vanruesc/postprocessing wip

src/components/postprocessing/vanruesc/Effect.ts

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+import { defineComponent, inject, onUnmounted, PropType } from 'vue'
+import { LoadingManager } from 'three'
+// @ts-ignore
+import * as PP from 'postprocessing'
+// import { RendererInterface } from '../../../build/trois'
+import { RendererInterface } from '../../../export'
+import { EffectPassInjectionKey } from './EffectPass'
+
+type EffectTypes = 'bloom' | 'dof' | 'smaa'
+
+export default defineComponent({
+  props: {
+    type: { type: String as PropType<EffectTypes>, required: true },
+    options: { type: Object, default: () => ({}) },
+  },
+  setup(props) {
+    const effectPass = inject(EffectPassInjectionKey)
+    if (!effectPass) {
+      console.error('EffectPass not found')
+      return
+    }
+
+    let effect: undefined | PP.Effect // not useful
+    const effectIndex = effectPass.getEffectIndex()
+    // console.log(effectIndex)
+
+    const initEffect = (params: any = undefined) => {
+      effect = createEffect(effectPass.composer.renderer, props.type, props.options, params)
+      if (!effect) {
+        console.error('Invalid effect type')
+        return
+      }
+      effectPass.addEffect(effect, effectIndex)
+    }
+
+    onUnmounted(() => {
+      if (effect) {
+        effectPass.removeEffect(effect)
+        effect.dispose()
+      }
+    })
+
+    if (props.type === 'smaa') {
+      const smaaImageLoader = new PP.SMAAImageLoader(new LoadingManager())
+      smaaImageLoader.load(([search, area]: [HTMLImageElement, HTMLImageElement]) => {
+        initEffect({ smaaSearch: search, smaaArea: area })
+      })
+    } else {
+      initEffect()
+    }
+  },
+  render() { return [] },
+})
+
+function createEffect(
+  renderer: RendererInterface,
+  type: string,
+  options: Record<string, any>,
+  assets: any = undefined
+): PP.Effect {
+  let effect
+  switch (type) {
+    case 'bloom' :
+      effect = new PP.BloomEffect(options)
+      break
+    case 'dof' :
+      effect = new PP.DepthEffect(renderer, options)
+      break
+    case 'smaa' :
+      effect = createSmaaEffect(options, assets)
+      break
+  }
+  return effect
+}
+
+function createSmaaEffect(options: Record<string, any>, assets: any): PP.Pass {
+  const { smaaSearch, smaaArea } = assets
+  // TODO : options
+  return new PP.SMAAEffect(smaaSearch, smaaArea)
+}

src/components/postprocessing/vanruesc/EffectComposer.ts

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+import { defineComponent, inject, InjectionKey, onUnmounted, provide } from 'vue'
+import { Clock } from 'three'
+// @ts-ignore
+import * as PP from 'postprocessing'
+// import { RendererInjectionKey, RendererInterface } from '../../../build/trois'
+import { RendererInjectionKey, RendererInterface } from '../../../export'
+
+export interface EffectComposerInterface {
+  renderer: RendererInterface
+  composer: PP.EffectComposer
+  getPassIndex: {(): number}
+}
+
+export const ComposerInjectionKey: InjectionKey<EffectComposerInterface> = Symbol('Composer')
+
+export default defineComponent({
+  setup() {
+    const renderer = inject(RendererInjectionKey)
+    if (!renderer) {
+      console.error('Renderer not found')
+      return
+    }
+
+    const composer = new PP.EffectComposer(renderer.renderer)
+    const clock = new Clock()
+    const render = () => { composer.render(clock.getDelta()) }
+    const setSize = () => { composer.setSize(renderer.size.width, renderer.size.height) }
+
+    let passIndex = 0
+    const getPassIndex = () => { return passIndex++ }
+
+    renderer.onInit(() => {
+      renderer.renderer.autoClear = false
+      renderer.renderFn = render
+      setSize()
+      renderer.onResize(setSize)
+    })
+
+    onUnmounted(() => {
+      renderer.offResize(setSize)
+      composer.dispose()
+    })
+
+    provide(ComposerInjectionKey, { renderer, composer, getPassIndex })
+  },
+  render() {
+    return this.$slots.default ? this.$slots.default() : []
+  },
+})

src/components/postprocessing/vanruesc/EffectPass.ts

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+import { defineComponent, inject, InjectionKey, onUnmounted, provide } from 'vue'
+// @ts-ignore
+import * as PP from 'postprocessing'
+import { ComposerInjectionKey, EffectComposerInterface } from './EffectComposer'
+
+export interface EffectPassInterface {
+  composer: EffectComposerInterface
+  effectPass: PP.EffectPass
+  effects: Array<PP.Effect>
+  getEffectIndex: {(): number}
+  addEffect: {(effect: PP.Effect, index: number): number}
+  removeEffect: {(effect: PP.Effect): number}
+}
+
+export const EffectPassInjectionKey: InjectionKey<EffectPassInterface> = Symbol('Composer')
+
+export default defineComponent({
+  props: {
+    // needsSwap: { type: Boolean, default: false },
+    renderToScreen: { type: Boolean, default: false },
+  },
+  setup() {
+    const composer = inject(ComposerInjectionKey)
+    if (!composer) {
+      console.error('Composer not found')
+      return {}
+    }
+
+    const passIndex = composer.getPassIndex()
+    let effectPass: PP.EffectPass
+
+    const effects: Array<PP.Effect> = []
+    let effectIndex = 0
+    const getEffectIndex = () => { return effectIndex++ }
+
+    const refreshEffectPass = () => {
+      // we have to recreate EffectPass (modifying effectPass.effects don't work)
+      if (effectPass) {
+        composer.composer.removePass(effectPass)
+        effectPass.dispose()
+      }
+      effectPass = new PP.EffectPass(composer.renderer.camera, ...effects)
+      composer.composer.addPass(effectPass, passIndex)
+    }
+
+    const addEffect = (effect: PP.Effect, index: number) => {
+      effects.splice(index, 1, effect)
+      refreshEffectPass()
+    }
+
+    const removeEffect = (effect: PP.Effect) => {
+      const index = effects.indexOf(effect)
+      if (index >= 0) {
+        effects.splice(index, 1)
+        refreshEffectPass()
+      }
+    }
+
+    onUnmounted(() => {
+      if (effectPass) {
+        composer.composer.removePass(effectPass)
+        effectPass.dispose()
+      }
+    })
+
+    provide(EffectPassInjectionKey, {
+      composer,
+      effectPass,
+      effects,
+      getEffectIndex,
+      addEffect, removeEffect,
+    })
+  },
+  render() { return this.$slots.default ? this.$slots.default() : [] },
+})

src/components/postprocessing/vanruesc/Pass.ts

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+import { defineComponent, inject, onUnmounted, PropType } from 'vue'
+// @ts-ignore
+import * as PP from 'postprocessing'
+import { ComposerInjectionKey } from './EffectComposer'
+// import { RendererInterface } from '../../../build/trois'
+import { RendererInterface } from '../../../export'
+
+type PassTypes = 'render'
+
+export default defineComponent({
+  props: {
+    type: { type: String as PropType<PassTypes>, required: true },
+    options: { type: Object, default: () => ({}) },
+    // needsSwap: { type: Boolean, default: false },
+    renderToScreen: { type: Boolean, default: false },
+  },
+  setup(props) {
+    const composer = inject(ComposerInjectionKey)
+    if (!composer || !composer.renderer) {
+      console.error('Composer/Renderer not found')
+      return {}
+    }
+
+    let pass: undefined | PP.Pass
+    const passIndex = composer.getPassIndex()
+
+    const initPass = (params: any = undefined) => {
+      pass = createPass(composer.renderer, props.type, props.options)
+      if (!pass) {
+        console.error('Invalid pass type')
+        return
+      }
+      pass.renderToScreen = props.renderToScreen
+      composer.composer.addPass(pass, passIndex)
+    }
+
+    onUnmounted(() => {
+      if (pass) {
+        composer.composer.removePass(pass)
+        pass.dispose()
+      }
+    })
+
+    initPass()
+  },
+  render() { return [] },
+})
+
+function createPass(
+  renderer: RendererInterface,
+  type: string,
+  options: Record<string, any>
+): PP.Pass {
+  let pass
+  switch (type) {
+    case 'render' :
+      pass = new PP.RenderPass(renderer.scene, renderer.camera)
+      break
+  }
+  return pass
+}

src/components/postprocessing/vanruesc/index.ts

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+export { default as EffectComposer } from './EffectComposer'
+export { default as Pass } from './Pass'
+export { default as EffectPass } from './EffectPass'
+export { default as Effect } from './Effect'