Revert "WebGPURenderer: Add SpotLight.map support (mrdoob#29989)"

This reverts commit e2e04d3.

Author: sunag

examples/files.json

@@ -335,7 +335,6 @@
 		"webgpu_lights_physical",
 		"webgpu_lights_rectarealight",
 		"webgpu_lights_selective",
-		"webgpu_lights_spotlight",
 		"webgpu_lights_tiled",
 		"webgpu_lines_fat_raycasting",
 		"webgpu_lines_fat_wireframe",

examples/screenshots/webgpu_lights_spotlight.jpg

@@ -2,7 +2,6 @@ import { uniform } from '../core/UniformNode.js';
 import { renderGroup } from '../core/UniformGroupNode.js';
 import { Vector3 } from '../../math/Vector3.js';
 import { cameraViewMatrix } from './Camera.js';
-import { positionWorld } from './Position.js';
 
 let uniformsLib;
 
@@ -18,37 +17,6 @@ function getLightData( light ) {
 
 }
 
-export function lightShadowMatrix( light ) {
-
-	const data = getLightData( light );
-
-	return data.shadowMatrix || ( data.shadowMatrix = uniform( 'mat4' ).setGroup( renderGroup ).onRenderUpdate( () => {
-
-		light.shadow.updateMatrices( light );
-
-		return light.shadow.matrix;
-
-	} ) );
-
-}
-
-export function lightProjectionUV( light ) {
-
-	const data = getLightData( light );
-
-	if ( data.projectionUV === undefined ) {
-
-		const spotLightCoord = lightShadowMatrix( light ).mul( positionWorld );
-
-		data.projectionUV = spotLightCoord.xyz.div( spotLightCoord.w );
-
-
-	}
-
-	return data.projectionUV;
-
-}
-
 export function lightPosition( light ) {
 
 	const data = getLightData( light );

examples/webgpu_lights_spotlight.html

@@ -19,10 +19,12 @@ class AnalyticLightNode extends LightingNode {
 
 		super();
 
+		this.updateType = NodeUpdateType.FRAME;
+
 		this.light = light;
 
 		this.color = new Color();
-		this.colorNode = ( light && light.colorNode ) || uniform( this.color ).setGroup( renderGroup );
+		this.colorNode = uniform( this.color ).setGroup( renderGroup );
 
 		this.baseColorNode = null;
 
@@ -31,8 +33,6 @@ class AnalyticLightNode extends LightingNode {
 
 		this.isAnalyticLightNode = true;
 
-		this.updateType = NodeUpdateType.FRAME;
-
 	}
 
 	getCacheKey() {

src/nodes/accessors/Lights.js

@@ -1,5 +1,6 @@
 import Node from '../core/Node.js';
 import { NodeUpdateType } from '../core/constants.js';
+import { uniform } from '../core/UniformNode.js';
 import { float, vec2, vec3, vec4, If, int, Fn, nodeObject } from '../tsl/TSLBase.js';
 import { reference } from '../accessors/ReferenceNode.js';
 import { texture } from '../accessors/TextureNode.js';
@@ -16,7 +17,6 @@ import { HalfFloatType, LessCompare, RGFormat, VSMShadowMap, WebGPUCoordinateSys
 import { renderGroup } from '../core/UniformGroupNode.js';
 import { viewZToLogarithmicDepth } from '../display/ViewportDepthNode.js';
 import { objectPosition } from '../accessors/Object3DNode.js';
-import { lightShadowMatrix } from '../accessors/Lights.js';
 
 const shadowWorldPosition = /*@__PURE__*/ vec3().toVar( 'shadowWorldPosition' );
 
@@ -383,7 +383,7 @@ class ShadowNode extends Node {
 		const shadowIntensity = reference( 'intensity', 'float', shadow ).setGroup( renderGroup );
 		const normalBias = reference( 'normalBias', 'float', shadow ).setGroup( renderGroup );
 
-		const shadowPosition = lightShadowMatrix( light ).mul( shadowWorldPosition.add( transformedNormalWorld.mul( normalBias ) ) );
+		const shadowPosition = uniform( shadow.matrix ).setGroup( renderGroup ).mul( shadowWorldPosition.add( transformedNormalWorld.mul( normalBias ) ) );
 		const shadowCoord = this.setupShadowCoord( builder, shadowPosition );
 
 		//
@@ -446,9 +446,11 @@ class ShadowNode extends Node {
 
 	renderShadow( frame ) {
 
-		const { shadow, shadowMap } = this;
+		const { shadow, shadowMap, light } = this;
 		const { renderer, scene } = frame;
 
+		shadow.updateMatrices( light );
+
 		shadowMap.setSize( shadow.mapSize.width, shadow.mapSize.height );
 
 		renderer.render( scene, shadow.camera );

src/nodes/lighting/AnalyticLightNode.js

@@ -4,8 +4,7 @@ import { uniform } from '../core/UniformNode.js';
 import { smoothstep } from '../math/MathNode.js';
 import { positionView } from '../accessors/Position.js';
 import { renderGroup } from '../core/UniformGroupNode.js';
-import { lightViewPosition, lightTargetDirection, lightProjectionUV } from '../accessors/Lights.js';
-import { texture } from '../accessors/TextureNode.js';
+import { lightViewPosition, lightTargetDirection } from '../accessors/Lights.js';
 
 class SpotLightNode extends AnalyticLightNode {
 
@@ -71,18 +70,7 @@ class SpotLightNode extends AnalyticLightNode {
 			decayExponent: decayExponentNode
 		} );
 
-		let lightColor = colorNode.mul( spotAttenuation ).mul( lightAttenuation );
-
-		if ( light.map ) {
-
-			const spotLightCoord = lightProjectionUV( light );
-			const projectedTexture = texture( light.map, spotLightCoord.xy ).onRenderUpdate( () => light.map );
-
-			const inSpotLightMap = spotLightCoord.mul( 2. ).sub( 1. ).abs().lessThan( 1. ).all();
-
-			lightColor = inSpotLightMap.select( lightColor.mul( projectedTexture ), lightColor );
-
-		}
+		const lightColor = colorNode.mul( spotAttenuation ).mul( lightAttenuation );
 
 		const reflectedLight = builder.context.reflectedLight;