Help me enabling GPU Acceleration

[BmB]

SLG2 is a pure opencl renderer, that happens to be able to run on the cpu and gpu at the same time. That is totally different from a hybrid rendering method (and it also cannot support many of the features that can be done with hybrid)

Alright, so clearly this pure OpenCL implementation is quite superior, speed-wise, to the hybrid one. Whereas hybrid seems to be quite dependent on the scene, which reads to me as "dancing the edge of normal deviation". Indeed, in my case of a simple scene showing negative benefit.

[SATtva]

The problem (as Jason already noted) is that not all of the advanced Lux's features can be easily implemented in OpenCL using today's hardware and development tools.

[filanwizard]

what types of scenes in general benefit most from Hybrid mode instead of just plain CPU mode? since it was said not every scene has major gains.

[B.Y.O.B.]

what types of scenes in general benefit most from Hybrid mode instead of just plain CPU mode? since it was said not every scene has major gains.

IIRC for example scenes with about some 100,000 polygons or more (the luxball scene has about 300,000).

I'd be interested if textures impact the speed in hybrid rendering.

[Dade]

I'd be interested if textures impact the speed in hybrid rendering.

Nope, they don't, only the ray tracing process is shifted to the GPU. More triangles you have and more work for the GPU there is; anything else doesn't matter. However the settings of the hybrid renderer (i.e. ray buffer size, etc.) can be very important for the final performances.