https://github.com/WWBN/AVideo/issues/8713

node_modules/three/examples/jsm/postprocessing/TAARenderPass.js

@@ -0,0 +1,145 @@
+import {
+	WebGLRenderTarget
+} from '../../../build/three.module.js';
+import { SSAARenderPass } from '../postprocessing/SSAARenderPass.js';
+
+/**
+ *
+ * Temporal Anti-Aliasing Render Pass
+ *
+ * When there is no motion in the scene, the TAA render pass accumulates jittered camera samples across frames to create a high quality anti-aliased result.
+ *
+ * References:
+ *
+ * TODO: Add support for motion vector pas so that accumulation of samples across frames can occur on dynamics scenes.
+ *
+ */
+
+var TAARenderPass = function ( scene, camera, clearColor, clearAlpha ) {
+
+	if ( SSAARenderPass === undefined ) {
+
+		console.error( 'THREE.TAARenderPass relies on SSAARenderPass' );
+
+	}
+
+	SSAARenderPass.call( this, scene, camera, clearColor, clearAlpha );
+
+	this.sampleLevel = 0;
+	this.accumulate = false;
+
+};
+
+TAARenderPass.JitterVectors = SSAARenderPass.JitterVectors;
+
+TAARenderPass.prototype = Object.assign( Object.create( SSAARenderPass.prototype ), {
+
+	constructor: TAARenderPass,
+
+	render: function ( renderer, writeBuffer, readBuffer, deltaTime ) {
+
+		if ( ! this.accumulate ) {
+
+			SSAARenderPass.prototype.render.call( this, renderer, writeBuffer, readBuffer, deltaTime );
+
+			this.accumulateIndex = - 1;
+			return;
+
+		}
+
+		var jitterOffsets = TAARenderPass.JitterVectors[ 5 ];
+
+		if ( ! this.sampleRenderTarget ) {
+
+			this.sampleRenderTarget = new WebGLRenderTarget( readBuffer.width, readBuffer.height, this.params );
+			this.sampleRenderTarget.texture.name = 'TAARenderPass.sample';
+
+		}
+
+		if ( ! this.holdRenderTarget ) {
+
+			this.holdRenderTarget = new WebGLRenderTarget( readBuffer.width, readBuffer.height, this.params );
+			this.holdRenderTarget.texture.name = 'TAARenderPass.hold';
+
+		}
+
+		if ( this.accumulate && this.accumulateIndex === - 1 ) {
+
+			SSAARenderPass.prototype.render.call( this, renderer, this.holdRenderTarget, readBuffer, deltaTime );
+
+			this.accumulateIndex = 0;
+
+		}
+
+		var autoClear = renderer.autoClear;
+		renderer.autoClear = false;
+
+		var sampleWeight = 1.0 / ( jitterOffsets.length );
+
+		if ( this.accumulateIndex >= 0 && this.accumulateIndex < jitterOffsets.length ) {
+
+			this.copyUniforms[ 'opacity' ].value = sampleWeight;
+			this.copyUniforms[ 'tDiffuse' ].value = writeBuffer.texture;
+
+			// render the scene multiple times, each slightly jitter offset from the last and accumulate the results.
+			var numSamplesPerFrame = Math.pow( 2, this.sampleLevel );
+			for ( var i = 0; i < numSamplesPerFrame; i ++ ) {
+
+				var j = this.accumulateIndex;
+				var jitterOffset = jitterOffsets[ j ];
+
+				if ( this.camera.setViewOffset ) {
+
+					this.camera.setViewOffset( readBuffer.width, readBuffer.height,
+						jitterOffset[ 0 ] * 0.0625, jitterOffset[ 1 ] * 0.0625, // 0.0625 = 1 / 16
+						readBuffer.width, readBuffer.height );
+
+				}
+
+				renderer.setRenderTarget( writeBuffer );
+				renderer.clear();
+				renderer.render( this.scene, this.camera );
+
+				renderer.setRenderTarget( this.sampleRenderTarget );
+				if ( this.accumulateIndex === 0 ) renderer.clear();
+				this.fsQuad.render( renderer );
+
+				this.accumulateIndex ++;
+
+				if ( this.accumulateIndex >= jitterOffsets.length ) break;
+
+			}
+
+			if ( this.camera.clearViewOffset ) this.camera.clearViewOffset();
+
+		}
+
+		var accumulationWeight = this.accumulateIndex * sampleWeight;
+
+		if ( accumulationWeight > 0 ) {
+
+			this.copyUniforms[ 'opacity' ].value = 1.0;
+			this.copyUniforms[ 'tDiffuse' ].value = this.sampleRenderTarget.texture;
+			renderer.setRenderTarget( writeBuffer );
+			renderer.clear();
+			this.fsQuad.render( renderer );
+
+		}
+
+		if ( accumulationWeight < 1.0 ) {
+
+			this.copyUniforms[ 'opacity' ].value = 1.0 - accumulationWeight;
+			this.copyUniforms[ 'tDiffuse' ].value = this.holdRenderTarget.texture;
+			renderer.setRenderTarget( writeBuffer );
+			if ( accumulationWeight === 0 ) renderer.clear();
+			this.fsQuad.render( renderer );
+
+		}
+
+		renderer.autoClear = autoClear;
+
+	}
+
+} );
+
+export { TAARenderPass };