Quote -  Every time I try to use SLG rendering, after a few minutes it crashes and I see this in the log, [SLG] [PathOCLRenderThread::0] Rendering thread ERROR: clWaitForEvents(CL_OUT_OF_RESOURCES)  I haven't had any problems with the GPU rendering and the results have been very impressive but obviously the process takes a lot longer. Does this mean there is an issue with the OpenCL drivers? By the way, I did set the workgroup to 64 as you advise

There are two ways if using thw GPU, one is with Lux and one is with SLG. They are two different programs. If you run out of resources with SLG it probably means that the RAM in your GPU is not sufficient for the scene or the textures. You can try downscaling the textures, see the options in the Output tab. The other option is to use LuxRender 1.0RC3 with the GPU enabled. Lux doesn't use the GPU's RAM for storing data so it doesn't suffer from that limitation. It's not as fast but it might help you. All these considerations are variable with each scene. Simpler scenes might be able to be rendered with SLG.

Hope this helps.

Paolo

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