WebGPURenderer: Fix vertex buffer setup.

examples/jsm/renderers/webgpu/WebGPURenderPipelines.js

@@ -15,6 +15,8 @@ class WebGPURenderPipelines {
 			fragment: new WeakMap()
 		};
 
+		this.shaderAttributes = new WeakMap();
+
 	}
 
 	get( object ) {
@@ -90,6 +92,7 @@ class WebGPURenderPipelines {
 			// vertex buffers
 
 			const vertexBuffers = [];
+			const shaderAttributes = [];
 
 			// Find "layout (location = num) in type name" in vertex shader
 			const regex = /^\s*layout\s*\(\s*location\s*=\s*(?<location>[0-9]+)\s*\)\s*in\s+(?<type>\w+)\s+(?<name>\w+)\s*;/gmi;
@@ -101,6 +104,8 @@ class WebGPURenderPipelines {
 				const arrayStride = this._getArrayStride( shaderAttribute.groups.type );
 				const vertexFormat = this._getVertexFormat( shaderAttribute.groups.type );
 
+				shaderAttributes.push( { name: shaderAttribute.groups.name, slot: shaderLocation } );
+
 				vertexBuffers.push( {
 					arrayStride: arrayStride,
 					attributes: [ { shaderLocation: shaderLocation, offset: 0, format: vertexFormat } ]
@@ -143,6 +148,8 @@ class WebGPURenderPipelines {
 			} );
 
 			this.pipelines.set( object, pipeline );
+			this.shaderAttributes.set( pipeline, shaderAttributes );
+
 
 		}
 
@@ -150,6 +157,12 @@ class WebGPURenderPipelines {
 
 	}
 
+	getShaderAttributes( pipeline ) {
+
+		return this.shaderAttributes.get( pipeline );
+
+	}
+
 	dispose() {
 
 		this.pipelines = new WeakMap();
@@ -254,8 +267,7 @@ const ShaderLib = {
 		vertexShader: `#version 450
 
 		layout(location = 0) in vec3 position;
-		layout(location = 1) in vec3 normal;
-		layout(location = 2) in vec2 uv;
+		layout(location = 1) in vec2 uv;
 
 		layout(location = 0) out vec2 vUv;
 

examples/jsm/renderers/webgpu/WebGPURenderer.js

@@ -559,13 +559,13 @@ class WebGPURenderer {
 
 		if ( hasIndex === true ) {
 
-			this._setupIndexBuffer( passEncoder, index );
+			this._setupIndexBuffer( index, passEncoder );
 
 		}
 
 		// vertex buffers
 
-		this._setupVertexBuffers( passEncoder, geometry.attributes );
+		this._setupVertexBuffers( geometry.attributes, passEncoder, pipeline );
 
 		// draw
 
@@ -593,7 +593,7 @@ class WebGPURenderer {
 
 	}
 
-	_setupIndexBuffer( encoder, index ) {
+	_setupIndexBuffer( index, encoder ) {
 
 		const buffer = this._attributes.get( index ).buffer;
 		const indexFormat = ( index.array instanceof Uint16Array ) ? GPUIndexFormat.Uint16 : GPUIndexFormat.Uint32;
@@ -602,18 +602,23 @@ class WebGPURenderer {
 
 	}
 
-	_setupVertexBuffers( encoder, geometryAttributes ) {
+	_setupVertexBuffers( geometryAttributes, encoder, pipeline ) {
 
-		let slot = 0;
+		const shaderAttributes = this._renderPipelines.getShaderAttributes( pipeline );
 
-		for ( const name in geometryAttributes ) {
+		for ( const shaderAttribute of shaderAttributes ) {
+
+			const name = shaderAttribute.name;
+			const slot = shaderAttribute.slot;
 
 			const attribute = geometryAttributes[ name ];
-			const buffer = this._attributes.get( attribute ).buffer;
 
-			encoder.setVertexBuffer( slot, buffer );
+			if ( attribute !== undefined ) {
+
+				const buffer = this._attributes.get( attribute ).buffer;
+				encoder.setVertexBuffer( slot, buffer );
 
-			slot ++;
+			}
 
 		}