Help with reducing compilation speed for this model
I am trying to create a model of a Helicone
(http://beyond123.com/pa/helicone.html). It is made up of simple shapes with
a few differences and unions. It takes 22 minutes on my desktop to compile.
I've certainly had renders take much longer, but not for what should be a
fairly simple object. Might anyone have some insight as to what is causing
it to choke, and potentially how to speed things up?
https://www.dropbox.com/s/jipez0ov80sjixn/helicone.scad?dl=0
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It's the rotate_extrudes being done inside the loop. RE's are a real pain
to render.
On Tue, Jul 11, 2017 at 4:13 PM, jsc jsc@alum.mit.edu wrote:
I am trying to create a model of a Helicone
(http://beyond123.com/pa/helicone.html). It is made up of simple shapes
with
a few differences and unions. It takes 22 minutes on my desktop to compile.
I've certainly had renders take much longer, but not for what should be a
fairly simple object. Might anyone have some insight as to what is causing
it to choke, and potentially how to speed things up?
https://www.dropbox.com/s/jipez0ov80sjixn/helicone.scad?dl=0
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Help-with-reducing-compilation-speed-for-this-model-tp21803.html
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commenting out line 19: "$fs = 0.5;" reduced the render time to 5 minutes
on a good/slightly dated gaming desktop.
On Tue, Jul 11, 2017 at 4:27 PM, Ari Diacou ari.diacou@gmail.com wrote:
It's the rotate_extrudes being done inside the loop. RE's are a real pain
to render.
On Tue, Jul 11, 2017 at 4:13 PM, jsc jsc@alum.mit.edu wrote:
I am trying to create a model of a Helicone
(http://beyond123.com/pa/helicone.html). It is made up of simple shapes
with
a few differences and unions. It takes 22 minutes on my desktop to
compile.
I've certainly had renders take much longer, but not for what should be a
fairly simple object. Might anyone have some insight as to what is causing
it to choke, and potentially how to speed things up?
https://www.dropbox.com/s/jipez0ov80sjixn/helicone.scad?dl=0
--
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-with-reducing-compilation-speed-for-this-model-tp21803.html
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OpenSCAD is not very fast when it comes to unions with a large number of
objects having a large number of vertices.
As you will have print to the slices one by one, why not also render the
slices one by one?
jsc wrote
I am trying to create a model of a Helicone
(http://beyond123.com/pa/helicone.html). It is made up of simple shapes
with a few differences and unions. It takes 22 minutes on my desktop to
compile. I've certainly had renders take much longer, but not for what
should be a fairly simple object. Might anyone have some insight as to
what is causing it to choke, and potentially how to speed things up?
https://www.dropbox.com/s/jipez0ov80sjixn/helicone.scad?dl=0
--
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drxenocide wrote
commenting out line 19: "$fs = 0.5;" reduced the render time to 5 minutes
on a good/slightly dated gaming desktop.
Yes, I can turn down the fidelity to view, and compile a slice at a time
when I go to use it. It just surprised me that a model that doesn't use
anything fancy in terms of minkowski would take so long.
drxenocide wrote
It's the rotate_extrudes being done inside the loop. RE's are a real pain
to render.
Removing the pin slot code and the $fs setting lowered the compile down to
1:40, which is still way more than what I would have expected for just a
bunch of cylinders and flat extrusions.
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On 2017-07-11 23:03, jsc wrote:
Yes, I can turn down the fidelity to view, and compile a slice at a time
when I go to use it.
I have a block of code like this at the top of every file. I then have
OnPlate false when working on an object and set it true from the command
line when also setting other variables to select a slice of the object
to "plate up". This then slices it and rotates/translates to get the
right print orientation.
ViewDetail = "m";
PrintDetail = "h";
ViewFN = 60;
PrintFN = 120;
ViewFA = 360/ViewFN;
PrintFA= 360/PrintFN;
ViewFS = 0.5;
PrintFS = 0.1;
fn = OnPlate == true ? PrintFN : ViewFN; // Note not $fn - used
by some code for loop steps etc.
$fs = OnPlate == true ? PrintFS : ViewFS;
$fa = OnPlate == true ? PrintFA : ViewFA;
$detail = OnPlate == true ? PrintDetail : ViewDetail; // Allow
detail to be disabled to speed things up during development
$OnPlate = OnPlate;