From e8e6e124509bfd4a86462c298d470021181676fb Mon Sep 17 00:00:00 2001
From: thepaperpilot <thepaperpilot@gmail.com>
Date: Thu, 27 Jun 2024 23:14:26 -0500
Subject: [PATCH] Rewrite hole so that the background can appear through it

---
 site/.vitepress/theme/Background.vue | 40 +++++++------
 site/.vitepress/theme/Camera.vue     | 21 -------
 site/.vitepress/theme/Hole.vue       | 84 ++++++++++++++++++++++++++++
 site/.vitepress/theme/Layout.vue.in  |  2 +-
 site/index.md                        | 26 ++++-----
 5 files changed, 122 insertions(+), 51 deletions(-)
 delete mode 100644 site/.vitepress/theme/Camera.vue
 create mode 100644 site/.vitepress/theme/Hole.vue

diff --git a/site/.vitepress/theme/Background.vue b/site/.vitepress/theme/Background.vue
index 8ea0efaa..6744c075 100644
--- a/site/.vitepress/theme/Background.vue
+++ b/site/.vitepress/theme/Background.vue
@@ -1,21 +1,25 @@
 <template>
-    <TresGroup ref="groupRef" v-if="renderer">
-      <TresMesh v-for="i in rows * cols" :position="[((i % cols) - cols / 2) * 304, (Math.floor((i - 1) / cols) - rows / 2) * 304, 0]" >
+    <TresGroup ref="groupRef" v-if="renderer" :renderOrder="1">
+      <TresMesh v-for="i in rows * cols" :position="[((i % cols) - cols / 2) * 304, (Math.floor((i - 1) / cols) - rows / 2) * 304, 1]">
         <TresShapeGeometry :args="[shapes]" />
-        <TresShaderMaterial :vertexShader="vertexShader" :fragmentShader="fragmentShader" :uniforms="uniforms" :blending="AdditiveBlending" />
+        <TresShaderMaterial :vertexShader="vertexShader" :fragmentShader="fragmentShader" :uniforms="uniforms" :blending="AdditiveBlending" :stencilWrite="mask != null" :stencilRef="mask ?? 0" :stencilFunc="EqualStencilFunc" :stencilFail="KeepStencilOp" :stencilZFail="KeepStencilOp" :stencilZPass="KeepStencilOp" />
       </TresMesh>
     </TresGroup>
 </template>
 
 <script setup lang="ts">
 import { useLoader, useRenderLoop, useTresContext } from '@tresjs/core';
-import { AdditiveBlending, Group, Vector2 } from "three";
+import { AdditiveBlending, EqualStencilFunc, Group, KeepStencilOp, Vector2, Vector3 } from "three";
 import { SVGLoader } from "three/examples/jsm/loaders/SVGLoader.js";
 import { computed, onMounted, onUnmounted, ref, shallowRef } from "vue";
 import noise from "./noise.glsl?raw";
 
 const { renderer, sizes } = useTresContext();
 
+const props = defineProps<{
+  mask?: number;
+}>();
+
 // Load SVG
 const { paths } = await useLoader(SVGLoader, '/circuit-board.svg');
 const shapes = paths.map(path => SVGLoader.createShapes(path)).reduce((acc, curr) => [...acc, ...curr]);
@@ -26,7 +30,8 @@ const cols = computed(() => Math.ceil(sizes.width.value / 304));
 // Handle mouse position
 const mousePos = ref(new Vector2(Infinity, Infinity));
 function updateMousePos(event: MouseEvent) {
-  mousePos.value = new Vector2(event.screenX, window.screen.availHeight - event.screenY);
+  const {x, y, height} = renderer.value.domElement.getBoundingClientRect();
+  mousePos.value = new Vector2(event.screenX - x, height + y + (window.outerHeight - window.innerHeight) - event.screenY);
   if (groupRef.value) {
     groupRef.value.children.forEach(child => {
       child.material.uniforms.uMouse.value = mousePos.value;
@@ -54,10 +59,20 @@ onUnmounted(() => {
   window.removeEventListener("mouseout", handleMouseLeave);
 });
 
+const { onLoop } = useRenderLoop();
+onLoop(({ elapsed }) => {
+  if (groupRef.value) {
+    groupRef.value.children.forEach(child => {
+      child.material.uniforms.uTime.value = elapsed;
+    });
+  }
+});
+
 // Shaders
 const groupRef = shallowRef<Group | null>(null);
 
 const uniforms = {
+  uColor: computed(() => props.mask == null ? new Vector3() : new Vector3(0.23, 0.26, 0.32)),
   uTime: { value: 0 },
   uMouse: { value: new Vector2(Infinity, Infinity) }
 }
@@ -72,26 +87,19 @@ void main() {
   vUv = uv;
 }
 `;
-const fragmentShader = noise + `
+const fragmentShader = `
+${noise}
 precision mediump float;
 uniform float uTime;
 uniform vec2 uMouse;
+uniform vec3 uColor;
 varying vec2 vUv;
 
 void main() {
   float dist = distance(gl_FragCoord.xy, uMouse);
   float alpha = max(0., 1. - dist / 304.);
   alpha += max(0., snoise(vec3(gl_FragCoord.xy / 304., uTime / 4.)));
-  gl_FragColor = vec4(0, 0, 0, alpha);
+  gl_FragColor = vec4(mix(uColor, vec3(0.), alpha), uColor == vec3(0.) ? alpha : 1.);
 }
 `;
-
-const { onLoop } = useRenderLoop();
-onLoop(({ elapsed }) => {
-  if (groupRef.value) {
-    groupRef.value.children.forEach(child => {
-      child.material.uniforms.uTime.value = elapsed;
-    });
-  }
-});
 </script>
diff --git a/site/.vitepress/theme/Camera.vue b/site/.vitepress/theme/Camera.vue
deleted file mode 100644
index 58eb01e6..00000000
--- a/site/.vitepress/theme/Camera.vue
+++ /dev/null
@@ -1,21 +0,0 @@
-<template>
-    <TresOrthographicCamera :position="[0, 0, 10]" />
-</template>
-
-<script setup lang="ts">
-import { useTresContext } from '@tresjs/core';
-import { OrthographicCamera } from 'three';
-import { watch } from "vue";
-
-const context = useTresContext();
-watch([context.sizes.width, context.sizes.height, context.camera], ([width, height, camera]) => {
-    const cam = camera as OrthographicCamera;
-    if (cam) {
-        cam.left = 0;
-        cam.bottom = 0
-        cam.right = width;
-        cam.top = height;
-        cam.updateProjectionMatrix();
-    }
-});
-</script>
diff --git a/site/.vitepress/theme/Hole.vue b/site/.vitepress/theme/Hole.vue
new file mode 100644
index 00000000..ccf80c89
--- /dev/null
+++ b/site/.vitepress/theme/Hole.vue
@@ -0,0 +1,84 @@
+<template>
+    <TresMesh :position="[Math.min(sizes.width.value, sizes.height.value) / 2 * .05,Math.min(sizes.width.value, sizes.height.value) / 2 * .05,0]">
+        <TresCircleGeometry :args="[Math.min(sizes.width.value, sizes.height.value) / 2 * .9, 360]" />
+        <TresShaderMaterial :vertexShader="vertexShader" :fragmentShader="fragmentShader" :uniforms="uniforms" :blending="NormalBlending" :transparent="true"  />
+    </TresMesh>
+    <TresMesh :position="[Math.min(sizes.width.value, sizes.height.value) / 2 * .05,Math.min(sizes.width.value, sizes.height.value) / 2 * .05,0]" :renderOrder="0">
+        <TresCircleGeometry :args="[Math.min(sizes.width.value, sizes.height.value) / 2 * .9, 360]" />
+        <TresShaderMaterial :vertexShader="vertexShader" :fragmentShader="fragmentShaderBorderless" :uniforms="uniforms" :blending="NormalBlending" :colorWrite="false" :depthWrite="false" :depthTest="false" :stencilWrite="true" :stencilRef="1" :stencilFunc="AlwaysStencilFunc" :stencilFail="KeepStencilOp" :stencilZFail="KeepStencilOp" :stencilZPass="ReplaceStencilOp" />
+    </TresMesh>
+    <Background :mask="1" />
+</template>
+
+<script setup lang="ts">
+import { useTresContext } from '@tresjs/core';
+import { AlwaysStencilFunc, KeepStencilOp, NormalBlending, ReplaceStencilOp, Vector3 } from "three";
+import Background from "./Background.vue";
+import noise from "./noise.glsl?raw";
+
+const { sizes } = useTresContext();
+
+const uniforms = {
+    uColor: { value: new Vector3(0.23, 0.26, 0.32) },
+    uSeed: { value: Math.random() *  100 }
+};
+
+const vertexShader = `
+varying vec2 vUv;
+
+void main() {
+  vec4 modelPosition = modelMatrix * vec4(position, 1.0);
+  vec4 viewPosition = viewMatrix * modelPosition;
+  gl_Position = projectionMatrix * viewPosition;
+  vUv = uv / .8 - 0.1;
+}
+`;
+const fragmentVariables = `
+precision mediump float;
+uniform vec3 uColor;
+uniform float uTime;
+uniform float uSeed;
+uniform vec2 uMouse;
+varying vec2 vUv;
+`;
+const fragmentShader = `
+${noise}
+${fragmentVariables}
+
+vec4 getColor(vec2 pos) {
+    float dst = distance(pos, vec2(0.5, 0.5));
+    if (dst < 0.475) {
+        return vec4(uColor, 1.);
+    } else if (dst < 0.5) {
+        return vec4(.83, .83, .83, 1.);
+    }
+    return vec4(0.);
+}
+
+void main() {
+  vec2 distortion = vec2(0., 0.);
+  distortion.x += (snoise(vec3(vUv * 50., 0. + uSeed))) / 200.;
+  distortion.y += (snoise(vec3(vUv * 50., 10. + uSeed))) / 200.;
+  distortion.x += (snoise(vec3(vUv * 5., 20. + uSeed))) / 8.;
+  distortion.y += (snoise(vec3(vUv * 5., 30. + uSeed))) / 8.;
+  gl_FragColor = getColor(vUv + distortion);
+}
+`;
+const fragmentShaderBorderless = `
+${noise}
+${fragmentVariables}
+void main() {
+    vec2 distortion = vec2(0., 0.);
+    distortion.x += (snoise(vec3(vUv * 50., 0. + uSeed))) / 200.;
+    distortion.y += (snoise(vec3(vUv * 50., 10. + uSeed))) / 200.;
+    distortion.x += (snoise(vec3(vUv * 5., 20. + uSeed))) / 8.;
+    distortion.y += (snoise(vec3(vUv * 5., 30. + uSeed))) / 8.;
+    float dst = distance(vUv + distortion, vec2(0.5, 0.5));
+    if (dst < 0.475) {
+        gl_FragColor = vec4(1.);
+        return;
+    }
+    discard;
+}
+`;
+</script>
diff --git a/site/.vitepress/theme/Layout.vue.in b/site/.vitepress/theme/Layout.vue.in
index cfba92e2..24207acd 100644
--- a/site/.vitepress/theme/Layout.vue.in
+++ b/site/.vitepress/theme/Layout.vue.in
@@ -5,7 +5,7 @@
       <ClientOnly>
         <div class="background">
           <TresCanvas>
-            <Camera />
+            <TresOrthographicCamera :position="[0, 0, 10]" />
             <TresAmbientLight :intensity="1" />
             <Suspense>
               <Background />
diff --git a/site/index.md b/site/index.md
index 16622959..0610d530 100644
--- a/site/index.md
+++ b/site/index.md
@@ -8,7 +8,17 @@ next: false
 I'm Anthony, or The Paper Pilot, and welcome to my [digital garden](/garden/digital-gardens/index.md)!
 
 <div class="hero-wrapper">
-  <div class="hole"></div>
+  <TresCanvas :stencil="true" >
+    <TresOrthographicCamera :position="[0, 0, 10]" />
+    <TresAmbientLight :intensity="1" />
+    <TresMesh>
+      <TresTorusGeometry :args="[1, 0.5, 16, 32]" />
+      <TresMeshBasicMaterial color="orange" />
+    </TresMesh>
+    <Suspense>
+      <Hole />
+    </Suspense>
+  </TresCanvas>
   <img class="hero" src="/paperpilot.png" :style="`--x-offset: ${xOffset * 20}%`" />
 </div>
 
@@ -32,6 +42,8 @@ This is a public website collecting all my (public) thoughts and projects all in
 
 <script setup>
   import { ref, onMounted, onUnmounted } from "vue";
+  import { TresCanvas } from '@tresjs/core'
+  import Hole from "./.vitepress/theme/Hole.vue";
 
   const xOffset = ref(0);
   function mouseMoveHandler(event) {
@@ -69,18 +81,6 @@ This is a public website collecting all my (public) thoughts and projects all in
     }
   }
 
-  .hole {
-    height: 80%;
-    aspect-ratio: 1;
-    border: solid 10px lightgrey;
-    border-radius: 50%;
-    background: #3b4252;
-    position: absolute;
-    left: 33%;
-    transform: translateX(-50%);
-    filter: url(#displacementFilter);
-  }
-
   .hero {
     height: 80%;
     width: unset;