Add portal web simulator, SPI bridges, and Pico firmware updates.

Bring the five-panel hex portal online with a browser 3D/schematic preview, Pi SPI backends, and renamed multi-panel Pico UDP firmware.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/vendor/postprocessing/RenderPass.js

@@ -0,0 +1,99 @@
+import {
+	Color
+} from 'three';
+import { Pass } from './Pass.js';
+
+class RenderPass extends Pass {
+
+	constructor( scene, camera, overrideMaterial = null, clearColor = null, clearAlpha = null ) {
+
+		super();
+
+		this.scene = scene;
+		this.camera = camera;
+
+		this.overrideMaterial = overrideMaterial;
+
+		this.clearColor = clearColor;
+		this.clearAlpha = clearAlpha;
+
+		this.clear = true;
+		this.clearDepth = false;
+		this.needsSwap = false;
+		this._oldClearColor = new Color();
+
+	}
+
+	render( renderer, writeBuffer, readBuffer /*, deltaTime, maskActive */ ) {
+
+		const oldAutoClear = renderer.autoClear;
+		renderer.autoClear = false;
+
+		let oldClearAlpha, oldOverrideMaterial;
+
+		if ( this.overrideMaterial !== null ) {
+
+			oldOverrideMaterial = this.scene.overrideMaterial;
+
+			this.scene.overrideMaterial = this.overrideMaterial;
+
+		}
+
+		if ( this.clearColor !== null ) {
+
+			renderer.getClearColor( this._oldClearColor );
+			renderer.setClearColor( this.clearColor, renderer.getClearAlpha() );
+
+		}
+
+		if ( this.clearAlpha !== null ) {
+
+			oldClearAlpha = renderer.getClearAlpha();
+			renderer.setClearAlpha( this.clearAlpha );
+
+		}
+
+		if ( this.clearDepth == true ) {
+
+			renderer.clearDepth();
+
+		}
+
+		renderer.setRenderTarget( this.renderToScreen ? null : readBuffer );
+
+		if ( this.clear === true ) {
+
+			// TODO: Avoid using autoClear properties, see https://github.com/mrdoob/three.js/pull/15571#issuecomment-465669600
+			renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );
+
+		}
+
+		renderer.render( this.scene, this.camera );
+
+		// restore
+
+		if ( this.clearColor !== null ) {
+
+			renderer.setClearColor( this._oldClearColor );
+
+		}
+
+		if ( this.clearAlpha !== null ) {
+
+			renderer.setClearAlpha( oldClearAlpha );
+
+		}
+
+		if ( this.overrideMaterial !== null ) {
+
+			this.scene.overrideMaterial = oldOverrideMaterial;
+
+		}
+
+		renderer.autoClear = oldAutoClear;
+
+	}
+
+}
+
+export { RenderPass };