Viewport dragging lines are lazy, or better the viewport. Before you ask for SystemInfo: Rhino 9 SR0 2025-7-25 (Rhino WIP, 9.0.25206.00305, Git hash:master @ 26c85e7a8e7a85f2e06ba413c8b9b2251f06615a) License type: Commercial, build 2025-07-25 License details: Cloud Zoo Expires on: 2025-09…

are you seeing the same behavior if you go to tools>options>view> GPU and set it to Direct 3d? I see it in open gl here, but not D3d.

@stevebaer I can repro this in open gl, but not D3D (9.0.25206.12305, 2025-07-25) RH-88609 viewport artifact in open gl

Lazy viewport dragging lines

brian (Brian Gillespie) August 13, 2025, 3:39am 4

RH-88609 is fixed in Rhino WIP

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