Issue with RT GPU on OS X

[boyan]

Hey Greg,

You can try doing that:

make a backup file of /etc/profile -> (e.g. profile.save)

Open Terminal -> sudo nano /etc/profile

Clear all added registry - ### Chaos registry vray_rt_open_cl,

Copy/Paste

### Chaos registry vray_rt_opencl_device begin
export VRAY_OPENCL_PLATFORMS_X64="apple geforce gtx 980 ti gpu index 1 ; apple geforce gt 650m gpu index 2 ;"
### Chaos registry vray_rt_opencl_device end

Close the file, and try once again.

[Mnoloconic]

Just tried your suggestion boyan. Please see the attached images as it failed again.

[vladimir.nedev]

Just tried your suggestion boyan. Please see the attached images as it failed again.

Did you try my suggestion ?

Greetings,
Vladimir Nedev

[Mnoloconic]

Did you try my suggestion ?

Greetings,
Vladimir Nedev

I did yes, terminal couldn't find the directory. I also copied my own path but still no luck. my path is /Applications/Modo11.1v1.app/Contents/MacOS/modo

[vladimir.nedev]

I did yes, terminal couldn't find the directory. I also copied my own path but still no luck. my path is /Applications/Modo11.1v1.app/Contents/MacOS/modo

So, using your path, MODO ran, but still both GPUs were being used ?

Greetings,
Vladimir Nedev

[Mnoloconic]

no, using my path terminal just kept saying directory couldn't be found.

[vladimir.nedev]

When in the Terminal, you can use the "Tab" key to auto-complete the current directory.
So usually I write cd /App then press Tab so it autocompletes to cd /Applications .
Then add /Mo at the end and press Tab again so it becomes cd /Applications/Modo... with the correct path to MODO.
Then add /Con to that and so on.

If there are multiple auto-complete choices, it will show you all of them, and you will have to specify more letters until there is only one choice.

Starting MODO from the command line should certainly be possible.
I am sorry that you have to go through this, but until we add proper GPU devices UI inside MODO, it seems this is the only way to reliably specify the devices on macOS.

Greetings,
Vladimir Nedev

[Mnoloconic]

It doesn't work. I put in what you said and how you said it Vladimir but terminal doesn't even start modo. Its ok, I will wait so hopefully there will be something within the vray modo ui to change this gpu setting.

[vladimir.nedev]

So the GPU device selection inside MODO should be in tomorrow's nightly build ( 2018.01.27 ).
I've tested it only on Windows, you can give it its first test on macOS.
Hopefully it works, if not, Boyan will test it on Monday and I will be fixing it then.

Greetings,
Vladiimr Nedev

[Mnoloconic]

Oh my thank you so much mate

[Mnoloconic]

It works Both hybrid and just selecting one gpu Thank you again Vlad.

[vladimir.nedev]

Note that there are 2 nightly builds, the vray_adv_36001_modo_mavericks_x64_27989.rar is the one with the CUDA devices UI.

Greetings,
Vladimir Nedev

[vladimir.nedev]

It works Both hybrid and just selecting one gpu Thank you again Vlad.

Oh, great, glad that it works.

Greetings,
Vladimir Nedev

[Robert]

I once had a similar issue with Octane and it worked after installing the Nvidia drivers. Maybe that helps in the future.