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HaiderOfSweden 
Newbie
Joined: 18.Oct.2011
Location: Sweden
Using: Revit, AutoCAD, 3dsMax, Rhino
Status: Offline
Points: 12
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 Topic: Question Surface face normal direction
Posted: 29.Aug.2017 at 20:34 |
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Thank you, Philippe :)
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philippe JOSEPH
Senior Member
Joined: 14.Mar.2011
Location: France
Using: AutoCAD Mechanical 2017
Status: Offline
Points: 1538
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Posted: 28.Aug.2017 at 07:16 |
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Hello HaiderOfSweden, very , very nice result.
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HaiderOfSweden
Newbie
Joined: 18.Oct.2011
Location: Sweden
Using: Revit, AutoCAD, 3dsMax, Rhino
Status: Offline
Points: 12
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Posted: 27.Aug.2017 at 21:58 |
Hello Philippe!
I render photorealistic stuff out of my AutoCAD models. The DWG you saw previously is the part to the right. You might wonder why I bother with this question if the surfaces are going to end up in 3dsMax anyway where I could flip the normals. But yet, I want to model a fault free model in AutoCAD so that I won't need to do extra adjustments afterwards in 3dsMax...
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philippe JOSEPH
Senior Member
Joined: 14.Mar.2011
Location: France
Using: AutoCAD Mechanical 2017
Status: Offline
Points: 1538
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Posted: 27.Aug.2017 at 21:07 |
Hello HaiderOfSweden, why can't you render ( and other things ) directly with AutoCAD ? You can render anyway with simple colors even if you don't affect a material to your solids. If you affect a material it can be smarter...
Edited by philippe JOSEPH - 27.Aug.2017 at 21:07
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HaiderOfSweden
Newbie
Joined: 18.Oct.2011
Location: Sweden
Using: Revit, AutoCAD, 3dsMax, Rhino
Status: Offline
Points: 12
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Posted: 26.Aug.2017 at 23:05 |
In case anyone else stumbles into this matter, I solved it by rebuilding the surfaces. Planar surface can be exploded and output lines. A surface can be built from them with SURFNETWORK. After exploding the rounded corner, it can be rebuild with Loft with Guide Curves.
If we wanted a command similar to Rhinos FLIP, I think it has to be programmed in .NET or similar.
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HaiderOfSweden
Newbie
Joined: 18.Oct.2011
Location: Sweden
Using: Revit, AutoCAD, 3dsMax, Rhino
Status: Offline
Points: 12
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Posted: 02.Mar.2017 at 14:09 |
Did anyone have the time to check the attached file?
I didn't manage to explode to a 3D face, it rather turned into something else.
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HaiderOfSweden
Newbie
Joined: 18.Oct.2011
Location: Sweden
Using: Revit, AutoCAD, 3dsMax, Rhino
Status: Offline
Points: 12
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Posted: 24.Feb.2017 at 10:41 |
 Vladimir Michl wrote:
You can explode more complex objects to 3D faces. |
Please have a look at this DWG https://www.dropbox.com/s/kv50hyq08zi0ayi/Surfaces.dwg?dl=0 (I don't know how to attach - if someone would please tell me how, I can attach the file here for future reference)
Colors: Green: Regular surfaces. Yellow: When I exploded the surfaces, they turned into regions, not 3d faces. Red: The problematic surfaces, ie need their faces to be flipped. I can see that the faces are flipped when I export this to 3dsMax.
See if it works for you and thank you in advance.
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Vladimir Michl
Senior Member
Joined: 26.Jul.2007
Location: Czech Republic
Using: Autodesk software
Status: Offline
Points: 2196
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Posted: 24.Feb.2017 at 09:11 |
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You can explode more complex objects to 3D faces.
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HaiderOfSweden
Newbie
Joined: 18.Oct.2011
Location: Sweden
Using: Revit, AutoCAD, 3dsMax, Rhino
Status: Offline
Points: 12
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Posted: 23.Feb.2017 at 15:37 |
John Connor wrote:
I think this can be accomplished in Inventor. Search on "reverse normal direction of translated face or body" for further information.
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Thanks. We don't have Inventor at the office just now, but maybe at some point. If it opens and saves DWG natively, this would be a acceptable detour to fix and then save and continue in AutoCAD. Otherwise, I could as well use 3dsMax to fix the normals, and re-export.
But I'll wait to hear if someone hopefully knows an AutoCAD way for solids/surfaces similar to the first suggestion that was for 3d faces.
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John Connor
Senior Member
Joined: 01.Feb.2011
Location: United States
Using: AutoCAD 2018
Status: Offline
Points: 7175
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Posted: 23.Feb.2017 at 14:52 |
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I think this can be accomplished in Inventor. Search on "reverse normal direction of translated face or body" for further information.
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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance." <<AutoCAD 2015>>
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