Issue: Add picture plane messes up PNG files

I have a problem with openig certain PNG-files via “Add picture plane”.
To illustrate the problem I attatched Three PNG files:

(1) issue__NOT_enough _space_to_edges.png
Open this file in Rhino via “Add a picture frame”
this file causes a problem: A thin horizontal black line is drawn in the viewport (rendered mode)
this black line is not a part of the picture and is just shown, when I open this PNG with Rhino.

(2) no_issue__enough _space_to_edges.png
Open this file in Rhino via “Add a picture frame”
this file doesn’t cause an issue.

(3) PNG_issue_rhino_viewport.jpg
This file is a commented screenshot. It illustrate how the problem appears on my computer.

If you take a look at the PNG files (1) & (2) you see that both pictures show just a black square - the rest of the picture ist transparent.
in file (1) the black square touches the right corner of the picture. This seems to cause the problem.
in file (2) the black square is in the middle of the picture. No issues here.

My conclusion: Only PNG-files where the motiv is surrounded by a transparent area might be shown properly in Rhino.

I hope I could describe my problem understandable. Does anybody know a solution?


To further define the issue it would help a lot if you run the Systeminfo command in Rhino and post the entire contents of the resulting file here.

Hallo back,

thats a good idea. So, here is my System Info.


Rhino 7 SR20 2022-7-12 (Rhino 7, 7.20.22193.09001, Git hash:master @ 9b19bfdb8c343dd6fa8df3514068defd72273d6f)
License type: Evaluation, build 2022-07-12
License details: Stand-Alone
Expires on: 2022-10-27

Windows 10 (10.0.19043 SR0.0) or greater (Physical RAM: 32Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA Quadro K4000 (NVidia) Memory: 3GB, Driver date: 4-27-2022 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 473.47
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
- Secondary monitor attached to adapter port #1

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 4-27-2022
Driver Version:
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 3 GB

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.20.22193.9001
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.20.22193.9001
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.20.22193.9001
C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.20.22193.9001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.20.22193.9001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”