From a84ce5188f26aa4108723d25ad8c86358f0a887e Mon Sep 17 00:00:00 2001
From: hawk86104 <hawk86104@163.com>
Date: Fri, 10 Jan 2025 15:05:12 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=BC=BA=E4=BA=86=20=20=E4=BD=93?=
 =?UTF-8?q?=E7=B4=A0=E5=8C=96=E6=95=88=E6=9E=9C?=
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---
 .../voxelizedShader/postProcessing.vue        | 127 ++++++++++++++++++
 .../visualArts/pages/voxelizedShader.vue      |  23 +++-
 2 files changed, 149 insertions(+), 1 deletion(-)
 create mode 100644 src/plugins/visualArts/components/voxelizedShader/postProcessing.vue

diff --git a/src/plugins/visualArts/components/voxelizedShader/postProcessing.vue b/src/plugins/visualArts/components/voxelizedShader/postProcessing.vue
new file mode 100644
index 00000000..52b6a42b
--- /dev/null
+++ b/src/plugins/visualArts/components/voxelizedShader/postProcessing.vue
@@ -0,0 +1,127 @@
+<!--
+ * @Description: 
+ * @Version: 1.668
+ * @Autor: 地虎降天龙
+ * @Date: 2025-01-10 14:37:39
+ * @LastEditors: 地虎降天龙
+ * @LastEditTime: 2025-01-10 15:01:53
+-->
+<template></template>
+<script setup lang="ts">
+import { watch } from 'vue'
+import * as THREE from 'three'
+import { useTresContext, useLoop, useRenderLoop } from '@tresjs/core'
+
+const props = defineProps({
+    use: { default: true },
+    start: { default: 0 },
+    translate: { default: 0 },
+})
+
+const { camera, renderer, scene, sizes } = useTresContext() as any
+
+const sourceRenderTarget = new THREE.WebGLRenderTarget(sizes.width.value, sizes.height.value)
+let renderTarget1 = new THREE.WebGLRenderTarget(sizes.width.value, sizes.height.value)
+let renderTarget2 = new THREE.WebGLRenderTarget(sizes.width.value, sizes.height.value)
+
+const orthoCamera = new THREE.OrthographicCamera(-1, 1, 1, -1, 0, 1)
+orthoCamera.position.z = 1
+const orthoScene = new THREE.Scene()
+const postQuad = new THREE.Mesh(
+    new THREE.PlaneGeometry(2, 2),
+    new THREE.ShaderMaterial({
+        uniforms: {
+            current: { value: null },
+            prev: { value: null },
+            start: { value: props.start },
+            time: { value: 0 },
+            translate: { value: props.translate },
+        },
+        vertexShader: `
+        varying vec2 vUv;
+        void main(){
+            vUv = uv;
+            gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
+        }
+            `,
+        fragmentShader: `
+        uniform sampler2D current;
+        uniform sampler2D prev;
+        uniform float start;
+        uniform float time;
+        uniform float translate;
+        varying vec2 vUv;
+        void main(){
+            float PI = 3.14159265359;
+            vec2 uv = vUv;
+            uv -= vec2(0.5);
+            uv *= vec2(2., 1.);
+            uv.y += translate;
+            uv /= 4.;
+            
+            uv.x += sin(uv.y * PI * 4. + time*0.3)*0.15;
+            uv.x += sin(uv.y * PI * 16. + time*0.5)*0.15;
+
+            uv += vec2(0.5);
+
+            uv = mix(vUv,uv, start);
+
+            vec4 currentColor = texture2D(current, uv);
+            vec4 prevColor = texture2D(prev,vUv);
+
+            vec4 color = vec4(mix( prevColor.rgb, currentColor.rgb, 0.05), 1.0);
+            gl_FragColor = color;
+            //gl_FragColor = vec4(vUv, 0.0, 1.0);
+    }`,
+    }),
+)
+orthoScene.add(postQuad)
+
+const finalScene = new THREE.Scene()
+const finalQuad = new THREE.Mesh(
+    new THREE.PlaneGeometry(2, 2),
+    new THREE.MeshBasicMaterial({
+        color: 0xffffff,
+        map: null,
+    }),
+)
+finalScene.add(finalQuad)
+
+const { render } = useLoop()
+const { onLoop } = useRenderLoop()
+onLoop(({ elapsed }) => {
+    postQuad.material.uniforms.time.value = elapsed
+})
+render(() => {
+    if (props.use) {
+        renderer.value.setRenderTarget(sourceRenderTarget)
+        renderer.value.render(scene.value, camera.value)
+        postQuad.material.uniforms.current.value = sourceRenderTarget.texture
+        postQuad.material.uniforms.prev.value = renderTarget1.texture
+
+        renderer.value.setRenderTarget(renderTarget2)
+        renderer.value.render(orthoScene, orthoCamera)
+
+        finalQuad.material.map = renderTarget1.texture
+        renderer.value.setRenderTarget(null)
+        renderer.value.render(finalScene, orthoCamera)
+
+        // swap render targets
+        const temp = renderTarget1
+        renderTarget1 = renderTarget2
+        renderTarget2 = temp
+
+        renderer.value.render(orthoScene, orthoCamera)
+    } else {
+        renderer.value.render(scene.value, camera.value)
+    }
+})
+
+watch(
+    () => [props.start, props.translate],
+    ([start, translate]) => {
+        postQuad.material.uniforms.start.value = start
+        postQuad.material.uniforms.translate.value = translate
+    },
+)
+</script>
diff --git a/src/plugins/visualArts/pages/voxelizedShader.vue b/src/plugins/visualArts/pages/voxelizedShader.vue
index 2ecf6989..7ee6a6ad 100644
--- a/src/plugins/visualArts/pages/voxelizedShader.vue
+++ b/src/plugins/visualArts/pages/voxelizedShader.vue
@@ -4,7 +4,7 @@
  * @Autor: 地虎降天龙
  * @Date: 2025-01-10 11:30:03
  * @LastEditors: 地虎降天龙
- * @LastEditTime: 2025-01-10 12:23:07
+ * @LastEditTime: 2025-01-10 15:03:43
 -->
 <template>
     <TresCanvas v-bind="state" window-size>
@@ -19,6 +19,8 @@
         <Suspense>
             <reflectorDUDV v-bind="reflectorState" />
         </Suspense>
+
+        <postProcessing v-bind="voxelizedShaderConfig" />
     </TresCanvas>
 </template>
 
@@ -28,6 +30,7 @@ import { OrbitControls } from '@tresjs/cientos'
 import { reflectorDUDV } from 'PLS/floor'
 import { Pane } from 'tweakpane'
 import voxelizedShaderModel from '../components/voxelizedShader/model.vue'
+import postProcessing from '../components/voxelizedShader/postProcessing.vue'
 
 const state = {
     clearColor: '#050505',
@@ -44,6 +47,9 @@ const voxelizedShaderConfig = reactive({
     mosaic: 2.31,
     progress: 0.31,
     triScale: 1,
+    use: true,
+    start: 0,
+    translate: 0,
 })
 const paneControl = new Pane({ title: '参数' })
 paneControl.addBinding(voxelizedShaderConfig, 'progress', {
@@ -64,4 +70,19 @@ paneControl.addBinding(voxelizedShaderConfig, 'triScale', {
     max: 1,
     step: 0.01,
 })
+paneControl.addBinding(voxelizedShaderConfig, 'use', {
+    label: '开启延迟',
+})
+paneControl.addBinding(voxelizedShaderConfig, 'start', {
+    label: '曲折度',
+    min: 0,
+    max: 1,
+    step: 0.01,
+})
+paneControl.addBinding(voxelizedShaderConfig, 'translate', {
+    label: '偏移量',
+    min: 0,
+    max: 1,
+    step: 0.01,
+})
 </script>