Rhino 6 Cycles Render AMD Radeon pro 580

Serengeti (Rhino WIP)
1

Hi All,
I am using a I-Mac 2017 edition with boot-camp windows with latest drivers and latest beta build of rhino 6. I am able to select AMD opencl for my Radeon pro 580 GPU. The issue is, the renders always come out black. I have tried ray-traced but it seems to never start. CPU rendering works for cycles and ray-traced fine.
I have also used cycles with this hardware with the latest blender version and everything renders correctly using the GPU as a render device.
Any help would be greatly appreciated as it’s annoying to have to export to blender to render an image. As GPU render time in blender is much faster then CPU in either programs.

2

AMD GPUs are a bit problematic, I am investigating as to why, I’d like to get full power from my RX 550. Unfortunately I haven’t been successful yet.

I haven’t had the GPU render black though. Are you running the latest drivers? For me Help > System Information reports:

Radeon RX 550 Series (OpenGL ver:4.5.13497 Compatibility Profile Context 23.20.782.0)

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

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: ATI Technologies Inc.
Render version: 4.5
Shading Language: 4.50
Driver Date: 10-20-2017
Driver Version: 23.20.782.0
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB

3

Hi ,
my current system info, i am running latest boot-camp drivers for my graphics card.
Rhino 6 SR0 2017-11-14 (Rhino WIP, 6.0.17318.8561

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)

Radeon Pro 580 (OpenGL ver:4.5.13476 Compatibility Profile Context 22.19.170.1536)

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

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: ATI Technologies Inc.
Render version: 4.5
Shading Language: 4.50
Driver Date: 7-20-2017
Driver Version: 22.19.170.1536
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 8 GB