Please Help! Render problem: turns black

Rendering
,
1

Hi, I need help ASAP. I’m new to Rhino, so I don’t really know how to fix this. I’ve noticed that parts of the building I created in Rhino turn completely black in Rendered Preview mode and Raytraced mode. Because of this, I’m not able to get any good render images.

I’ve updated to the latest version of Rhino. Does anyone know what the problem might be? I saw in another discussion that it could have something to do with materials not being fully loaded, but I was thinking it might be related to some settings I accidentally changed or an issue with the lighting.

tempImageccoJ03
tempImageccoJ031920×2560 728 KB

IMG_9899
IMG_98991206×866 169 KB

2

Hei Malin -

Please run the Rhino SystemInfo command and copy-paste its output here.
A simple 3dm file that shows what you are running into is also greatly appreciated. There is not much we can do with a few screenshots like that.
-wim

3

Hi, thank you very much for your respond. Here is the System info:

Rhino 8 SR29 2026-3-4 (Rhino 8, 8.29.26063.11002, Git hash:master @ bbd126f84fcdaf7a974615b7c9f4f8667571c147)
License type: Educational Lab License, build 2026-03-04
License details: Cloud Zoo

Apple macOS Version 14.6.1 (Build 23G93) (Physical RAM: 8GB)
Mac Model Identifier: MacBookAir10,1
Language: nb-NO (MacOS default)
.NET 8.0.14

Metal GPU Family Apple 7
Metal GPU Family Common 3
Metal GPU Family Mac 2
Graphics processors
Apple M1
Color LCD (1440 x 900 @ 60.00Hz)
GPU Vendor: Apple

USB devices
None

Bluetooth devices
None

Third party kernel extensions
None

Third party plugins
/usr/lib/swift/libswiftCore.dylib
/usr/lib/swift/libswiftCoreFoundation.dylib
/usr/lib/swift/libswiftCoreGraphics.dylib
/usr/lib/swift/libswiftCoreImage.dylib
/usr/lib/swift/libswiftDarwin.dylib
/usr/lib/swift/libswiftDispatch.dylib
/usr/lib/swift/libswiftIOKit.dylib
/usr/lib/swift/libswiftMetal.dylib
/usr/lib/swift/libswiftOSLog.dylib
/usr/lib/swift/libswiftObjectiveC.dylib
/usr/lib/swift/libswiftQuartzCore.dylib
/usr/lib/swift/libswiftUniformTypeIdentifiers.dylib
/usr/lib/swift/libswiftXPC.dylib
/usr/lib/swift/libswift_Concurrency.dylib
/usr/lib/swift/libswiftos.dylib
/usr/lib/swift/libswiftsimd.dylib
/usr/lib/swift/libswift_StringProcessing.dylib
/usr/lib/swift/libswift_RegexParser.dylib
/usr/lib/swift/libswiftCryptoTokenKit.dylib
/usr/lib/usd/libusd_ms.dylib
/usr/lib/swift/libswiftCoreAudio.dylib
/usr/lib/swift/libswiftCoreLocation.dylib
/usr/lib/swift/libswiftCoreMedia.dylib
/usr/lib/swift/libswiftCompression.dylib
/usr/lib/swift/libswiftCoreMIDI.dylib
/usr/lib/swift/libswiftAVFoundation.dylib
/usr/lib/swift/libswiftCoreML.dylib
/usr/lib/swift/libswiftFileProvider.dylib
/usr/lib/swift/libswiftIntents.dylib
/usr/lib/swift/libswiftAccelerate.dylib
/usr/lib/swift/libswiftGLKit.dylib
/usr/lib/swift/libswiftGameplayKit.dylib
/usr/lib/swift/libswiftMetalKit.dylib
/usr/lib/swift/libswiftModelIO.dylib
/usr/lib/swift/libswiftSceneKit.dylib
/usr/lib/swift/libswiftSpriteKit.dylib
/usr/lib/swift/libswiftVision.dylib
/usr/lib/swift/libswiftRegexBuilder.dylib
/usr/lib/swift/libswiftDemangle.dylib
/usr/lib/swift/libswiftShazamKit.dylib
/usr/lib/swift/libswiftObservation.dylib
/usr/lib/swift/libswiftVideoToolbox.dylib
/usr/lib/swift/libswiftWebKit.dylib
/usr/lib/swift/libswiftNaturalLanguage.dylib
/usr/lib/swift/libswiftSystem.dylib
/usr/lib/swift/libswiftMapKit.dylib
/usr/lib/swift/libswiftFoundation.dylib
/usr/lib/log/liblog_network.dylib

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
/Applications/Rhino 8.app/Contents/Frameworks/RhMaterialEditor.framework “Renderer Development Kit” 8.29.26063.1002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp “Commands” 8.29.26063.11002
/Applications/Rhino 8.app/Contents/PlugIns/NamedSnapshots.rhp “Snapshots” 8.29.26063.1002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/MeshCommands.rhp “MeshCommands” 8.29.26063.11002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp “RDK_EtoUI” 8.29.26063.11002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp “RhinoCycles” 8.29.26063.11002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoRenderCycles.rhp “Rhino Render” 8.29.26063.11002
/Applications/Rhino 8.app/Contents/PlugIns/AnimationTools.rhp “AnimationTools” 8.29.26063.1002
/Applications/Rhino 8.app/Contents/PlugIns/Displacement.rhp “Displacement” 8.29.26063.1002
/Applications/Rhino 8.app/Contents/PlugIns/PanelingTools.rhp “PanelingTools” 8.29.26063.1002
/Applications/Rhino 8.app/Contents/PlugIns/RhinoRender.rhp “Legacy Rhino Render” 8.29.26063.1002
/Applications/Rhino 8.app/Contents/PlugIns/SectionTools.rhp “SectionTools” 8.29.26063.1002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp “IronPython” 8.29.26063.11002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp “Grasshopper” 8.29.26063.11002
/Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCodePlugin.rhp “RhinoCodePlugin” 8.29.26063.11002

I have trouble attaching the 3dm file because it says it’s too big.

4

Hei -

You could try to just export one of the objects that is misbehaving and post that smaller file here.

Other than that, you can upload bigger files from https://www.rhino3d.com/upload/
Copy a link to this discussion into the comments field.
-wim

6

Thank you. Here is one of the objects that turns black when in render preview mode and raytraced. I have already sent in a copy of my file in the link you sent, but without link to this discussion.

Skjermbilde 2026-04-01 kl. 12.52.34
Skjermbilde 2026-04-01 kl. 12.52.34934×726 128 KB

Skjermbilde 2026-04-01 kl. 12.52.53
Skjermbilde 2026-04-01 kl. 12.52.53912×702 54.4 KB

1objectprobelm2.3dm (906.9 KB)

7

Check if you have duplicate geometry.

8

Bingo, it looks like this was the problem. I clicked on the objects that appeared black in Render view, and all of them had apparently been duplicated. I started deleting them one by one, and it seems like this was the issue.

Thank you so, so much for all the help, everyone. I’ve been trying to fix this problem for several days, and I’m so happy now. Thank you so much! :smiley: