---
title: point-projection perspective
published: 2024-06-23T07:28:48+0100
---

<p class="notice">This is a technique used to represent 3d objects on 2d surfaces in a way that approximates human vision. It relies on the fact that objects become N times smaller as they get N times further from the eye.</p>

<section>
- [Horizon line]
- [Vanishing point]
    - [1 point]
    - [2 points]
</section>

<section>
## Horizon line
![Roughly where the sky meets the land](/images/perspective-horizon.jpg)
</section>

<section>
## Vanishing point
A [vanishing point] is a place on the image where perspective projections of parallel lines in 3d space converge. On flat planes, vanishing points will always lie on the [horizon line]. Traditionally, illustrations will use 1-3 vanishing points.

### 1 point
![](/images/perspective-single-point.jpg)

### 2 points
![](/images/perspective-double-point.jpg)

</section>