Gear is the most versatile stuff so far. Give it a try
Best Regards,
Stephen P. Davidson
(954) 552-7956
sdav...@3Danimationmagic.com
Any sufficiently advanced technology is indistinguishable from magic
- Arthur C. Clarke
All depends on what you want to do and what you want back as data.
You’ll want to stay away from .asm and .prt at these are Assembly and Part natively common to apps like Solidworks and Pro-E.
.Igs will give you surfaces. If you have Maya this is a reasonable choice as Maya will read this as NURBS surfaces where possible.
.stl will produce a reasonably good faceted file. But the application or converter you are going to needs to be able to read this.
.wrl is an older but reliable web based geometry format that is also faceted. It is highly compatible and readable but you may run the risk of losing groups or material ids. This tends to be a format for virtual environments or web use so exports are often tuned to low poly counts. If exported with a high tolerance(resolution) this can be very useful.
.3dxml is similar but newer and inside an xml wrapper, I think.
ACIS, Catia, and Parasolid are native cad formats, unless you have something to convert them with, I’d avoid them.
In general the list provided suggests to me that the user is strictly a CAD engineer with very little fundamental knowledge of what you do, how you do it, and why. Else he would not be suggesting some of these formats. This is quite common. Most CAD folks are very good at what they do and very knowledgeable about their software but they don’t often spend much time trying to reduce their data to usable information for 3D animation software. Which is ironic and odd given the similarities in the two professions, but still quite common.
A couple of things to be aware of. Solidworks is a solids modeling software capable of generating “watertight” geometry for stereo lithography output, engineering or other high end geometry construction. The geometries are constructed using primitives and other methods which produce “solids”, or geometry which has no gaps or seams in theory.
Solids can be converted to surfaces, but this can be a difficult and error prone process if the operator does not understand how the geometry is needed. This has more to do with the way solids models are broken down into UV surfaces than with the operator or engineers. We, as animators, use surfaces a very specific way and people who build solids models have little reference as to why.
Solids can produce extraordinarily high quality facet models, with geometry evenly distributed, no gaps or seams, and at an incredibly high facet tolerance. But the operator needs to be aware of what your requirements are when converting the geometry else you can end up with too little or way too much detail. A shrinkwrap and tolerance process is often used, depending on the software, to manage the export.
For these reasons you want, as much as possible, to have the CAD engineer convert this geometry to a usable format directly out of Solidworks. This is the point where you will get the most control over your export.
To my knowledge Solidworks can also export Rhino and DXF. I’d avoid DXF if at all possible.
A high rez STL or WRL will probably work well.
Same with Rhino, but IGS is known for being a somewhat volatile format depending on what exports it and what the importer is. Its kind of like OBJ, it can be written so many different ways that one companies export is only as good as someone else’s import.
I typically use Maya for CAD geometry import and send that to Soft. Maya has a lot of support for CAD via it’s DirectConnect plugin. It a really great way to go because it can read formats like Catia, UG, and PTC.
--
Joey Ponthieux
LaRC Information Technology Enhanced Services (LITES)
Mymic Technical Services
NASA Langley Research Center
__________________________________________________
Opinions stated here-in are strictly those of the author and do not
represent the opinions of NASA or any other party.
Thanks for all the kind words guys! If anyone has any questions or wants a trial of species drop Chris or myself an email and we will sort you out.
Not free, though I love Species, this is my daily tool:D
From: softimag...@listproc.autodesk.com [mailto:softimag...@listproc.autodesk.com] On Behalf Of Matt Morris
Sent: Tuesday, August 13, 2013 4:31 PM
To: soft...@listproc.autodesk.com
Persönlich haftende Gesellschafterin:
Brandstätter GmbH, Zirndorf
vertreten durch die Geschäftsführer
Horst Brandstätter, Steffen Höpfner, Andrea Schauer
Amtsgericht Fürth: HR B 766
Shareholder liable to unlimited extent:
Brandstaetter GmbH, Zirndorf
CEO: Horst Brandstaetter, Steffen Hoepfner, Andrea Schauer
Local Court Fuerth: HR B 766
I had this recently and found that either using Rhino or Maya for converting the Iges model to polys and then into Softimage was a viable solution. One thing was clear though - Maya supports the Nurbs surfaces in the Iges file properly so rendres out of Maya didn't suffer from the discontinuities and little gaps between odd polygonal surfaces which I had in Soft.
So please, Soft devs, consider better support for Nurbs!
Morten
So please, Soft devs, consider better support for Nurbs!
I had this recently and found that either using Rhino or Maya for converting the Iges model to polys and then into Softimage was a viable solution. One thing was clear though - Maya supports the Nurbs surfaces in the Iges file properly so rendres out of Maya didn't suffer from the discontinuities and little gaps between odd polygonal surfaces which I had in Soft.