KeyShot Forum

Technical discussions => General discussion => Topic started by: blueye89 on March 08, 2017, 11:32:42 PM

Title: Surface Overlapping problem in animation
Post by: blueye89 on March 08, 2017, 11:32:42 PM
Hello to all,
I need advice about problem showed on this rendered video. Is there a way to avoid surface overlapping during a fade out effect? I don't want to create a gap between the touching parts cause gap will be visible and that is not good.

Any help is very appreciated.

Danijel
Title: Re: Surface Overlapping problem in animation
Post by: INNEO_MWo on March 09, 2017, 12:49:28 AM
Are you sure that a tiny gap of 0,001 will be visible in the animation?
And why do the front half of the part (that is fading out) need a surface to the section plane?
Title: Re: Surface Overlapping problem in animation
Post by: blueye89 on March 09, 2017, 01:43:53 AM
Quote from: MWo on March 09, 2017, 12:49:28 AM
Are you sure that a tiny gap of 0,001 will be visible in the animation?
And why do the front half of the part (that is fading out) need a surface to the section plane?

I am trying to find the solution with bet results, so I will try with your ideas.
Is it possible to delete face(s) via Keyshot or I have to edit in CAD and add to Keyshot scene?

Title: Re: Surface Overlapping problem in animation
Post by: Esben Oxholm on March 09, 2017, 02:34:50 AM
Quote from: blueye89 on March 09, 2017, 01:43:53 AM
Is it possible to delete face(s) via Keyshot or I have to edit in CAD and add to Keyshot scene?
You can separate a surface using the geometry editor and then delete it.
Here's a quick introduction to the geometry editor if you haven't used it before:
https://www.youtube.com/watch?v=N2IGoUPY90A&t=5s
Title: Re: Surface Overlapping problem in animation
Post by: INNEO_MWo on March 09, 2017, 02:43:04 AM
Quote from: blueye89 on March 09, 2017, 01:43:53 AM
Quote from: MWo on March 09, 2017, 12:49:28 AM
Are you sure that a tiny gap of 0,001 will be visible in the animation?
And why do the front half of the part (that is fading out) need a surface to the section plane?

I am trying to find the solution with bet results, so I will try with your ideas.
Is it possible to delete face(s) via Keyshot or I have to edit in CAD and add to Keyshot scene?

I would split the parts in CAD. It's almost easy and the right process chain.
Every action via geometry editor cuts the CAD files update option at re-import.

Which CAD tool do you use?
Title: Re: Surface Overlapping problem in animation
Post by: Esben Oxholm on March 09, 2017, 04:11:28 AM
Quote from: MWo on March 09, 2017, 02:43:04 AM
I would split the parts in CAD. It's almost easy and the right process chain.
Every action via geometry editor cuts the CAD files update option at re-import.
That is true and a very good point! The geometry editor can be handy though if you don't have direct access to the source file.
Title: Re: Surface Overlapping problem in animation
Post by: blueye89 on March 09, 2017, 03:06:26 PM
Hello to all,
Thank you very much on useful suggestions that you provided. I will try this "geometry editor" tool that you mentioned. I agree with you that the best way is to edit a model directly in CAD, but for the modeling I am using Autodesk Inventor. As you know, there is no plugin which will make my work easier on relation "Modify in CAD & Update model in Keyshot". Some assemblies that I am working on are pretty complex and exporting a .step or .iges can take a long time, so the best way is to update just "modified" geometry. That is the reason why I will probably choose "geometry editor" tool in Keyshot.
By the way, many thanks to @Esben Oxholm for the webinar videos on youtube. I watched many of them in the last few weeks and your techniques are awesome.
Title: Re: Surface Overlapping problem in animation
Post by: guest84672 on March 09, 2017, 03:56:31 PM
Why are you exporting an IGES or STEP file? You can import Inventor files natively into KeyShot on both Mac and PC. The lack of a plugin doesn't have anything to do with that.

And you can then always re-import the updated assembly, and select "update geometry".
Title: Re: Surface Overlapping problem in animation
Post by: blueye89 on March 09, 2017, 11:23:28 PM
Quote from: thomasteger on March 09, 2017, 03:56:31 PM
Why are you exporting an IGES or STEP file? You can import Inventor files natively into KeyShot on both Mac and PC. The lack of a plugin doesn't have anything to do with that.

And you can then always re-import the updated assembly, and select "update geometry".

I export IGES or STEP once I have realized that during a import .ipt (multibody part) some faces are missing. I am working as a tire tread designer, so faces are pretty complex. I have started then to export to .step or .iges and the design was imported successful without loosing geometry.
Title: Re: Surface Overlapping problem in animation
Post by: guest84672 on March 10, 2017, 06:23:47 AM
Can you share an example that exhibits the problem so we can fix it?
Title: Re: Surface Overlapping problem in animation
Post by: blueye89 on March 10, 2017, 03:51:51 PM
Quote from: thomasteger on March 10, 2017, 06:23:47 AM
Can you share an example that exhibits the problem so we can fix it?
I have recorded an video which shows an of the problem during a import .ipt model (one pitch of tread pattern) into Keyshot. Unfortunately, I can't provide a model cause this is still project that I am working on. I believe in the near future I will be able to share a 3D model of the tire.
Title: Re: Surface Overlapping problem in animation
Post by: guest84672 on March 10, 2017, 03:57:16 PM
Thanks for the info. I need the model so development can take a look.