The 3D ACIS® Modeler (ACIS) is Spatial’s prominent 3D solid modeling engine. 3D InterOp is a CAD data translation framework (Interoperability)

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Offsetting	Offsetting - ACIS Options	Offsetting - Scheme Extensions
Orphaned articles	Part - ACIS Options	Part - Scheme Extensions
Precise Hidden Line Removal V5	Precise Hidden Line Removal V5 - Scheme Extensions	Products
Registration	Release Status	Remove Faces
Remove Faces - ACIS Options	Remove Faces - Scheme Extensions	Rendering Base - ACIS Options
Rendering Base - Scheme Extensions	Repair Body Intersections	Repair Body Intersections - ACIS Options
Repair Body Intersections - Scheme Extensions	Scheme Data Types	Scheme Extensions
Scheme Snippets	Scheme Support - ACIS Options	Scheme Support - Scheme Extensions
Selective Booleans - Scheme Extensions	Shelling	Shelling - Scheme Extensions
Skinning	Skinning - Scheme Extensions	Space Warping - ACIS Options
Space Warping - Scheme Extensions	Springback	Springback - Scheme Extensions
Stitching	Stitching - Scheme Extensions	Suites
Surfaces	Surfacing	Sweeping
Sweeping - Scheme Extensions	System	Templates
Tolerance Variables and Units	Topology	Tutorials
Tweak	Warping