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2b7aae2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | import { EventDispatcher } from '../core/EventDispatcher.js';
import { Texture } from '../textures/Texture.js';
import { LinearFilter } from '../constants.js';
import { Vector4 } from '../math/Vector4.js';
/*
In options, we can specify:
* Texture parameters for an auto-generated target texture
* depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
*/
class WebGLRenderTarget extends EventDispatcher {
constructor(width, height, options = {}) {
super();
this.width = width;
this.height = height;
this.depth = 1;
this.scissor = new Vector4(0, 0, width, height);
this.scissorTest = false;
this.viewport = new Vector4(0, 0, width, height);
this.texture = new Texture(
undefined,
options.mapping,
options.wrapS,
options.wrapT,
options.magFilter,
options.minFilter,
options.format,
options.type,
options.anisotropy,
options.encoding
);
this.texture.isRenderTargetTexture = true;
this.texture.image = { width: width, height: height, depth: 1 };
this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
this.texture.internalFormat = options.internalFormat !== undefined ? options.internalFormat : null;
this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false;
this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
}
setTexture(texture) {
texture.image = {
width: this.width,
height: this.height,
depth: this.depth,
};
this.texture = texture;
}
setSize(width, height, depth = 1) {
if (this.width !== width || this.height !== height || this.depth !== depth) {
this.width = width;
this.height = height;
this.depth = depth;
this.texture.image.width = width;
this.texture.image.height = height;
this.texture.image.depth = depth;
this.dispose();
}
this.viewport.set(0, 0, width, height);
this.scissor.set(0, 0, width, height);
}
clone() {
return new this.constructor().copy(this);
}
copy(source) {
this.width = source.width;
this.height = source.height;
this.depth = source.depth;
this.viewport.copy(source.viewport);
this.texture = source.texture.clone();
// ensure image object is not shared, see #20328
this.texture.image = Object.assign({}, source.texture.image);
this.depthBuffer = source.depthBuffer;
this.stencilBuffer = source.stencilBuffer;
this.depthTexture = source.depthTexture;
return this;
}
dispose() {
this.dispatchEvent({ type: 'dispose' });
}
}
WebGLRenderTarget.prototype.isWebGLRenderTarget = true;
export { WebGLRenderTarget };
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