Integrating 3D models with photography
Interested in integrating your 3D work with the real world? This might help
# 1 15-06-2009 , 09:39 AM
Chirone's Avatar
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Join Date: Dec 2007
Location: NZ
Posts: 3,125

ZB woes

weird things happen... shown in the attached picture. the left is zb, the right is maya with two sided shading turned off, so you can see none of the faces are black so none of the normals are going into the mesh (also comfirmed by toggling show > polygons > normals

i export out the obj and import it to zb using default export options

the mesh has been cleared of history,
the normals are facing outwards
the transformations are frozen

when i import to zb it gets inverted as if the normals are reveresed
so i try reverse the normals, export, then import back into zb
the same result... it still looks like it's got reversed normals

if i export this with other pieces of geometry with fewer polygons those objects get inverted too, yet if they are imported by themselves they turn out fine

if i export this with another piece of geometry one that's got more triangles it gets corrected

if i select a whole lot of faces in this piece of geometry and reverse the normals (so that a few have inverted normals) then it imports correctly...

all the other pieces of geometry show up correctly in zb, even the ones made in a similar fasion as this...

any idea what's happening?

Attached Thumbnails



that's a "Ch" pronounced as a "K"

Computer skills I should have:
Objective C, C#, Java, MEL. Python, C++, XML, JavaScript, XSLT, HTML, SQL, CSS, FXScript, Clips, SOAR, ActionScript, OpenGL, DirectX
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D
# 2 15-06-2009 , 09:53 AM
Jay's Avatar
Lead Modeler - Framestore
Join Date: Feb 2003
Location: UK
Posts: 6,287
just keep double sided on in Maya before you export.

the option is there in zb to have double sided or flipped on in the display options menu....dont worry nothing is wrong its just different software opposing each other....it could be worse....


Jay

# 3 15-06-2009 , 11:12 AM
Chirone's Avatar
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Join Date: Dec 2007
Location: NZ
Posts: 3,125
ah i see the settings in zb

and in maya the render stats?

thanks Jay




that's a "Ch" pronounced as a "K"

Computer skills I should have:
Objective C, C#, Java, MEL. Python, C++, XML, JavaScript, XSLT, HTML, SQL, CSS, FXScript, Clips, SOAR, ActionScript, OpenGL, DirectX
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D
# 4 15-06-2009 , 12:13 PM
Jay's Avatar
Lead Modeler - Framestore
Join Date: Feb 2003
Location: UK
Posts: 6,287
Cool mate you got it

Jay

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