[Sidefx-houdini-list] Hardware and rendering speeds

Mark Bolstad the.render.dude at gmail.com
Tue Jan 27 16:15:16 EST 2009


When you say "cut by a 1/3", I assume you mean faster, i.e., going from 90
sec to 60 sec.

What renderer are you using? Is it possible that it has offloaded some of
the processing to the GPU?

Mark


On Fri, Jan 23, 2009 at 9:52 AM, <gravatar at gravatonia.com> wrote:

> Hi all,
>   I have run across a curiosity and wonder if one of y'all might have an
> explanation.  I recently upgraded my Home PC where I do a lot of my set up
> work.
>  However, I also use it as a rendering station as well.   I first upgraded
> my
> processor from a Q6600 quad to one of the new I7 chips.  Incredible
> difference.
> Cut my render times by half or as much as two thirds depending on the
> scene.
> (The beastier the render, the better the improvement.  I also decided to
> upgrade
> the video card and did so a few days after I switched out the processor so
> that I
> could cobble together an extra machine to do editing with when the big
> thesis
> renders are going (all the time.)  I went from an old Nvidia 8800 GTS (384
> MB
> version) to a Radeon 4850 with a full gig of video memory.  When I started
> rendering again, I found an unexpected surprise.  My render times had been
> cut by
> almost 1/3 from before the video upgrade.  As far as I knew, video memory
> and GPU
> only effected open GL type real time render speeds, but not the sort of
> rendering
> I do, I was under the impression that if you had plenty of ram, it was all
> about
> the CPU to increase render speeds.  Any ideas?  I'm stumped.
>
> Grav
>
> p.s.  Yes I know a quadro or Fire GL is supposed to be better, but I am on
> the
> grad student budget.
>
> On Thu Jan 22 20:23 , Rangi Sutton <rangi at kanuka.com.au> sent:
>
> >Lucio Flores wrote:
> >> Thanks!!
> >>
> >> Is there an expression returning the dimensions of a houdini volume?
> >>
> >To get size (not res) isolate the volume prim into it's own SOP, then
> >use bbox()?
> >
> >r.
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