first commit

2025-12-10 12:32:12 +00:00
commit adbbf6bf50
3442 changed files with 2725681 additions and 0 deletions
--- a/web-app/node_modules/three/examples/jsm/tsl/lighting/TiledLightsNode.js
+++ b/web-app/node_modules/three/examples/jsm/tsl/lighting/TiledLightsNode.js
@@ -0,0 +1,392 @@
+import {
+	storageObject, nodeProxy, int, float, vec2, ivec2, ivec4, uniform, Break, Loop,
+	Fn, If, Return, textureLoad, instanceIndex, screenCoordinate, directPointLight
+} from 'three/tsl';
+
+import { DataTexture, FloatType, LightsNode, NodeUpdateType, RGBAFormat, StorageBufferAttribute, Vector2, Vector3 } from 'three';
+
+export const circleIntersectsAABB = /*@__PURE__*/ Fn( ( [ circleCenter, radius, minBounds, maxBounds ] ) => {
+
+	// Find the closest point on the AABB to the circle's center using method chaining
+	const closestX = minBounds.x.max( circleCenter.x.min( maxBounds.x ) );
+	const closestY = minBounds.y.max( circleCenter.y.min( maxBounds.y ) );
+
+	// Compute the distance between the circle's center and the closest point
+	const distX = circleCenter.x.sub( closestX );
+	const distY = circleCenter.y.sub( closestY );
+
+	// Calculate the squared distance
+	const distSquared = distX.mul( distX ).add( distY.mul( distY ) );
+
+	return distSquared.lessThanEqual( radius.mul( radius ) );
+
+} ).setLayout( {
+	name: 'circleIntersectsAABB',
+	type: 'bool',
+	inputs: [
+		{ name: 'circleCenter', type: 'vec2' },
+		{ name: 'radius', type: 'float' },
+		{ name: 'minBounds', type: 'vec2' },
+		{ name: 'maxBounds', type: 'vec2' }
+	]
+} );
+
+const _vector3 = /*@__PURE__*/ new Vector3();
+const _size = /*@__PURE__*/ new Vector2();
+
+class TiledLightsNode extends LightsNode {
+
+	static get type() {
+
+		return 'TiledLightsNode';
+
+	}
+
+	constructor( maxLights = 1024, tileSize = 32 ) {
+
+		super();
+
+		this.materialLights = [];
+		this.tiledLights = [];
+
+		this.maxLights = maxLights;
+		this.tileSize = tileSize;
+
+		this.bufferSize = null;
+		this.lightIndexes = null;
+		this.screenTileIndex = null;
+		this.compute = null;
+		this.lightsTexture = null;
+
+		this.lightsCount = uniform( 0, 'int' );
+		this.tileLightCount = 8;
+		this.screenSize = uniform( new Vector2() );
+		this.cameraProjectionMatrix = uniform( 'mat4' );
+		this.cameraViewMatrix = uniform( 'mat4' );
+
+		this.updateBeforeType = NodeUpdateType.RENDER;
+
+	}
+
+	updateLightsTexture() {
+
+		const { lightsTexture, tiledLights } = this;
+
+		const data = lightsTexture.image.data;
+		const lineSize = lightsTexture.image.width * 4;
+
+		this.lightsCount.value = tiledLights.length;
+
+		for ( let i = 0; i < tiledLights.length; i ++ ) {
+
+			const light = tiledLights[ i ];
+
+			// world position
+
+			_vector3.setFromMatrixPosition( light.matrixWorld );
+
+			// store data
+
+			const offset = i * 4;
+
+			data[ offset + 0 ] = _vector3.x;
+			data[ offset + 1 ] = _vector3.y;
+			data[ offset + 2 ] = _vector3.z;
+			data[ offset + 3 ] = light.distance;
+
+			data[ lineSize + offset + 0 ] = light.color.r * light.intensity;
+			data[ lineSize + offset + 1 ] = light.color.g * light.intensity;
+			data[ lineSize + offset + 2 ] = light.color.b * light.intensity;
+			data[ lineSize + offset + 3 ] = light.decay;
+
+		}
+
+		lightsTexture.needsUpdate = true;
+
+	}
+
+	updateBefore( frame ) {
+
+		const { renderer, camera } = frame;
+
+		this.updateProgram( renderer );
+
+		this.updateLightsTexture( camera );
+
+		this.cameraProjectionMatrix.value = camera.projectionMatrix;
+		this.cameraViewMatrix.value = camera.matrixWorldInverse;
+
+		renderer.getDrawingBufferSize( _size );
+		this.screenSize.value.copy( _size );
+
+		renderer.compute( this.compute );
+
+	}
+
+	setLights( lights ) {
+
+		const { tiledLights, materialLights } = this;
+
+		let materialindex = 0;
+		let tiledIndex = 0;
+
+		for ( const light of lights ) {
+
+			if ( light.isPointLight === true ) {
+
+				tiledLights[ tiledIndex ++ ] = light;
+
+			} else {
+
+				materialLights[ materialindex ++ ] = light;
+
+			}
+
+		}
+
+		materialLights.length = materialindex;
+		tiledLights.length = tiledIndex;
+
+		return super.setLights( materialLights );
+
+	}
+
+	getBlock( block = 0 ) {
+
+		return this.lightIndexes.element( this.screenTileIndex.mul( int( 2 ).add( int( block ) ) ) );
+
+	}
+
+	getTile( element ) {
+
+		element = int( element );
+
+		const stride = int( 4 );
+		const tileOffset = element.div( stride );
+		const tileIndex = this.screenTileIndex.mul( int( 2 ) ).add( tileOffset );
+
+		return this.lightIndexes.element( tileIndex ).element( element.modInt( stride ) );
+
+	}
+
+	getLightData( index ) {
+
+		index = int( index );
+
+		const dataA = textureLoad( this.lightsTexture, ivec2( index, 0 ) );
+		const dataB = textureLoad( this.lightsTexture, ivec2( index, 1 ) );
+
+		const position = dataA.xyz;
+		const viewPosition = this.cameraViewMatrix.mul( position );
+		const distance = dataA.w;
+		const color = dataB.rgb;
+		const decay = dataB.w;
+
+		return {
+			position,
+			viewPosition,
+			distance,
+			color,
+			decay
+		};
+
+	}
+
+	setupLights( builder, lightNodes ) {
+
+		this.updateProgram( builder.renderer );
+
+		//
+
+		const lightingModel = builder.context.reflectedLight;
+
+		// force declaration order, before of the loop
+		lightingModel.directDiffuse.append();
+		lightingModel.directSpecular.append();
+
+		Fn( () => {
+
+			Loop( this.tileLightCount, ( { i } ) => {
+
+				const lightIndex = this.getTile( i );
+
+				If( lightIndex.equal( int( 0 ) ), () => {
+
+					Break();
+
+				} );
+
+				const { color, decay, viewPosition, distance } = this.getLightData( lightIndex.sub( 1 ) );
+
+				directPointLight( {
+					color,
+					lightViewPosition: viewPosition,
+					cutoffDistance: distance,
+					decayExponent: decay
+				} ).append();
+
+			} );
+
+		} )().append();
+
+		// others lights
+
+		super.setupLights( builder, lightNodes );
+
+	}
+
+	getBufferFitSize( value ) {
+
+		const multiple = this.tileSize;
+
+		return Math.ceil( value / multiple ) * multiple;
+
+	}
+
+	setSize( width, height ) {
+
+		width = this.getBufferFitSize( width );
+		height = this.getBufferFitSize( height );
+
+		if ( ! this.bufferSize || this.bufferSize.width !== width || this.bufferSize.height !== height ) {
+
+			this.create( width, height );
+
+		}
+
+		return this;
+
+	}
+
+	updateProgram( renderer ) {
+
+		renderer.getDrawingBufferSize( _size );
+
+		const width = this.getBufferFitSize( _size.width );
+		const height = this.getBufferFitSize( _size.height );
+
+		if ( this.bufferSize === null ) {
+
+			this.create( width, height );
+
+		} else if ( this.bufferSize.width !== width || this.bufferSize.height !== height ) {
+
+			this.create( width, height );
+
+		}
+
+	}
+
+	create( width, height ) {
+
+		const { tileSize, maxLights } = this;
+
+		const bufferSize = new Vector2( width, height );
+		const lineSize = Math.floor( bufferSize.width / tileSize );
+		const count = Math.floor( ( bufferSize.width * bufferSize.height ) / tileSize );
+
+		// buffers
+
+		const lightsData = new Float32Array( maxLights * 4 * 2 ); // 2048 lights, 4 elements(rgba), 2 components, 1 component per line (position, distance, color, decay)
+		const lightsTexture = new DataTexture( lightsData, lightsData.length / 8, 2, RGBAFormat, FloatType );
+
+		const lightIndexesArray = new Int32Array( count * 4 * 2 );
+		const lightIndexesAttribute = new StorageBufferAttribute( lightIndexesArray, 4 );
+		const lightIndexes = storageObject( lightIndexesAttribute, 'ivec4', lightIndexesAttribute.count ).label( 'lightIndexes' );
+
+		// compute
+
+		const getBlock = ( index ) => {
+
+			const tileIndex = instanceIndex.mul( int( 2 ) ).add( int( index ) );
+
+			return lightIndexes.element( tileIndex );
+
+		};
+
+		const getTile = ( elementIndex ) => {
+
+			elementIndex = int( elementIndex );
+
+			const stride = int( 4 );
+			const tileOffset = elementIndex.div( stride );
+			const tileIndex = instanceIndex.mul( int( 2 ) ).add( tileOffset );
+
+			return lightIndexes.element( tileIndex ).element( elementIndex.modInt( stride ) );
+
+		};
+
+		const compute = Fn( () => {
+
+			const { cameraProjectionMatrix, bufferSize, screenSize } = this;
+
+			const tiledBufferSize = bufferSize.clone().divideScalar( tileSize ).floor();
+
+			const tileScreen = vec2(
+				instanceIndex.modInt( tiledBufferSize.width ),
+				instanceIndex.div( tiledBufferSize.width )
+			).mul( tileSize ).div( screenSize );
+
+			const blockSize = float( tileSize ).div( screenSize );
+			const minBounds = tileScreen;
+			const maxBounds = minBounds.add( blockSize );
+
+			const index = int( 0 ).toVar();
+
+			getBlock( 0 ).assign( ivec4( 0 ) );
+			getBlock( 1 ).assign( ivec4( 0 ) );
+
+			Loop( this.maxLights, ( { i } ) => {
+
+				If( index.greaterThanEqual( this.tileLightCount ).or( int( i ).greaterThanEqual( int( this.lightsCount ) ) ), () => {
+
+					Return();
+
+				} );
+
+				const { viewPosition, distance } = this.getLightData( i );
+
+				const projectedPosition = cameraProjectionMatrix.mul( viewPosition );
+				const ndc = projectedPosition.div( projectedPosition.w );
+				const screenPosition = ndc.xy.mul( 0.5 ).add( 0.5 ).flipY();
+
+				const distanceFromCamera = viewPosition.z;
+				const pointRadius = distance.div( distanceFromCamera );
+
+				If( circleIntersectsAABB( screenPosition, pointRadius, minBounds, maxBounds ), () => {
+
+					getTile( index ).assign( i.add( int( 1 ) ) );
+					index.addAssign( int( 1 ) );
+
+				} );
+
+			} );
+
+		} )().compute( count );
+
+		// screen coordinate lighting indexes
+
+		const screenTile = screenCoordinate.div( tileSize ).floor().toVar();
+		const screenTileIndex = screenTile.x.add( screenTile.y.mul( lineSize ) );
+
+		// assigns
+
+		this.bufferSize = bufferSize;
+		this.lightIndexes = lightIndexes;
+		this.screenTileIndex = screenTileIndex;
+		this.compute = compute;
+		this.lightsTexture = lightsTexture;
+
+	}
+
+	get hasLights() {
+
+		return super.hasLights || this.tiledLights.length > 0;
+
+	}
+
+}
+
+export default TiledLightsNode;
+
+export const tiledLights = /*@__PURE__*/ nodeProxy( TiledLightsNode );