WebGPURenderer: Array-Based RenderTarget Refactor (#30959)

* ShadowNode: Inherit camera.layers only if shadow.layers is not set

* Fix layers check

* invert condition

* restore after render

* move array creation to module scope

* WebGPURenderer: Refactor Texture Arrays

* fix conflicts

* cleanup and fix multiview

* revert webgpu pipeline utils

* Fix StorageTexture depth

* fix fbo setSize

* update build

* fix xrmanager depth missing arg

* bump build

* revert build

Author: RenaudRohlinger

examples/jsm/helpers/TextureHelperGPU.js

@@ -51,7 +51,7 @@ class TextureHelper extends Mesh {
 
 			colorNode = texture3D( texture ).sample( uvw );
 
-		} else if ( texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {
+		} else if ( texture.isArrayTexture || texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {
 
 			colorNode = textureNode( texture ).sample( uvw.xy ).depth( uvw.z );
 
@@ -100,7 +100,7 @@ function getImageCount( texture ) {
 
 		return 6;
 
-	} else if ( texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {
+	} else if ( texture.isArrayTexture || texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {
 
 		return texture.image.depth;
 
@@ -122,7 +122,7 @@ function getAlpha( texture ) {
 
 		return 1;
 
-	} else if ( texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {
+	} else if ( texture.isArrayTexture || texture.isDataArrayTexture || texture.isCompressedArrayTexture ) {
 
 		return Math.max( 1 / texture.image.depth, 0.25 );
 
@@ -192,7 +192,7 @@ function createSliceGeometry( texture, width, height, depth ) {
 			const v = texture.flipY ? uv.getY( j ) : 1 - uv.getY( j );
 			const w = sliceCount === 1
 				? 1
-				: texture.isDataArrayTexture || texture.isCompressedArrayTexture
+				: texture.isArrayTexture || texture.isDataArrayTexture || texture.isCompressedArrayTexture
 					? i
 					: i / ( sliceCount - 1 );
 

examples/jsm/tsl/shadows/TileShadowNode.js

@@ -4,7 +4,7 @@ import {
 	ShadowBaseNode,
 	Plane,
 	Line3,
-	DepthArrayTexture,
+	DepthTexture,
 	LessCompare,
 	Vector2,
 	RedFormat,
@@ -159,10 +159,10 @@ class TileShadowNode extends ShadowBaseNode {
 		// Clear existing lights/nodes if re-initializing
 		this.disposeLightsAndNodes();
 
-		const depthTexture = new DepthArrayTexture( shadowWidth, shadowHeight, tileCount );
+		const depthTexture = new DepthTexture( shadowWidth, shadowHeight, undefined, undefined, undefined, undefined, undefined, undefined, undefined, undefined, tileCount );
 		depthTexture.compareFunction = LessCompare;
 		depthTexture.name = 'ShadowDepthArrayTexture';
-		const shadowMap = builder.createRenderTargetArray( shadowWidth, shadowHeight, tileCount, { format: RedFormat } );
+		const shadowMap = builder.createRenderTarget( shadowWidth, shadowHeight, { format: RedFormat, depth: tileCount } );
 		shadowMap.depthTexture = depthTexture;
 		shadowMap.texture.name = 'ShadowTexture';
 		this.shadowMap = shadowMap;

examples/webgpu_rendertarget_2d-array_3d.html

@@ -211,8 +211,9 @@
 						materialQuad.depthTest = false;
 						materialQuad.outputNode = vec4( texture( mapArray ).depth( uZCoord ).rgb, 1 );
 
-						const fboArray = new THREE.RenderTargetArray( size.width, size.height, size.depth, {
+						const fboArray = new THREE.RenderTarget( size.width, size.height, {
 							depthBuffer: false,
+							depth: size.depth
 						} );
 						fboArray.texture.name = 'RenderTargetArray';
 

examples/webgpu_shadowmap_array.html

@@ -45,7 +45,7 @@
 			async function init() {
 
 				// Renderer setup
-				renderer = new THREE.WebGPURenderer( { antialias: true, forceWebGL: false } );
+				renderer = new THREE.WebGPURenderer( { antialias: true } );
 				renderer.setPixelRatio( window.devicePixelRatio );
 				renderer.setSize( window.innerWidth, window.innerHeight );
 				renderer.setAnimationLoop( animate );
@@ -87,8 +87,7 @@
 				// Set up the tile shadow mapping
 				const tsm = new TileShadowNode( dirLight, {
 					tilesX: 2,
-					tilesY: 2,
-					debug: true
+					tilesY: 2
 				} );
 
 

src/Three.Core.js

@@ -34,7 +34,6 @@ export { CompressedCubeTexture } from './textures/CompressedCubeTexture.js';
 export { CubeTexture } from './textures/CubeTexture.js';
 export { CanvasTexture } from './textures/CanvasTexture.js';
 export { DepthTexture } from './textures/DepthTexture.js';
-export { DepthArrayTexture } from './textures/DepthArrayTexture.js';
 export { Texture } from './textures/Texture.js';
 export * from './geometries/Geometries.js';
 export * from './materials/Materials.js';
@@ -89,7 +88,6 @@ export { AnimationClip } from './animation/AnimationClip.js';
 export { AnimationAction } from './animation/AnimationAction.js';
 export { RenderTarget } from './core/RenderTarget.js';
 export { RenderTarget3D } from './core/RenderTarget3D.js';
-export { RenderTargetArray } from './core/RenderTargetArray.js';
 export { Uniform } from './core/Uniform.js';
 export { UniformsGroup } from './core/UniformsGroup.js';
 export { InstancedBufferGeometry } from './core/InstancedBufferGeometry.js';

src/core/RenderTarget.js

@@ -35,6 +35,7 @@ class RenderTarget extends EventDispatcher {
 	 * @property {?Texture} [depthTexture=null] - Reference to a depth texture.
 	 * @property {number} [samples=0] - The MSAA samples count.
 	 * @property {number} [count=1] - Defines the number of color attachments . Must be at least `1`.
+	 * @property {number} [depth=1] - The texture depth.
 	 * @property {boolean} [multiview=false] - Whether this target is used for multiview rendering.
 	 */
 
@@ -49,6 +50,21 @@ class RenderTarget extends EventDispatcher {
 
 		super();
 
+		options = Object.assign( {
+			generateMipmaps: false,
+			internalFormat: null,
+			minFilter: LinearFilter,
+			depthBuffer: true,
+			stencilBuffer: false,
+			resolveDepthBuffer: true,
+			resolveStencilBuffer: true,
+			depthTexture: null,
+			samples: 0,
+			count: 1,
+			depth: 1,
+			multiview: false
+		}, options );
+
 		/**
 		 * This flag can be used for type testing.
 		 *
@@ -80,7 +96,7 @@ class RenderTarget extends EventDispatcher {
 		 * @type {number}
 		 * @default 1
 		 */
-		this.depth = options.depth ? options.depth : 1;
+		this.depth = options.depth;
 
 		/**
 		 * A rectangular area inside the render target's viewport. Fragments that are
@@ -108,21 +124,7 @@ class RenderTarget extends EventDispatcher {
 		 */
 		this.viewport = new Vector4( 0, 0, width, height );
 
-		const image = { width: width, height: height, depth: this.depth };
-
-		options = Object.assign( {
-			generateMipmaps: false,
-			internalFormat: null,
-			minFilter: LinearFilter,
-			depthBuffer: true,
-			stencilBuffer: false,
-			resolveDepthBuffer: true,
-			resolveStencilBuffer: true,
-			depthTexture: null,
-			samples: 0,
-			count: 1,
-			multiview: false
-		}, options );
+		const image = { width: width, height: height, depth: options.depth };
 
 		const texture = new Texture( image, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.colorSpace );
 
@@ -263,6 +265,12 @@ class RenderTarget extends EventDispatcher {
 				this.textures[ i ].image.height = height;
 				this.textures[ i ].image.depth = depth;
 
+				if ( this.textures[ i ].image.depth > 1 ) {
+
+					this.textures[ i ].isArrayTexture = true;
+
+				}
+
 			}
 
 			this.dispose();

src/core/RenderTargetArray.js

@@ -98,6 +98,8 @@ class StorageTextureNode extends TextureNode {
 		const properties = builder.getNodeProperties( this );
 		properties.storeNode = this.storeNode;
 
+		return properties;
+
 	}
 
 	/**
@@ -181,18 +183,27 @@ class StorageTextureNode extends TextureNode {
 
 		const properties = builder.getNodeProperties( this );
 
-		const { uvNode, storeNode } = properties;
+		const { uvNode, storeNode, depthNode } = properties;
 
 		const textureProperty = super.generate( builder, 'property' );
 		const uvSnippet = uvNode.build( builder, 'uvec2' );
 		const storeSnippet = storeNode.build( builder, 'vec4' );
+		const depthSnippet = depthNode ? depthNode.build( builder, 'int' ) : null;
 
-		const snippet = builder.generateTextureStore( builder, textureProperty, uvSnippet, storeSnippet );
+		const snippet = builder.generateTextureStore( builder, textureProperty, uvSnippet, depthSnippet, storeSnippet );
 
 		builder.addLineFlowCode( snippet, this );
 
 	}
 
+	clone() {
+
+		const newNode = super.clone();
+		newNode.storeNode = this.storeNode;
+		return newNode;
+
+	}
+
 }
 
 export default StorageTextureNode;

src/nodes/accessors/StorageTextureNode.js

@@ -26,7 +26,6 @@ import BindGroup from '../../renderers/common/BindGroup.js';
 
 import { REVISION, IntType, UnsignedIntType, LinearFilter, LinearMipmapNearestFilter, NearestMipmapLinearFilter, LinearMipmapLinearFilter } from '../../constants.js';
 import { RenderTarget } from '../../core/RenderTarget.js';
-import { RenderTargetArray } from '../../core/RenderTargetArray.js';
 import { Color } from '../../math/Color.js';
 import { Vector2 } from '../../math/Vector2.js';
 import { Vector3 } from '../../math/Vector3.js';
@@ -458,22 +457,6 @@ class NodeBuilder {
 
 	}
 
-	/**
-	 * Factory method for creating an instance of {@link RenderTargetArray} with the given
-	 * dimensions and options.
-	 *
-	 * @param {number} width - The width of the render target.
-	 * @param {number} height - The height of the render target.
-	 * @param {number} depth - The depth of the render target.
-	 * @param {Object} options - The options of the render target.
-	 * @return {RenderTargetArray} The render target.
-	 */
-	createRenderTargetArray( width, height, depth, options ) {
-
-		return new RenderTargetArray( width, height, depth, options );
-
-	}
-
 	/**
 	 * Factory method for creating an instance of {@link CubeRenderTarget} with the given
 	 * dimensions and options.

src/nodes/core/NodeBuilder.js

@@ -24,7 +24,7 @@ export const BasicShadowFilter = /*@__PURE__*/ Fn( ( { depthTexture, shadowCoord
 
 	let basic = texture( depthTexture, shadowCoord.xy ).label( 't_basic' );
 
-	if ( depthTexture.isDepthArrayTexture ) {
+	if ( depthTexture.isArrayTexture ) {
 
 		basic = basic.depth( depthLayer );
 
@@ -50,7 +50,7 @@ export const PCFShadowFilter = /*@__PURE__*/ Fn( ( { depthTexture, shadowCoord,
 
 		let depth = texture( depthTexture, uv );
 
-		if ( depthTexture.isDepthArrayTexture ) {
+		if ( depthTexture.isArrayTexture ) {
 
 			depth = depth.depth( depthLayer );
 
@@ -111,7 +111,7 @@ export const PCFSoftShadowFilter = /*@__PURE__*/ Fn( ( { depthTexture, shadowCoo
 
 		let depth = texture( depthTexture, uv );
 
-		if ( depthTexture.isDepthArrayTexture ) {
+		if ( depthTexture.isArrayTexture ) {
 
 			depth = depth.depth( depthLayer );
 
@@ -189,7 +189,7 @@ export const VSMShadowFilter = /*@__PURE__*/ Fn( ( { depthTexture, shadowCoord,
 
 	let distribution = texture( depthTexture ).sample( shadowCoord.xy );
 
-	if ( depthTexture.isDepthArrayTexture || depthTexture.isDataArrayTexture ) {
+	if ( depthTexture.isArrayTexture ) {
 
 		distribution = distribution.depth( depthLayer );