Red screen with WIP6 for mac

Still getting the same result even with the change in antialiasing.



Thanks for testing that guys. This feels like an issue with viewport sizes, but that is just a hunch. Does it seem to happen with the right-hand sidebar changes width? (That would resize the viewports).

Hi there,

I got the same red screens issue. Dan, that was what I mentioned in the post which you commented today.
I’ll pay attention to the right-hand sidebar following days and let you know.

System Info:
Rhino 6 SR15 2019-3-12 (Public Build, 6.15.19071.17016, Git hash:master @ 80bc96e53cec1661dd49148f78cdc85beecbcb03)
License type: Beta, build 2019-03-12
License details: Cloud Zoo. In use by: Natalia Oskina ()
Expires on: 2019-04-26

Apple Intel 64-bit macOS Version 10.14.3 (Build 18D109) (Physical RAM: 32Gb)
Mac Model Identifier: MacBookPro15,3
Machine name: MacBook Pro - Natalia
Language: en-SE (MacOS default)

AMD Radeon Pro Vega 20 OpenGL Engine (OpenGL ver:4.1 ATI-2.4.10)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

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

Vendor Name: ATI Technologies Inc.
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4080 MB
Graphics: Radeon Pro Vega 20
Displays: Color LCD (258dpi 2x)

Graphics processors
Intel UHD Graphics 630 (1536 MB)
Radeon Pro Vega 20 (4080 MB)
Color LCD (1680 x 1050)

USB devices
MOSART Semi.: 2.4G Wireless Mouse
Apple Inc.: iBridge DFR brightness
Apple Inc.: iBridge Display
Apple Inc.: Apple Internal Keyboard / Trackpad
Apple: Headset
Apple Inc.: iBridge ALS
Apple Inc.: iBridge FaceTime HD Camera (Built-in)
Apple Inc.: iBridge

Bluetooth devices
Broadcom: Magic Keyboard

Third party kernel extensions

Third party plugins

Rhino plugins
/Applications/ “RhinoCycles” 6.15.19071.17016
/Applications/ “Snapshots” 6.15.19071.1002
/Applications/ “Grasshopper” 6.15.19071.17016
/Applications/ “PanelingTools” 6.15.19071.1002
/Applications/ “Commands” 6.15.19071.17016
/Applications/ “Renderer Development Kit” 6.15.19071.1002
/Applications/ “RDK_EtoUI” 6.15.19071.17016
/Applications/ “Displacement” 6.15.19071.1002
/Applications/ “IronPython” 6.15.19071.17016
/Applications/ “Rhino Render” 6.15.19071.1002

I’m not a Mac user and I also didn’t follow along this thread closely – but I thought it might not hurt dropping that I have had a redness problem on Windows too: While RH6 was still in WiP. My problem was not graphics card related, it could finally get fixed by renaming a settings folder.

I can’t seem to trigger it by changing the width of the sidebbars. After I get the red viewport, resizing either of the sidebars (or hiding one of them) instantly corrects the issue. Resizing the main window also corrects the issue.


Ok, thanks for letting us know. It was worth a shot.

I’ve had red screens many times as well in V6 wip and most often where I recall this happening is when changing from one maximized viewport to another maximized viewport using the buttons in the upper left

In fact I just tried it again and it was fairly easy but not consistent to reproduce (15 MacBook Pro)

Once it is red I can fix it by sliding one of the side bars or going back to 4 views

After some observation, I noted that, as Gijs, I got red screens only if I maximise viewports by clicking on viewports’ buttons on upper left bar.

This seems to be fixed in the latest WIP (6.15.19099.12046, 2019-04-09). Have been trying to reproduce, but no red viewports yet.


Thanks for letting us know. We think we got it fixed just yesterday, but it is always good to hear that it really is fixed on your computer and not just ours.

Ola Steve!
Do you know exactly which kind of OpenGl Bug makes this “red screen” behavior on Macs?

We clear the windows with red so when we fail to draw OpenGL content that is what you see.

I haven’t heard of this happening recently. Are you seeing red views on your Mac?

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Ola Steve, on a different 3d software, Its why I would like to know whats make OpenGL fail in this specific case inside Rhino.
I am a software developer, we have Rhino users, its why we are curious about that.