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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| import * as THREE from 'three' | ||
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| export default class TextureImageDataRenderer { | ||
| width | ||
| height | ||
| cameraRTT = null | ||
| sceneRTT = null | ||
| material = null | ||
| quad = null | ||
| renderer = null | ||
| rtTexture = null | ||
| constructor(width, height) { | ||
| this.width = width | ||
| this.height = height | ||
| } | ||
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| render(texture, multiplyColor, clearColor, width, height, isTransparent,sRGBEncoding = true) { | ||
| // if texture is null or undefined, create a texture only with clearColor (that is color type) | ||
| if (!texture) { | ||
| texture = TextureImageDataRenderer.createSolidColorTexture(clearColor, width, height) | ||
| } | ||
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| if (this.renderer == null) { | ||
| this.sceneRTT = new THREE.Scene() | ||
| this.cameraRTT = new THREE.OrthographicCamera(-width / 2, width / 2, height / 2, -height / 2, -10000, 10000) | ||
| this.cameraRTT.position.z = 100 | ||
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| this.sceneRTT.add(this.cameraRTT) | ||
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| this.material = new THREE.MeshBasicMaterial({ | ||
| side: THREE.DoubleSide, | ||
| transparent: true, | ||
| opacity: 1, | ||
| color: new THREE.Color(1, 1, 1), | ||
| }) | ||
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| const plane = new THREE.PlaneGeometry(1, 1) | ||
| this.quad = new THREE.Mesh(plane, this.material) | ||
| this.quad.scale.set(width, height, 1) | ||
| this.sceneRTT.add(this.quad) | ||
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| this.renderer = new THREE.WebGLRenderer() | ||
| this.renderer.setPixelRatio(1) | ||
| this.renderer.setSize(width, height) | ||
| //renderer.setClearColor(new Color(1, 1, 1), 1); | ||
| this.renderer.autoClear = false | ||
| } else { | ||
| if(this.cameraRTT){ | ||
| this.cameraRTT.left = -width / 2 | ||
| this.cameraRTT.right = width / 2 | ||
| this.cameraRTT.top = height / 2 | ||
| this.cameraRTT.bottom = -height / 2 | ||
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| this.cameraRTT.updateProjectionMatrix() | ||
| } | ||
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| this.quad?.scale.set(width, height, 1) | ||
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| this.renderer.setSize(width, height) | ||
| } | ||
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| this.rtTexture = new THREE.WebGLRenderTarget(width, height) | ||
| if('encoding' in this.rtTexture.texture){ | ||
| // for THREE version < 0.151 | ||
| this.rtTexture.texture.encoding = sRGBEncoding ? THREE.sRGBEncoding : THREE.NoColorSpace; | ||
| }else if ('colorSpace' in this.rtTexture.texture) { | ||
| // for THREE version > 0.151 | ||
| this.rtTexture.texture.colorSpace = sRGBEncoding ? THREE.SRGBColorSpace : THREE.NoColorSpace; | ||
| } | ||
|
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| if(this.material){ | ||
| this.material.map = texture | ||
| this.material.color = multiplyColor.clone() | ||
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| } | ||
| // set opacoty to 0 if texture is transparent | ||
| this.renderer.setClearColor(clearColor.clone(), isTransparent ? 0 : 1) | ||
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| this.renderer.setRenderTarget(this.rtTexture) | ||
| this.renderer.clear() | ||
| if(this.sceneRTT && this.cameraRTT){ | ||
| this.renderer.render(this.sceneRTT, this.cameraRTT) | ||
| } | ||
|
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| let buffer = new Uint8ClampedArray(this.rtTexture.width * this.rtTexture.height * 4) | ||
| this.renderer.readRenderTargetPixels(this.rtTexture, 0, 0, width, height, buffer) | ||
| const imgData = new ImageData(buffer, width, height) | ||
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| return imgData | ||
| } | ||
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| destroy() { | ||
| this.cameraRTT = null | ||
| this.sceneRTT?.clear() | ||
| this.sceneRTT = null | ||
| this.material = null | ||
| this.quad = null | ||
| this.renderer?.dispose() | ||
| this.renderer = null | ||
| this.rtTexture = null | ||
| } | ||
|
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| static createSolidColorTexture (color, width, height) { | ||
| const size = width * height | ||
| const data = new Uint8Array(4 * size) | ||
|
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| const r = Math.floor(color.r * 255) | ||
| const g = Math.floor(color.g * 255) | ||
| const b = Math.floor(color.b * 255) | ||
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| for (let i = 0; i < size; i++) { | ||
| const stride = i * 4 | ||
| data[stride] = r | ||
| data[stride + 1] = g | ||
| data[stride + 2] = b | ||
| data[stride + 3] = 255 | ||
| } | ||
|
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| // used the buffer to create a DataTexture | ||
| const texture = new THREE.DataTexture(data, width, height) | ||
| texture.needsUpdate = true | ||
| return texture | ||
| } | ||
| } |