I have multiple gpus installed and found a forum post on vfxarabia [www.vfxarabia.co] where the user sets the opencl environment variable to “HOUDINI_OCL_DEVICENUMBER = 1”
Now in the preferences it is possible to do exactly this via visual selection.
BUT
The reason he does this is so that he can use his main Card for OpenCL acceleration and the weaker card for OpenGL viewport display.
My question now is does anyone know how I can set the OpenGL to use a specific card?
I tried setting “HOUDINI_OGL_DEVICENUMBER = 1” but it doesn't seem to have an effect.