implemenet destroyAttribute()

Author: aardgoose

examples/jsm/renderers/webgl/WebGLBackend.js

@@ -10,6 +10,7 @@ import WebGLTextureUtils from './utils/WebGLTextureUtils.js';
 import WebGLExtensions from './utils/WebGLExtensions.js';
 import WebGLCapabilities from './utils/WebGLCapabilities.js';
 import { DepthFormat } from '../../../../src/constants.js';
+import { attribute } from '../../nodes/Nodes.js';
 
 //
 
@@ -893,9 +894,9 @@ class WebGLBackend extends Backend {
 
 	}
 
-	destroyAttribute( /*attribute*/ ) {
+	destroyAttribute( attribute ) {
 
-		console.warn( 'Abstract class.' );
+		this.attributeUtils.destroyAttribute( attribute );
 
 	}
 

examples/jsm/renderers/webgl/utils/WebGLAttributeUtils.js

@@ -134,6 +134,25 @@ class WebGLAttributeUtils {
 
 	}
 
+	destroyAttribute( attribute ) {
+
+		const backend = this.backend;
+		const { gl } = backend;
+
+		if ( attribute.isInterleavedBufferAttribute ) {
+
+			backend.delete( attribute.data );
+
+		}
+
+		const attributeData = backend.get( attribute );
+
+		gl.deleteBuffer( attributeData.bufferGPU );
+
+		backend.delete( attribute );
+
+	}
+
 	async getArrayBufferAsync( attribute ) {
 
 		const backend = this.backend;