id author title date pages extension mime words sentences flesch summary cache txt cord-133894-wsnyq01s Arora, Rahul Mid-Air Drawing of Curves on 3D Surfaces in AR/VR 2020-09-18 .txt text/plain 12032 726 65 Stroke projection using a 2D interface is typically WYSIWYG: 2D points along a user stroke (a, inset) are ray-cast through the given view to create corresponding 3D curve points on the surface of 3D scene objects (a). e user-intended projection of a mid-air stroke ( ยง 3) as a result is complex, in uenced by the ever-changing 3D relationship between the view, drawing controller and virtual object. Our most promising and novel approach anchored-smooth-closest-point (also called mimicry), captures the natural tendency of a user stroke to mimic the shape of the desired projected curve. Anchored projection captures our observation that the mid-air user stroke tends to mimic the shape of their intended curve on surface. While users to do not adhere consciously to any precise geometric formulation of mimicry, we observe that users o en draw the intended projected curve as a corresponding stroke on an imagined o set or translated surface (Figure 7) . ./cache/cord-133894-wsnyq01s.txt ./txt/cord-133894-wsnyq01s.txt