturen
  • Step3: Change language to English and restart Rhino.
  • Step4: Change language to German and restart Rhino.
  • I still have my copied textures in the Texturen folder.

Two questions.

Did you run the reset command? If yes, are the files in C:\Users\Charles\AppData\Roaming\McNeel\Rhinoceros\9.0_backup_*\Localization\de-DE\Render Content\Texturen

Can you send me a listing (image) of the C:\Users\Charles\AppData\Roaming\McNeel\Rhinoceros\9.0\Localization\de-DE\Render Content\ folder?

19

When I follow the steps 1-4 exactly, then my files are also still there.
I’m sure that wasn’t the case before.
Means, I can’t reproduce it as well.

No.
And no need to rescue the files, thanks for the hint.

I’ll watch for the deleted files effect, and when I know the exact steps to reproduce it, I’ll come back.

Verzeichnis von C:\Users\Charles\AppData\Roaming\McNeel\Rhinoceros\9.0\Localization\de-DE\Render Content\Texturen

11.08.2026 13:15 .
11.08.2026 12:57 ..
06.04.2026 16:21 35.074 18_percent_greycard.jpg
06.04.2026 16:21 35.074 18_Prozent_Graukarte.jpg
05.08.2026 10:53 8.697.094 4-bitmap-2-0801.tiff
06.04.2026 16:21 1.470.731 Bambus.png
06.04.2026 16:21 1.631.380 Bodendielen.png
06.04.2026 16:21 1.443.213 Buche.png
06.04.2026 16:21 5.740 Diagonaler Punkt.png
06.04.2026 16:21 1.318.050 Douglasie.png
06.04.2026 16:21 1.466.061 Eiche.png
06.04.2026 16:21 22.824 Einzelner Punkt scharf.png
06.04.2026 16:21 28.618 Einzelner Punkt verschwommen.png
06.04.2026 16:21 960.838 Elektrisch.png
06.04.2026 16:21 571.967 Faser 1.png
06.04.2026 16:21 1.786.051 Faser 10.png
06.04.2026 16:21 944.057 Faser 2.png
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06.04.2026 16:21 984.439 Faser 4.png
06.04.2026 16:21 689.717 Faser 5.png
06.04.2026 16:21 836.167 Faser 6.png
06.04.2026 16:21 1.649.411 Faser 7.png
06.04.2026 16:21 1.674.187 Faser 8.png
06.04.2026 16:21 1.884.216 Faser 9.png
06.04.2026 16:21 8.575 Fischgrätenmuster.png
06.04.2026 16:21 708.362 Gehämmert.png
06.04.2026 16:21 373.162 Gepunktet 1.png
06.04.2026 16:21 407.558 Gepunktet 2.png
06.04.2026 16:21 587.766 Gepunktet 3.png
06.04.2026 16:21 281.898 Gepunktet 4.png
06.04.2026 16:21 493.734 Gepunktet 5.png
06.04.2026 16:21 459.366 Gepunktet 6.png
06.04.2026 16:21 669.496 Gepunktet 7.png
06.04.2026 16:21 5.707 Gepunktet scharf 1.png
06.04.2026 16:21 9.352 Gepunktet unscharf 1.png
06.04.2026 16:21 1.675.405 Gewebt.png
06.04.2026 16:21 895.681 Granit.png
06.04.2026 16:21 2.706.542 Gras.png
06.04.2026 16:21 1.402.051 Heftige Schrammen.png
28.07.2026 09:44 Hintergrundmuster
06.04.2026 16:21 1.125.429 Kachel.png
06.04.2026 16:21 4.309 Kariert.png
06.04.2026 16:21 2.459.954 Kies.png
06.04.2026 16:21 1.229.199 Kirschbaum.png
06.04.2026 16:21 2.494.501 Kopfsteinpflaster.png
06.04.2026 16:21 1.839.879 Kork.png
06.04.2026 16:21 8.440 Kreuz.png
06.04.2026 16:21 766.381 Leder.png
06.04.2026 16:21 524.628 Leichte Schrammen.png
06.04.2026 16:21 1.506.919 Marmor.png
06.04.2026 16:21 1.270.297 Nussbaumholz.png
11.08.2026 12:14 13.914.101 Padding_4-bitmap-2-0801.af
11.08.2026 12:15 9.018.936 Padding_4-bitmap-2-0801.tiff
06.04.2026 16:21 290.140 Polster.png
06.04.2026 16:21 196.664 Punkt.bmp
06.04.2026 16:21 291.508 Raster 1.png
06.04.2026 16:21 411.260 Raster 2.png
06.04.2026 16:21 285.100 Raster 3.png
06.04.2026 16:21 398.787 Raster 4.png
06.04.2026 16:21 303.063 Raster 5.png
06.04.2026 16:21 66.801 Raster Sechskant.png
06.04.2026 16:21 177.107 Relief_Gesprenkelt.png
06.04.2026 16:21 100.536 Relief_Granulös.png
06.04.2026 16:21 2.095 Relief_Kreuz_Schraffur.png
06.04.2026 16:21 1.116.160 Relief_Leder.png
06.04.2026 16:21 25.183 Relief_Punkt.png
06.04.2026 16:21 1.932 Relief_Schraffur.png
06.04.2026 16:21 14.704 Rhino.png
06.04.2026 16:21 5.069.090 Rhino8_Automobil_Studio.exr
06.04.2026 16:21 4.539.458 Rhino8_Juwelier_Studio.exr
06.04.2026 16:21 7.356.237 Rhino8_Ländlich_Außen.exr
06.04.2026 16:21 9.670.898 Rhino8_Produkt_Studio_Bunt.exr
06.04.2026 16:21 2.863.708 Rhino8_Sonnenuntergang.exr
06.04.2026 16:21 7.815.675 Rhino8_Städtisch_Außen.exr
06.04.2026 16:21 2.967.409 RhinoHimmel.hdr
06.04.2026 16:21 4.132.448 RhinoInnen.hdr
06.04.2026 16:21 1.195.639 RhinoStudio.exr
06.04.2026 16:21 5.964.353 RhinoStudio.hdr
06.04.2026 16:21 827.822 RhinoStudio8.exr
06.04.2026 16:21 1.085.908 Sandstein.png
06.04.2026 16:21 263.864 Schnörkel.png
06.04.2026 16:21 1.206.739 Schottische Kiefer.png
06.04.2026 16:21 100.299 Stiche.png
06.04.2026 16:21 49.238 Viereck verschwommen.png
06.04.2026 16:21 376.102 VorschauStudio.hdr
06.04.2026 16:21 1.423.084 Ziegelstein.png
83 Datei(en), 136.283.978 Bytes
3 Verzeichnis(se), 85.176.508.416 Bytes frei