Re: pm3d question

[Petr M. <mi...@ph...>]

>> OK. Yes, I see the same difference in speed with isosamples set to 40. 
>> Although you can get a factor of roughly 4X back again by enabling 
>> HIDDEN3D_QUADTREE.
>
> At high isosamples settings, you should absolutely use that switch.
> I've even been thinking about enabling it by default.

Unfortunately it is a compile-time switch.
If it works, and gives good results, then make it as default.

> The only real alternative would be to a full-featured, object-precision 3D 
> rendering engine to replace both pm3d (polygons) and hidden3d (wireframe) 
> output.  Such a beast would probably be even slower than hidden3d already is.

Do we really want (need) a full virtual reality engine in gnuplot?

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PM