---
title: Weighted Control Points
description: Adjust control point influence in Gravity Sketch to regulate curve tension and line thickness, giving you precise control over SubD geometry.
---

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# Weighted Control Points

With this feature, you can manipulate the curve influence of single or multiple control points over the geometry of the object. This way you can regulate the tension of curvatures in the geometry.  

<iframe height="315" src="https://www.youtube-nocookie.com/embed/0kTYjb93pEg" style="margin: 10px auto; display: block; clear: both;" width="560" data-hsprotectframeborder="0" data-hsprotectallowfullscreen=""></iframe>

---

#### Access and Use

1. **[Grab](https://gravitysketch.zendesk.com/hc/en-us/articles/5912669405213)** the surface and press the blue Menu button to switch to Edit mode
2. Grab a point or multiple points with the grab sphere
3. **Toggle the thumbstick on your drawing hand UP and DOWN** to tighten or loosen the tension in the geometry (the square control point is the sharpest and the clover control point is the weakest)
4. **Toggle the thumbstick RIGHT and LEFT** to increase and decrease the thickness in sketch lines

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