Fix more dead links

art/bathing.json

@@ -7,7 +7,6 @@
     "description": "Looks like it's a great time for a hot bath!\n\nI thought this was going to be a quick sketch, but ended up getting carried away a bit.",
     "mastodon_url": "https://mastodon.art/@redstrate/110267364853210553",
     "nsfw": true,
-    "pixiv_url": "https://www.pixiv.net/en/artworks/107564292",
     "program": "Procreate",
     "title": "Hot Bath"
 }

art/knight.json

@@ -3,7 +3,6 @@
     "date": "2021-09-19",
     "description": "Looks like this knight is ready for anything! It doesn't look like her legs are very protected though...",
     "newgrounds_url": "https://www.newgrounds.com/art/view/redstrate/woman-knight",
-    "pixiv_url": "https://www.pixiv.net/en/artworks/100096631",
     "program": "Procreate",
     "title": "woman knight"
 }

art/marchsketch.json

@@ -11,7 +11,6 @@
     "description": "Here's a collection of sketches I finally finished! I didn't feel like doing a full piece, so I opted to color each of these instead.\n\nI also finished Haunting Ground recently, so of course I had to draw Fiona. I wonder if someday Capcom would remake this game (and hopefully not change around things too much!) Pizza Tower is also awesome, I love Gustavo and his Dumb Rat.\n\nMore of my Viera in here too, mostly unused sketches.",
     "mastodon_url": "https://mastodon.art/@redstrate/109972292267062823",
     "newgrounds_url": "https://www.newgrounds.com/art/view/redstrate/march-sketch-dump",
-    "pixiv_url": "https://www.pixiv.net/en/artworks/105958979",
     "program": "Krita",
     "tags": [
         "sketch",

art/moonlight.json

@@ -7,7 +7,6 @@
     "description": "I hate drawing grass",
     "mastodon_url": "https://mastodon.art/@redstrate/111494666961164400",
     "newgrounds_url": "https://www.newgrounds.com/art/view/redstrate/moonlight",
-    "pixiv_url": "https://www.pixiv.net/en/artworks/113820694",
     "program": "Krita",
     "title": "Moonlight"
 }

art/newsakura.json

@@ -7,7 +7,6 @@
     "description": "mew",
     "mastodon_url": "https://mastodon.art/@redstrate/111123304505140712",
     "newgrounds_url": "https://www.newgrounds.com/art/view/redstrate/new-sakura",
-    "pixiv_url": "https://www.pixiv.net/en/artworks/112019046",
     "program": "Krita",
     "title": "new sakura"
 }

content/art/2021/knight.md

@@ -5,7 +5,6 @@ layout: art-detail
 filename: /art/knight.webp
 alt_text: "A blonde-haired knight is looking at the viewer. She is leaning on her trusty sword, and has some chestplates and basic armor on."
 slug: knight
-pixiv_url: https://www.pixiv.net/en/artworks/100096631
 newgrounds_url: https://www.newgrounds.com/art/view/redstrate/woman-knight
 program: Procreate
 ---

content/art/2023/bathing.md

@@ -9,7 +9,6 @@ characters:
 - Mysterious Swordswoman
 nsfw: true
 mastodon_url: https://mastodon.art/@redstrate/110267364853210553
-pixiv_url: https://www.pixiv.net/en/artworks/107564292
 program: Procreate
 ---
 Looks like it's a great time for a hot bath!

content/art/2023/marchsketch.md

@@ -15,7 +15,6 @@ arttags:
 - sketch
 - fan art
 mastodon_url: https://mastodon.art/@redstrate/109972292267062823
-pixiv_url: https://www.pixiv.net/en/artworks/105958979
 newgrounds_url: https://www.newgrounds.com/art/view/redstrate/march-sketch-dump
 program: Krita
 ---

content/art/2023/moonlight.md

@@ -8,7 +8,6 @@ slug: moonlight
 characters:
 - Mysterious Swordswoman
 mastodon_url: https://mastodon.art/@redstrate/111494666961164400
-pixiv_url: https://www.pixiv.net/en/artworks/113820694
 newgrounds_url: https://www.newgrounds.com/art/view/redstrate/moonlight
 program: Krita
 ---

content/art/2023/newsakura.md

@@ -8,7 +8,6 @@ slug: newsakura
 characters:
 - Sakura
 mastodon_url: https://mastodon.art/@redstrate/111123304505140712
-pixiv_url: https://www.pixiv.net/en/artworks/112019046
 newgrounds_url: https://www.newgrounds.com/art/view/redstrate/new-sakura
 program: Krita
 ---

content/blog/drawing-simple-cubes/index.md

@@ -61,13 +61,13 @@ void main() {
 }
 ```
 
-Let's break this down, first we can simplify the many equality checks in the beginning with [notEqual](https://docs.gl/sl4/notEqual):
+Let's break this down, first we can simplify the many equality checks in the beginning with [notEqual](https://registry.khronos.org/OpenGL-Refpages/gl4/html/notEqual.xhtml):
 
 ```glsl
 notEqual(abs(inPosition), vec3(1.0))
 ```
 
-This is component-wise, so it has the same exact meaning as before. We want to call [length](https://docs.gl/sl4/length) on this, hence the `vec3` cast. Why do we do a length cast? It's the easiest way to detect how many booleans are true, I'm not sure of a better way. For example:
+This is component-wise, so it has the same exact meaning as before. We want to call [length](https://registry.khronos.org/OpenGL-Refpages/gl4/html/length.xhtml) on this, hence the `vec3` cast. Why do we do a length cast? It's the easiest way to detect how many booleans are true, I'm not sure of a better way. For example:
 
 * `(1, 0, 0)` has a length of 1.
 * `(1, 1, 0)` has a length of $\sqrt{2}$.