Currently, Rhino is in something like a NURBS-crisis. Alias made a huge progress in the past 20 years, unlike Rhino’s main NURBS surfacing and control point editing tools that are nearly unchanged since Rhino 2 (with a few minor exceptions). The last few versions of Rhino focused more on non-NURBS s…

One more time to remind about the urgent need to implement non-destructive matching to G2 using the normal direction for the 3rd row of control points. This is just one of my old videos that I made 6 years ago, but the request was made much earlier in multiple topics… [Rhino 6 Advanced surf…

The _Dir command lets you swap U/V.

Hi @menno , as far as I know, the “Dir” command flips the normal direction. However, my request is about swapping the U with V, and vice version. They basically need to rotate to 90 degrees to swap with each other. With other words, if I have a long vertical surface whose U direction points to up a…

That would be useful, also to be able to stick persistent G0, G1, and G2 locators on arbitrary surface boundaries. A typical example below - you need G1 to the vertical tangency enforcement strip so you have G2 after mirroring (or a consistent draft angle in other cases), while you need G2 on the op…

Dir | Rhino 3-D modeling The Dir command displays and edits an object's normal direction. @Rhino_Bulgaria Check the “single surface options” section.

[image] Bobi: as far as I know, the “Dir” command flips the normal direction. You are thinking of the Flip command, which only reverses the normal direciton. Flip | Rhino 3-D modeling The Flip command reverses the normal direction of a curve or surface. …

I figured out where is the issue (and partially my mistake, as I see the red and green UV isocurves as the same colour since I’m colour-blind). While Rhino 9 WIP changes the tiny arrows, the preview does not change the newly introduced large UV indicators at the corner of the edited surface when the…

No, the confusion comes from the fact that upon activating the ! _Dir command a mouse click on the selected surface changes its normal direction (the tiny white arrows). This is the primary function chosen by the developers. Swapping the UV is a secondary option in this command placed on the Command…

[image] Bobi: Other confusion that I notice in the latest WIP is that when I activate the ! _ShowDir tool, the buttons on the pop-up panel are inactive (grayed-out). I’m forced to de-select the surface by clicking on a blank area in the viewport, then select it again to make the buttons clickabl…

[image] Bobi: While Rhino 9 WIP changes the tiny arrows, the preview does not change the newly introduced large UV indicators at the corner of the edited surface when the control points are visible. Bug reported in a new thread: Dir Bug in V9 WIP

Rhino urgently needs these tools!

Rhino

davidcockey (David Cockey) June 14, 2026, 9:22pm 140

Bug reported in a new thread: Dir Bug in V9 WIP

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Rhino urgently needs these tools!

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