Merge pull request #79 from Tresjs/feature-add-infinite-tube-demo

feat: add infinite demo to playground

Author: JaimeTorrealba

components/content/infiniteTube.vue

@@ -0,0 +1,80 @@
+<script setup>
+import { Vector3, CatmullRomCurve3, BackSide, TubeGeometry, RepeatWrapping } from 'three'
+import { useWindowSize } from '@vueuse/core'
+
+const { map, aoMap, normalMap } = await useTexture({
+  map: 'https://raw.githubusercontent.com/Tresjs/assets/main/textures/alien_flesh/Alien_Flesh_001_color.jpg',
+  normalMap: 'https://raw.githubusercontent.com/Tresjs/assets/main/textures/alien_flesh/Alien_Flesh_001_norm.jpg',
+  aoMap: 'https://raw.githubusercontent.com/Tresjs/assets/main/textures/alien_flesh/Alien_Flesh_001_occ.jpg',
+})
+
+const tubeMaterialRef = shallowRef(null)
+const tubeRef = ref(null)
+const progress = ref(0)
+const { width, height } = useWindowSize()
+
+const points = []
+
+for (let i = 0; i < 5; i += 1) {
+  points.push(new Vector3(0, 0, 2.5 * (i / 4)))
+}
+
+const curve = new CatmullRomCurve3(points)
+
+watch(tubeMaterialRef, (value) => {
+  value.map.wrapS = RepeatWrapping
+  value.map.wrapT = RepeatWrapping
+  value.normalMap.wrapS = RepeatWrapping
+  value.normalMap.wrapT = RepeatWrapping
+  value.aoMap.wrapS = RepeatWrapping
+  value.aoMap.wrapT = RepeatWrapping
+})
+watch(progress, (value) => {
+  tubeRef.value.geometry.dispose()
+  curve.points[2].x = value * 0.05
+  curve.points[2].y = - value * 0.05
+  curve.points[4].x = value * 0.005
+  tubeRef.value.geometry = new TubeGeometry(curve, 70, 0.02, 50, false)
+})
+
+const { onLoop } = useRenderLoop()
+
+onLoop(({ delta }) => {
+  tubeMaterialRef.value.map.offset.x -= delta * 0.25
+  tubeMaterialRef.value.normalMap.offset.x -= delta * 0.25
+  tubeMaterialRef.value.aoMap.offset.x -= delta * 0.25
+})
+</script>
+
+<template>
+  <TresCanvas
+    window-size
+    clear-color="#000000"
+    antialias
+  >
+    <TresFog :args="[0x222222, 0.6, 2.8]" />
+    <TresPerspectiveCamera
+      :args="[8, width / height, 0.1, 1000]"
+      :position="[0, 0, 0.35]"
+    />
+    <ScrollControls
+      v-model="progress"
+      :distance="0"
+    />
+    <TresMesh
+      ref="tubeRef"
+      :position="[0, 0, -2]"
+    >
+      <TresTubeGeometry :args="[curve, 70, 0.02, 50, false]" />
+      <TresMeshStandardMaterial
+        ref="tubeMaterialRef"
+        :side="BackSide"
+        :map="map"
+        :ao-map="aoMap"
+        :normal-map="normalMap"
+      />
+    </TresMesh>
+    <TresDirectionalLight :args="[0xffffff, 0.8]" />
+    <TresHemisphereLight :args="[0xffffbb, 0x887979, 0.9]" />
+  </TresCanvas>
+</template>

content/experiments/infinite-tube.md

@@ -0,0 +1,106 @@
+---
+thumbnail: /infinite-tube.png
+title: Infinite Tube
+slug: infinite-tube
+author: jaime-bboyjt
+status: published
+description: How to create an infinite tube easy with Tresjs
+tags: ['scroll-controls', 'tube-geometry', 'textures-offset']
+---
+
+::infinite-tube
+::
+
+::the-info
+
+![infinite-tube](/infinite-tube.png)
+
+# Infinite tube
+
+Author: [@**jaimebboyjt**](https://twitter.com/jaimebboyjt).
+
+> An easy way to create infinite tubes with TresJS.
+
+```vue
+<script setup>
+import { Vector3, CatmullRomCurve3, BackSide, TubeGeometry, RepeatWrapping } from 'three'
+import { useWindowSize } from '@vueuse/core'
+
+const { map, aoMap, normalMap } = await useTexture({
+  map: 'https://raw.githubusercontent.com/Tresjs/assets/main/textures/alien_flesh/Alien_Flesh_001_color.jpg',
+  normalMap: 'https://raw.githubusercontent.com/Tresjs/assets/main/textures/alien_flesh/Alien_Flesh_001_norm.jpg',
+  aoMap: 'https://raw.githubusercontent.com/Tresjs/assets/main/textures/alien_flesh/Alien_Flesh_001_occ.jpg',
+})
+
+const tubeMaterialRef = shallowRef(null)
+const tubeRef = ref(null)
+const progress = ref(0)
+const { width, height } = useWindowSize()
+
+const points = []
+
+for (let i = 0; i < 5; i += 1) {
+  points.push(new Vector3(0, 0, 2.5 * (i / 4)))
+}
+
+const curve = new CatmullRomCurve3(points)
+
+watch(tubeMaterialRef, (value) => {
+  value.map.wrapS = RepeatWrapping
+  value.map.wrapT = RepeatWrapping
+  value.normalMap.wrapS = RepeatWrapping
+  value.normalMap.wrapT = RepeatWrapping
+  value.aoMap.wrapS = RepeatWrapping
+  value.aoMap.wrapT = RepeatWrapping
+})
+watch(progress, (value) => {
+  tubeRef.value.geometry.dispose()
+  curve.points[2].x = value * 0.05
+  curve.points[2].y = - value * 0.05
+  curve.points[4].x = value * 0.005
+  tubeRef.value.geometry = new TubeGeometry(curve, 70, 0.02, 50, false)
+})
+
+const { onLoop } = useRenderLoop()
+
+onLoop(({ elapsed }) => {
+  tubeMaterialRef.value.map.offset.x -= delta * 0.25
+  tubeMaterialRef.value.normalMap.offset.x -= delta * 0.25
+  tubeMaterialRef.value.aoMap.offset.x -= delta * 0.25
+})
+</script>
+
+<template>
+  <TresCanvas
+    window-size
+    clear-color="#ff4444"
+    antialias
+  >
+    <TresFog :args="[0x222222, 0.6, 2.8]" />
+    <TresPerspectiveCamera
+      :args="[8, width / height, 0.1, 1000]"
+      :position="[0, 0, 0.35]"
+    />
+    <ScrollControls
+      v-model="progress"
+      :distance="0"
+    />
+    <TresMesh
+      ref="tubeRef"
+      :position="[0, 0, -2]"
+    >
+      <TresTubeGeometry :args="[curve, 70, 0.02, 50, false]" />
+      <TresMeshStandardMaterial
+        ref="tubeMaterialRef"
+        :side="BackSide"
+        :map="map"
+        :ao-map="aoMap"
+        :normal-map="normalMap"
+      />
+    </TresMesh>
+    <TresDirectionalLight :args="[0xffffff, 0.8]" />
+    <TresHemisphereLight :args="[0xffffbb, 0x887979, 0.9]" />
+  </TresCanvas>
+</template>
+
+```