[Bf-cycles] Preview Render Scene
Thomas Dinges
blender at dingto.org
Mon Jan 28 00:08:00 CET 2013
As I wrote, it's pretty efficient. It uses only 2 Transmission bounces,
1 Glossy bounce and even 0 Diffuse bounces.
Each preview is also pretty low poly (Monkey has about 8k verts, not
sure if we reduce this without affecting quality too much).
Anyway, I don't want to compromise too much. If people have an old
system, there is nothing we can do about it.
The preview should be still much faster than a 3D view render, as it's
fairly small and if people don't want/need it, they can simply close the
"Preview" panel. :)
Am 27.01.2013 23:59, schrieb Paulius Mscichauskas:
> In my opinion the preview scene should be as primitive as possible
> with as much saving on polygons and light interactions as possible.
> It should be set to render pretty much instantantly even on really
> slow machines.
> How far can this be dumbed down to still be pretty, but also as fast
> as possible?
>
>
>
> On 28 January 2013 00:40, Thomas Dinges <blender at dingto.org
> <mailto:blender at dingto.org>> wrote:
>
> Hey Sergey and Brecht,
> here is my Cycles Preview Scene attempt:
>
> Image: http://blender.dingto.org/dev/preview_render_cycles.jpg
> Blend: http://blender.dingto.org/dev/preview_cycles.blend
>
> What works:
> * Material Preview
> * World Preview
> * Lamps (Point, Spot and Area)
>
> Open issues:
> * Sun and Hemi Lamps do not work (most likely to the closed mesh)
> * As it uses the scene settings of the preview.blend, we have a issue
> with OSL.
> Either we enable OSL in the preview.blend (a bit slower then) or we
> won't have OSL previews. Alternative would be to override this
> parameter.
>
> It's fairly efficient (preview renders in <=1s here on my i7 2 GHZ and
> it uses the Non Progressive integrator, as it gives a better Noise
> Ratio
> (especially Glossy Reflections).
>
> I am open to suggestions/improvements.
>
> Best regards,
> Thomas
>
> --
> Thomas Dinges
> Blender Developer, Artist and Musician
>
> www.dingto.org <http://www.dingto.org>
>
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--
Thomas Dinges
Blender Developer, Artist and Musician
www.dingto.org
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