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Lamps

Posted: Fri Jan 12, 2018 12:02 pm
by Asticles
I've made a little test with a couple of lamps and dof.
I attach the scene but materials keep disconnected when I reopen it.
lux2_bidir.jpg
lux2.blend
(908.41 KiB) Downloaded 25230 times
Regards

Re: Lamps

Posted: Fri Jan 12, 2018 4:08 pm
by neo2068
Great image. The disconnecting of the materials is a known bug in blender which has been reported by B.Y.O.B. th the blender devs. The fix is now in trunk and will be part of a 2.79a release.

Re: Lamps

Posted: Tue Jan 23, 2018 7:04 pm
by david57
I tried this scene with the settings OpenCl : Path : Metropolis and has been crashing.
Sobol works fine.

Re: Lamps

Posted: Tue Jan 23, 2018 8:16 pm
by B.Y.O.B.
Check if your graphics card runs out of memory.
Metropolis sampler needs more VRAM than Sobol.

Re: Lamps

Posted: Tue Jan 23, 2018 8:22 pm
by Sharlybg
B.Y.O.B. wrote: Tue Jan 23, 2018 8:16 pm Check if your graphics card runs out of memory.
Metropolis sampler needs more VRAM than Sobol.
The problem is that currently not having the choice to select GPU device lead every opencl calculation to include intel integrated device. humm i guess .

Re: Lamps

Posted: Tue Jan 23, 2018 8:24 pm
by B.Y.O.B.
You can switch off "Use CPUs" and it should only run on your graphics cards.

Re: Lamps

Posted: Tue Jan 23, 2018 8:34 pm
by Sharlybg
You can switch off "Use CPUs" and it should only run on your graphics cards.
Only all installed discrete GPUs ?

Re: Lamps

Posted: Tue Jan 23, 2018 8:35 pm
by B.Y.O.B.
I think all GPUs with OpenCL driver installed.
In the background, these checkboxes are setting the properties

Code: Select all

opencl.cpu.use
and

Code: Select all

opencl.gpu.use
See https://wiki.luxcorerender.org/LuxCore_ ... er_Engines

Re: Lamps

Posted: Tue Jan 23, 2018 8:52 pm
by Sharlybg
B.Y.O.B. wrote: Tue Jan 23, 2018 8:35 pm I think all GPUs with OpenCL driver installed.
In the background, these checkboxes are setting the properties

Code: Select all

opencl.cpu.use
and

Code: Select all

opencl.gpu.use
See https://wiki.luxcorerender.org/LuxCore_ ... er_Engines
So in my case intel IGP will run.

Re: Lamps

Posted: Tue Jan 23, 2018 8:53 pm
by Dade
Sharlybg wrote: Tue Jan 23, 2018 8:22 pm Every opencl calculation to include intel integrated device. humm i guess .
Intel integrated GPU is ... not ... good, just don't use it, the are not designed for GPU computing. I assume BlendLuxCore doesn't yet support single OpenCL device selection, it is possible and I guess it is only matter of time before its arrive.