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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| import {WebGLRenderer} from 'three'; | ||
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| const DEFAULT_WIDTH = 320; | ||
| const DEFAULT_HEIGHT = 240; | ||
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| export class ThreeMultiViewRenderer { | ||
| #views = new Map(); | ||
| #lastViewId = 0; | ||
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| constructor({provideContext, onDestroy}) { | ||
| const [, setMultiViewRenderer] = provideContext('multiViewRenderer', this); | ||
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| onDestroy(() => { | ||
| setMultiViewRenderer(null); | ||
| }); | ||
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| this.canvas = new OffscreenCanvas(DEFAULT_WIDTH, DEFAULT_HEIGHT); | ||
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| // XXX how we can set webgl-renderer parameters? | ||
| this.renderer = new WebGLRenderer({canvas: this.canvas}); | ||
| this.renderer.setScissorTest(true); | ||
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| console.log('ThreeMultiViewRenderer created', this); | ||
| } | ||
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| createView(width = DEFAULT_WIDTH, height = DEFAULT_HEIGHT) { | ||
| const viewId = ++this.#lastViewId; | ||
| const view = {viewId, width, height, viewport: [0, 0, width, height], scene: null, camera: null}; | ||
| this.#views.set(viewId, view); | ||
| return view; | ||
| } | ||
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| renderView(view) { | ||
| if (view?.scene == null || view?.camera == null) return; | ||
| if (!(view.width > 0 && view.height > 0)) return; | ||
| if (!(view.viewport[2] > 0 && view.viewport[3] > 0)) return; | ||
| if (this.#views.has(view.viewId) === false) { | ||
| throw new Error(`not my view: ${view.viewId}`); | ||
| } | ||
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| this.updateSize(); | ||
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| this.renderer.setScissor(0, 0, view.width, view.height); | ||
| this.renderer.setViewport(...view.viewport); | ||
| this.renderer.render(view.scene, view.camera); | ||
| } | ||
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| destroyView(view) { | ||
| const viewId = typeof view === 'number' ? view : view.viewId; | ||
| this.#views.delete(viewId); | ||
| } | ||
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| updateSize() { | ||
| let width = DEFAULT_WIDTH; | ||
| let height = DEFAULT_HEIGHT; | ||
| for (const view of this.#views.values()) { | ||
| width = Math.max(width, view.width); | ||
| height = Math.max(height, view.height); | ||
| } | ||
| if (this.canvas.width === width && this.canvas.height === height) return; | ||
| this.renderer.setSize(width, height, false); | ||
| } | ||
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| onDestroy() { | ||
| this.renderer.dispose(); | ||
| this.renderer = null; | ||
| console.log('ThreeMultiViewRenderer destroyed', this); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| export function ThreeRenderView(/* {useContext, onDestroy, provideContext} */) { | ||
| // TODO implement ThreeRenderView | ||
| // | ||
| // - useContext('canvas'); | ||
| // - create bitmapdrawingcontext2d.. | ||
| // - useContext('canvasSize'); | ||
| // - useContext('multiViewRenderer'); | ||
| // - create render-view with multiViewRenderer.createView() | ||
| // - onRenderFrame() - call multiViewRenderer.renderView(view) and copy webgl-canvas-content to our canvas | ||
| // | ||
| // maybe not here but in another shadow-object: | ||
| // - provideContext('three.scene'); | ||
| // - provideContext('three.camera'); | ||
| // - setCamera(...) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,15 +1,15 @@ | ||
| export class VfxCtxCanvas { | ||
| constructor({useProperty, provideContext}) { | ||
| constructor({useProperty, useContext}) { | ||
| const getBar = useProperty('bar'); | ||
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| getBar((val) => { | ||
| console.log('[VfxCtxCanvas] bar changed to', val); | ||
| console.debug('[VfxCtxCanvas] bar changed to', val); | ||
| }); | ||
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| console.debug('[VfxCtxCanvas] bar is initially set to', getBar()); | ||
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| // ---- | ||
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| provideContext('multiViewRenderer', this); | ||
| useContext('multiViewRenderer')((val) => { | ||
| console.log('[VfxCtxCanvas] multiViewRenderer context set to', val); | ||
| }); | ||
| } | ||
| } |
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