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author | kitty piapiac <kcp@bsd.computer> | 2024-10-03 06:13:41 +0100 |
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committer | kitty piapiac <kcp@bsd.computer> | 2024-10-03 06:13:41 +0100 |
commit | 69a6187804aff44f48fe9047895e8c027ad5bf3f (patch) | |
tree | 9ca02720f3ed94512b77e490fadf62969842e544 /notes/perspective.md |
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diff --git a/notes/perspective.md b/notes/perspective.md new file mode 100644 index 0000000..fc492f8 --- /dev/null +++ b/notes/perspective.md @@ -0,0 +1,30 @@ +--- +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> |