There’s been a long running request for better indicators of the U and V directions on a surface. In the Rhino WIP we’ve made it so when control points are turned on for surfaces (F10), we draw two arrows near the origin (0,0) control point. These arrows indicate the U and V directions of the surfa…

Finally. These were requested for so long. I remember asking for these since the Rhino 5 and Rhino 6 times. I hope that the X/Y direction indicators will also show while running any command that’s related to them, such like “Rebuild”, “Rebuild UV”, “Direction”, “Change degree” etc

thanks @Joshua_Kennedy it’s very nice addition please allow a way to change/adjust the length of the indicators arrow. they are very/too long ATM

[image] Rhino_Bulgaria: . I hope that the X/Y direction indicators will also show while running any command that’s related to them, such like “Rebuild”, In that case, please also add a short arrow in the normal direction (W) so we can check if they are reversed.

[image] AlanMattano: And having dots color? I was thinking about this couple days ago thank you for bringing it up!

[image] CADARTZ: I was thinking about this couple days ago Great progress here. This kind of visual indicator opens the door to faster interaction methods—Gumball-style flip handles, small circular icons for U/V/W reversal, and quick visual feedback when flipping. Add auto-detection of incons…

That’s a great development! And please, add a color, or other indication when the weight of a control point doesn’t have a value of ‘1’. After all, the rational part of the NURBS abbreviation is the ability to control the weight. As I am not a fan of adjusting the weight and add more control poin…

Either use a different colour, or render square control points when the weight is not the default value of 1, and round control points if the value is 1. However, that may cause a confusion with the control points of surfaces and arcs of degree 2, because their default point weight is some random v…

@Gerard @Rhino_Bulgaria These appear to request a separate function than the surface direction indicators. Perhaps a topic for a new thread. A visual indicator of where control points have weights other than 1, including revolved surfaces, would be very useful when selecting the degree and number o…

Yes, a dedicated topic regarding the indication of control point weight would be welcome. Perhaps these should be classified as “default” and “modified” rather than “default” and “other than a value of 1”, in order to avoid the misleading indication for the control point weight of degree 2 arcs and …

Rhino WIP Feature: Surface Direction Indicators

Serengeti (Rhino WIP)

Joshua_Kennedy (Joshua Kennedy) December 10, 2025, 11:18am 18

Let us know what you think of this. If the change is welcome we’ll start wiring up some additional display options for styles other than this diamond shape.

Point Display Type

Topic		Replies	Views
Feature request: Appearance adjustments for U and V selected control point indicators Serengeti (Rhino WIP)	14	1082	November 19, 2025
Wish: Tune up MoveUVN Serengeti (Rhino WIP)	35	2037	March 4, 2025
Bug? Surface UV direction showing when selecting control point(s) on srf Rhino windows	8	130	November 7, 2024
Red lines appear at surface edge when control points are selected? Rhino for Windows windows	1	667	March 16, 2022
UV Indicators Rhino for Windows windows , wish	71	4041	November 19, 2025

Rhino WIP Feature: Surface Direction Indicators

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