What workflow and settings for FAST saves with meshes?

Hi,
V8
What please are the exact steps
1.
2.
3.
4.
etc
to take to avoid each save taking 50 secs, when working with a mesh that has high detail real life raster image mapped to it of the actual item, from Agisoft Photogrammetry.

I have in the past been told bring it in as a BlockInstance

But then I couldn’t get the image mapped to it.

Such Block Instances never play ball with me, I can’t change their colours, or map images to them.
Is there a best way to keep image, I need that image !

But this is a VERY IMPORTANT project, it cost me my spine.

I am also attempting to use V8 yet again, and get dims all ok, at 1:1 scale ! with text gaps as entered.

I bought V8 to be able to work with meshes. To give me SPEED. with them, if Rhino is at all capable of doing so now.

What else can I do to have saves in seconds, and where exactly are the settings to do so,

Scared stiff.

Steve

If the mesh isn’t changing you could maybe put it in another file and load it in a worksession. That way, you only save the file you’re working with and not the reference mesh.

Also, saving will be faster when you turn off compression during saving at the expense of larger files. I think it also applies to meshes.

  1. Tools > Options > Advanced
  2. Search for UseCompressionWhenSaving
  3. Set its value to False.

edited: I accidentally suggested to set to True, should be False.

You can also switch this one to True in Advanced Options for more speed:
WriteLocalTempFileWhenSaving

1 Like
  • Attached geometry cannot be edited (for example, Move, Scale), but it can be used for input to creation commands (for example, Copy, ExtrudeCrv).
  • When a worksession object is dragged, it snaps back into place.

Oh Drat, I do move them around

@nathanletwory
I will definitely turn that off.

but that sounds like turning it on ?

Will do that.

compression was false.
localTempFile was already true

have left these ‘as is’ pending clarification over killing compression setting.

Steve

Ah yes, sorry, set to False. Not sure why I wrote True. I have edited that reply.

Hi, Ok,
However very worrying difference it makes.
I had a simple file no curves, no objects, no meshes, nothing, except some test dims for V5 into V8
V5
61kb.
V8 2.2 megabytes !!!
Small Objects - Inches 1to1 scale for V5 dim styles this made in V5 opened in V8 given NoStack UseCompSaveFalse.3dm (2.2 MB)
Small Objects - Inches 1to1 scale for V5 dim styles this made in V5 opened in V8 given NoStack UseCompSaveTrue.3dm (101.5 KB)
Small Objects - Inches 1to1 scale for V5 dim styles this made in V5.3dm (61.4 KB)

V5 2.7% of the V8 file size.
what thats going to be when on a project I hate to think.
setting it to true again it became 102Kb, still higher than v5 but a lot lot better.

I think setting it to False will mean PC meltdown, just to try and speed up the save time from 50 secs.
so nothing gained at all.
when in Agisoft saving the very same mesh takes seconds.

I am worried that RHINO JUST ISNT CAPABLE OF WORKING ON MESHES. and that has been my workflow I am heading to.

@Holo
Holomark tests are passed, and I have a new PC built with latest everything to be a Rhino mesh workstation.

Just what is wrong with Rhino and saves ?

Steve

Your method for testing and your conclusion are not particularly scientifically rigorous.

Did you try a file with more objects to see if all Rhino 8 files without compression are really 36 times as big as the equivalent Rhino 5 files? Apparently not.

You can save a blank Rhino 8 file with nothing at all in it and it will be 2-3Mb (which is actually tiny in today’s terms). Why? Because Rhino 8 saves a hi-resolution screenshot of the file to use as the tile for the preview in file explorer. That’s what takes up most of the 2 point something Mb. If you start adding more objects and comparing file sizes, you will see your percent comparison does not hold. Possibly V8 files will be a bit bigger, there are more kinds of elements to be stored. But not WAY bigger.

In V5 I made 1000 shaded (jagged and faster) 10mm spheres. Saved the file - took somewhere around a minute (didn’t time it precisely) and the file size is 205Mb. Opened the file in V8 and saved again as a V8 file with no compression. It took about 5 seconds to save - file size 538 Mb, so say 2.5 times as big. Turned on compression and saved again. Took also maybe around a minute, about the same time as V5, but I didn’t time it precisely. File size 205Mb again.

So, turning off file compression will more than double the file size, yes. Might be a problem if your compressed file sizes are getting up to 500Mb or more. But for that you trade being able to save a file more than 10 times faster. For large files that will really make a huge difference.

Hi,
V5 61kb
V8 comp off 2.2Mb
V8 comp on 202kb.
yes I am fearing an issue if a simple non object no curves few dims goes from 61KB to 2.2Mb
Icorrect I must not assume that all V8 saves will go so massive.
But going by a gut instinct here.

I will report back on what other projects I have and their files sizes V5 and V8, a scientific test.
When I get 5 mins.
managed NOTHING creative today at all. battling with v8 dims, dark meshes. and driver updates.

Cheers

Steve

You may want to check also _Audit3dm or _Audit3dmFile and compare the results for those between the files.

Hi,
@nathanletwory
@Helvetosaur
Interesting tests so far, will reveal results tomorrow,
but before I can, where is Tools>Options>advanced in V5 so as to turn off compression for saves there ?
Cheers
Steve

You can’t (as far as I know). That option did not exist in V5.

OMG
Just how do I stop compression as 2mins per save is going to take forever.
Steve

Scroll up

But I cant see that in V5
Steve

Hi Steve -

That’s correct. As Mitch wrote, that didn’t exist in Rhino 5.
-wim

Menno raised my hopes there though I knew it didnt exist.
Steve

Sorry I did not know you were referring to v5. Reading back I now see the discussion was centred around v5 already, and I missed that.

When I work on very large filzes above 1-2 GB in size, I save a copy on my SSD and that speeds up the saving tremendously. For storage I save the final file on my HDD.

Hi,
new powerful PC built for Rhino and video editing, 64Mb DDR4 Corsair Vengeance pro
all SSD internals and a Nvidia GeForce RTX3070 card. (not a Ti), lots of memory on it.
AMD Ryzen 7 5700X 8 core 3401 MHz 8 cores 16 Lofical Processors
B550 Pro4 Mbd
Win10 pro 64bit

I wanted quick and I am getting slow. My gut feeling is Rhino and meshes :frowning:

Steve