Why am I rendering faster than others?

xberk wrote on 8/20/2007, 1:43 PM

In prep for building a new box, I've been doing John Cline's rendertest
http://www.johncline.com/rendertest-hdv.veg
on my laptop which is a Core 2 duo T7200 2ghz (hp9000) with 2 gig ram.
My times have been around 2 min 45 sec.
But I see times of nearly double this on the same spec machine --
see: http://www.sonycreativesoftware.com/forums/ShowMessage.asp?ForumID=4&MessageID=540649

I'd like to understand why the better times.
One issue was the dynamic ram preview setting with a recommended setting of 256 or better to reduce rendering times. What I've noticed is that a setting of zero does nearly double render times -- but a setting of anything above zero (even 1) brings the times back to that 2:45 range I"ve been getting.

Anyone have a clue as why my times I so much better than others?

Comments

GregFlowers wrote on 8/20/2007, 2:09 PM

Are you rendering with the "Good" or "Best" setting. I think you are supposed to render using the "Best" setting if you aren't already.

Dan Sherman wrote on 8/20/2007, 2:24 PM

I would say you never need to use "Best" setting when rendering.

GregFlowers wrote on 8/20/2007, 2:41 PM

But he is trying to compare his results on the rendertest to other's results on the rendertest and he needs to know if they used "Good" or "Best".

There are times when you should use the "Best" setting. You should use the "Best" setting if you are rendering from one resolution to a different resolution (hdv to dv for example.)

blink3times wrote on 8/20/2007, 4:05 PM

"Are you rendering with the "Good" or "Best" setting. I think you are supposed to render using the "Best" setting if you aren't already."
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Yes... BEST is the setting you want when doing the render test. There is a pretty large time difference between BEST and GOOD.

xberk wrote on 8/21/2007, 9:48 AM

I was using "best" for the quality setting -- that's the default. But I found the problem.
I was using the overall "default" template instead of the default MPEG2 "HDV 1080-60i" template. This makes a huge difference as I was not rendering to HD.

Re-ran the test and came out at 5min:30 with dynamic ram preview set to 1
and 5min:37 with dynamic ram preview set to 256 .. threads set to 4 on both.

I thought I read somewhere that in the case of HD the video card does make a difference in rendering speed.