topic Re: Large site/mesh w/ SEO road...sooooo slow in Modeling

Large site/mesh w/ SEO road...sooooo slow

Anonymous — Thu, 25 May 2023 14:34:09 GMT

I am working on a large site plan that is mainly contours and roads. The client wants to view it in 3D so I have created a mesh and SEO'ed the roads out. There are a few ponds which just sit on the mesh and minimal objects scattered throughout.
I only have three or four SEOs opperations, but this seems to be the step that slows things down to a snail's pace.
I had to recreate my mesh three times to get it to SEO with the roads before I stopped getting errors. Now that I have the SEOs working exactly how I want them to, the 3D view time takes FOREVER when ever I make a single change to anything that has a SEO operation used on it.
Example: I change the material of the road/slab and it will be 45 minutes of wait time to regen the 3D view.
Other models work fine on this computer. I have duel processors and am working in AC12. File size is only 5,500KB. I've tried it without any objects. I need to make lots of tweaks to the mesh to get the model where I need and can't afford to wait for this 3D lag time.
Any suggestions!
Is the area I'm trying to model just too large?
Do large SEO operations cause this kind of lag. Too many points?
Can I import the mesh or road and still have SEOs, and would this speed things up.

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Wed, 06 May 2009 22:14:54 GMT

This is the plan view. There are roughly 300 RV pads and two basic buildings.
This gives you an idea of the amount of intersections an SEO operation has to think about for the road/slab and mesh.

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Wed, 06 May 2009 22:42:17 GMT

Are you sure it's not the trees that are causing the slow-down? They have lots of polygons = calculation time.

If you do think it is the SEO's that are causing the problem, you could try saving the meshes out as objects and insert them as such. This would (maybe) mean that your machine doesn't have to think about the SEOperations, but just deals with the polygons created. Of course if you wanted to modify the meshes / roads you would have to update your objects.

HTH

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Wed, 06 May 2009 23:17:30 GMT

Love the direction your thinking..but I do need to edit the mesh.
And I have several versions...one without trees, and they don't seem to be the main culprit.

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Wed, 06 May 2009 23:53:44 GMT

I should have added "keep the original meshes on a layer that is always turned off, except when you want to edit / redefine them".

That's all I've got. Might be worth a crack.

Re: Large site/mesh w/ SEO road...sooooo slow

Karl Barker — Thu, 07 May 2009 21:31:56 GMT

You could try what we do.
The roads and foot paths are slabs that are sited above the mesh.
we then to a 'plan' render in lightworks.
This gives you a jpg file of the roading layout.
Next, create a new material with the render image to drape over the mesh.
his way, it is easy and quick to update (just re save the rendered image over the old one) and there is no calculation required for the SEO's.
This allows us to build up 3D models to fly around with our clients live over fairly big sites.

Cheers,
Karl.

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Fri, 08 May 2009 05:40:20 GMT

It doesn't look like a complicated site, except all polygontrees. Have you checked your hardware / software so you don't have something running in the background that slow down your computer?

Re: Large site/mesh w/ SEO road...sooooo slow

Dwight — Fri, 08 May 2009 06:37:33 GMT

Or take the engineering plan into an image editor, use the paint bucket to fill roads and lawns, use the stroke function to create curbs and sidewalks.

Now you've colored the site plan and can stretch it on the site mesh.

Done at 2 pixels per foot, that makes a curb a one pixel stroke.

Add noise to the lawn.

Re: Large site/mesh w/ SEO road...sooooo slow

Dwight — Fri, 08 May 2009 06:39:14 GMT

I agree with our Swedish colleague that the 3D trees are the problem.

Find balls on stix for this instead.....

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Fri, 08 May 2009 07:25:05 GMT

well, your model seems simple for taking so long.
I remember a case where i designed an urban area 10 times more complex with trees and buildings and everything everything.

when i applied an SOE on a mesh which had been also SEoperated then editing took forever.
I copied the ground and applied a SEO. Seemed that the problem was not the polygons but applying sequential SEO on a mesh.
just keep it in mind

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Fri, 08 May 2009 16:51:32 GMT

You could try what we do.
The roads and foot paths are slabs that are sited above the mesh.
we then to a 'plan' render in lightworks.
This gives you a jpg file of the roading layout.
Next, create a new material with the render image to drape over the mesh.

I think this may do the trick. I don't need to edit the location of the roads...just the contour. I'll give this a shot.

It doesn't look like a complicated site, except all polygontrees. Have you checked your hardware / software so you don't have something running in the background that slow down your computer?

Also...I just recently put the trees back into the site. I had deleted all large objects but this did not solve the problem...so I put them back in.
I've been playing with this site for weeks now, and I'm pretty convienced its just this site, because all other models seem to work fine and at a good speed.
Does any one have a "simple" tree made? I tried to create one with a column and sphere and saved as an object and I kept getting GDL script errors. So I borrowed a tree from the archicad library deposit that was slightly smaller than the default AC12 trees.

when i applied an SOE on a mesh which had been also SEoperated then editing took forever.
I copied the ground and applied a SEO. Seemed that the problem was not the polygons but applying sequential SEO on a mesh.
just keep it in mind

I think this is exactly what I'm experiencing!!!!
Think I'll try the first tip with importing an image of the roads on the mesh to eliminate my need for SEOs...and see how that works first. Cross your fingers!
And a "simple' tree would be great!

Thank you all for the suggestions! And feel free to post if you think of anything else.
Lindsay

Re: Large site/mesh w/ SEO road...sooooo slow

David Maudlin — Sat, 09 May 2009 12:43:17 GMT

Designr wrote:
Does any one have a "simple" tree made? I tried to create one with a column and sphere and saved as an object and I kept getting GDL script errors. So I borrowed a tree from the archicad library deposit that was slightly smaller than the default AC12 trees.

Lindsay:

I don't know why the method you used is giving errors, but you should be able to use Profiler (with the rotate option) to create a ball & stick tree. Or you could just group a column and sphere object (set the resolution of the sphere to a lower number to keep the polygon count down), and copy this grouping over the site. Your issue could be that there are elements that are both Target and Operator, which can be hard for ArchiCAD to parse.

David

Re: Large site/mesh w/ SEO road...sooooo slow

Richard Morrison — Sat, 09 May 2009 17:55:36 GMT

You might consider saving the site as a separate GDL object, which could be updated as needed.

Re: Large site/mesh w/ SEO road...sooooo slow

Anonymous — Mon, 11 May 2009 11:05:09 GMT

Designr wrote:
Does any one have a "simple" tree made? I tried to create one with a column and sphere and saved as an object and I kept getting GDL script errors. So I borrowed a tree from the archicad library deposit that was slightly smaller than the default AC12 trees.

And a "simple' tree would be great!

It is right there in the library - any AC deciduous tree with crown type elipsoid! There is also resolution parameter!