Can't Render Code
Thanks Fred….now my machine feels even slower…:)..I’d love 15 seconds.
If I can get more cores working maybe that would get me closer to your times.
My task manager shows only a single core but it is maxed out during the render.
I’ll have to research this a bit, maybe it is a bug or a feature I need to turn on.
Or maybe it has to do with the video card, I am not sure how much computing is done where.
I am no where near Oculus standards, my video was never top of the line and is 4+ years ancient.
Darren
On Apr 12, 2016, at 2:55 PM, fred_dot_u fred_dot_u@yahoo.com wrote:
Obviously, I did not pay attention when I rendered the model. Doing so again,
after closing and re-opening the program and .scad file, it reads as 9 to 12
seconds. Pursuant to your message, I also checked the task manager (Win 7)
and four of the eight cores are "working" with traces not quite half way up
the graph. Old machine here too, an Intel i7 with only 12 GB system ram and
a decent video card, although not up to Oculus Rift standards!
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OpenScad currently never uses more than one core. The speed of your
graphics card only affects the F5 preview, not the F6 time.
On 12 April 2016 at 23:39, Darren DeVecchio macdarren@mac.com wrote:
Thanks Fred….now my machine feels even slower…:)..I’d love 15 seconds.
If I can get more cores working maybe that would get me closer to your
times.
My task manager shows only a single core but it is maxed out during the
render.
I’ll have to research this a bit, maybe it is a bug or a feature I need to
turn on.
Or maybe it has to do with the video card, I am not sure how much
computing is done where.
I am no where near Oculus standards, my video was never top of the line
and is 4+ years ancient.
Darren
On Apr 12, 2016, at 2:55 PM, fred_dot_u fred_dot_u@yahoo.com wrote:
Obviously, I did not pay attention when I rendered the model. Doing so
again,
after closing and re-opening the program and .scad file, it reads as 9
to 12
seconds. Pursuant to your message, I also checked the task manager (Win
and four of the eight cores are "working" with traces not quite half way
up
the graph. Old machine here too, an Intel i7 with only 12 GB system ram
and
a decent video card, although not up to Oculus Rift standards!
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interesting…my previews are reasonably fast, it is the F6 render that is slow…and from what was said graphics card should not matter…
I wonder why I get slow render times…a freshly loaded app, with the model from the OP F5s in <1 second.
Renders take 40+ seconds…if it is mostly a CPU thing then maybe my slower clocked older CPU architecture is the issue.
For completeness I just rebooted and tried the render again and this time I had the INTEL Power Gadget open to see if maybe
the clock was running slow or not ‘Turbo Boosting’ but it jumps to the boosted clock rate of about 3Ghz when rendering, but it does
start at the lower “inactive" rate for the first second…it was somewhat faster than my previous runs down to about 40 seconds.
Probably just time for a newer machine..if I really can’t wait all those seconds..but I am mostly a beginner and do simple models
along the lines of the OP so that short wait is not that big of a deal and I usually review the code and find a way to tweak it while I wait.
On Apr 12, 2016, at 4:00 PM, Darren DeVecchio macdarren@mac.com wrote:
interesting…my previews are reasonably fast, it is the F6 render that is slow…and from what was said graphics card should not matter…
I wonder why I get slow render times…a freshly loaded app, with the model from the OP F5s in <1 second.
Renders take 40+ seconds…if it is mostly a CPU thing then maybe my slower clocked older CPU architecture is the issue.
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macdarren wrote
Probably just time for a newer machine..if I really can’t wait all those
seconds..but I am mostly a beginner and do simple models
along the lines of the OP so that short wait is not that big of a deal and
I usually review the code and find a way to tweak it while I wait.
I recalled when I started learning OpenSCAD, I read a thread discussing
rendering time, in which people were talking about 15~20 hr time scale (they
went to bed and the next day it still running) and said that it's worth it.
Up to now I am still wondering if I read something wrong, but I guess that's
why we need preview.
Btw, putting a render(){ your-object } where your-object is the one that you
already made (thus the OpenSCAD will use the cach) might help.
$ Runsun Pan, PhD $ libs: doctest , faces ( git ), offline doc ( git ), runscad.py( 1 , 2 , git ), synwrite( 1 , 2 ); $ tips: hash( 1 , 2 ), matrix( 1 , 2 ),sweep( 1 , 2 ), var( 1 , 2 ), lerp , animation ( gif , prodVid ), precision( 1 , 2 ), xl-control , type , rounded polygon , chfont , tailRecur ( 2, 3 ), isosphere , area
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On Apr 12, 2016, at 10:04 AM, Entropic farnworthpatrick@gmail.com wrote:
Thank you so much for your help, I can finish the project now. I wonder why
my computer wouldn't do it. Thanks.
My guess is that you’re using an old version of OpenSCAD. The latest is 2015.03-2.
-Marius
Just for the record...
On my humble 11 year old 2 core 4Gb machine it took 29 secs to render. I'm
using OpenSCAD version 2016.01.26 on Windows 7 X64.
Maybe changing power management parameters of your machine may help a
little. With an utility called Prio is possible to assign a core to an app
and permanently assign priorities, maybe you can use it to liberate a core
to more efficiently run OpenSCAD.
jpmendes
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runsun wrote
I recalled when I started learning OpenSCAD, I read a thread discussing
rendering time, in which people were talking about 15~20 hr time scale
(they went to bed and the next day it still running) and said that it's
worth it. Up to now I am still wondering if I read something wrong, but I
guess that's why we need preview.
I've had > 24 hour renders. Usually accompanied by disc swapping for models
using a lot of memory, which slows down the process.
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