CAD tip # 4629:

Question

CAD

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Arcs imported from AutoCAD/ADT are displayed too roughly in VIZ/max.

Smoothing of arcs and curves loaded from AutoCAD are controlled by the AutoCAD variables - VIEWRES, FACETRES and FACETDEV.

VIEWRES controls how smoothly AutoCAD displays arcs - the higher the value the finer (and slower) arcs are displayed in AutoCAD.

FACETRES controls smoothed rendering of curved 3D objects. It is related to VIEWRES - value 1 means the same smoothness as in arcs (i.e. VIEWRES), 2 means 2x smoother display than arcs. The default value is 0.5, maximum value is 10.

FACETDEV (or AECFACETDEV in older ADT versions) controls the rendering of facetted 3D objects.

Smoothing of 3D solids can be controled also in VIZ Render - through the setting: File > File Link Manager > Reload > Surface Deviation for 3D Solids.

Please note that smoother setting means also slower display. Segmentation can be also influenced by models too distant from the 0,0,0 origin point.

ACADADTVIZ

*CAD

12.9.2005 13378×

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applies to: AutoCAD · AutoCAD Architecture · VIZ ·

See also:
Tip 14095:	How to increase the accuracy (smoothness) of STL files exported from AutoCAD?
Tip 13559:	How to find the number of faces of a 3D mesh object in Fusion 360?
Tip 13013:	Converting a 3D mesh to a 3D solid in Fusion 360.
Tip 11806:	Higher precision for facetted round surfaces in STL export from Inventor.
Tip 11387:	How to edit large STL files in Fusion 360?

Selected tip: What for is the DBXBridge.exe process?

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