---
title: Prism
order: 5
---

A regular prism of 3, 5, 6 or 8 sides. The side edges and the rims round separately, as on an [Oblong](oblong.md).

![Prism](../../assets/prism.webp)

## Settings

![the SDF panel of a Prism](../../assets/sdf-panel-prism.webp)

| Setting | Default | Range | What it does |
|---|---|---|---|
| **Sides** | `3` | 3 · 5 · 6 · 8 | The number of sides |
| **Angle** *(3 sides)* | `60°` | 5° – 175° | The apex angle of a triangular prism. The arrow beside it opens **Set Prism Shape** |
| **Bevel Profile** | *Round* | *Round* · *Sharp* · *Soft* · *Tight* · *Chamfer* | The shape of the side edges' rounding |
| **Bevel** | `0` | ≥ 0 (soft 2) | Rounds the side edges |
| **Bevel Smooth** *(Chamfer)* | `0` | ≥ 0 (soft 0.5) | Rounds the seams where the side edges' chamfer meets the faces |
| **Profile** | *Round* | *Round* · *Sharp* · *Soft* · *Tight* · *Chamfer* | *Cap Rounding*: the shape of the rims' rounding |
| **Rounding** | `0` | ≥ 0 (soft 2) | *Cap Rounding*: rounds the top and bottom rims |
| **Smooth** *(Chamfer)* | `0` | ≥ 0 (soft 0.5) | Rounds the seams where the rims' chamfer meets the faces |

The rows every shape has are in [Properties Panels](../../interface/panels.md#rows-every-shape-has).

## Sides

The `Q` pie's West wedge and the right-click menu's first row have **3**, **5**, **6** and **8** as buttons.

![Q, 8, then Q, 3](../../assets/prism-sides.webp)

## Angle

**Set Prism Shape** sets a triangular prism's proportions:

| Setting | What it does |
|---|---|
| **Mode** | *Angle + Height*: you set the angle and the height, the base follows. *Height + Base*: you set both, the angle follows |
| **Angle** | The apex angle, 5° – 175° |
| **Height** | From the apex to the base |
| **Base** | The width of the base |

## Bevel and Rounding

Drag the green Bevel arc of the [adjust arcs](../../interface/gizmos.md#adjust-arcs) to change **Bevel**, and the Rounding arc (or press `B`) to change the rims' **Rounding**. During either drag `1`–`5` pick the profile.

## Redo panel

After adding, the redo panel (`F9`) has:

| Setting | Default | Range | What it does |
|---|---|---|---|
| **Size** | `2` | > 0 | Width of the new prism |
| **Sides** | `3` | 3, 5, 6 or 8 | Number of sides |
| **Angle** | `60` | 5 – 175 | Apex angle, three sides only |
| **Align** | *World* | *World* · *View* · *3D Cursor* | Rotation of the new shape |

## See also

- [Ngon](ngon.md): any polygon
- [Cylinder](cylinder.md)