Layer-based nodes redesign, just the basics so far (#1362)

* Redesign the nodes

* Basic vertical stacking syntax sugar

* Fix node connections

* Primary output and line thickness

---------

Co-authored-by: 0hypercube <0hypercube@gmail.com>

Cargo.toml

@@ -28,6 +28,10 @@ resolver = "2"
 exclude = ["node-graph/gpu-compiler"]
 
 [workspace.dependencies]
+# We are using this fork because:
+# - They specify glam=0.22 whereas we use glam=0.24 so the encoding doesn't work.
+# - Their current release doesn't allow doc comments and produces a compile error.
+# See: https://github.com/GraphiteEditor/Graphite/pull/1346/files/a2206401b5b4cf669e71df57f6c95c67336802c8#r1280201659
 specta = { git = "https://github.com/0HyperCube/specta.git", rev = "c47a22b4c0863d27bc47529f300de3969480c66d", features = [
 	"glam",
 ] }

editor/src/messages/portfolio/document/node_graph/graph_operation_message_handler.rs

@@ -307,9 +307,9 @@ impl<'a> ModifyInputsContext<'a> {
 		let [mut old_bounds_min, mut old_bounds_max] = [DVec2::ZERO, DVec2::ONE];
 		let [mut new_bounds_min, mut new_bounds_max] = [DVec2::ZERO, DVec2::ONE];
 
-		self.modify_inputs("Path Generator", false, |inputs| {
+		self.modify_inputs("Shape", false, |inputs| {
 			let [subpaths, mirror_angle_groups] = inputs.as_mut_slice() else {
-				panic!("Path generator does not have subpath and mirror angle inputs");
+				panic!("Shape does not have subpath and mirror angle inputs");
 			};
 
 			let NodeInput::Value {

editor/src/messages/portfolio/document/node_graph/node_graph_message_handler.rs

@@ -80,7 +80,10 @@ pub struct FrontendNode {
 	pub primary_input: Option<FrontendGraphDataType>,
 	#[serde(rename = "exposedInputs")]
 	pub exposed_inputs: Vec<NodeGraphInput>,
-	pub outputs: Vec<NodeGraphOutput>, // TODO: Break this apart into `primary_output` and `exposed_outputs`
+	#[serde(rename = "primaryOutput")]
+	pub primary_output: Option<NodeGraphOutput>,
+	#[serde(rename = "exposedOutputs")]
+	pub exposed_outputs: Vec<NodeGraphOutput>,
 	pub position: (i32, i32),
 	pub disabled: bool,
 	pub previewed: bool,
@@ -336,14 +339,11 @@ impl NodeGraphMessageHandler {
 				})
 				.collect();
 
-			let outputs = node_type
-				.outputs
-				.iter()
-				.map(|output_type| NodeGraphOutput {
-					data_type: output_type.data_type,
-					name: output_type.name.to_string(),
-				})
-				.collect();
+			let mut outputs = node_type.outputs.iter().map(|output_type| NodeGraphOutput {
+				data_type: output_type.data_type,
+				name: output_type.name.to_string(),
+			});
+			let primary_output = outputs.next();
 
 			let graph_identifier = GraphIdentifier::new(layer_id);
 			let thumbnail_svg = executor.thumbnails.get(&graph_identifier).and_then(|thumbnails| thumbnails.get(id)).map(|svg| svg.to_string());
@@ -353,7 +353,8 @@ impl NodeGraphMessageHandler {
 				display_name: node.name.clone(),
 				primary_input,
 				exposed_inputs,
-				outputs,
+				primary_output,
+				exposed_outputs: outputs.collect::<Vec<_>>(),
 				position: node.metadata.position.into(),
 				previewed: network.outputs_contain(*id),
 				disabled: network.disabled.contains(id),

editor/src/messages/portfolio/document/node_graph/node_graph_message_handler/document_node_types.rs

@@ -1662,7 +1662,7 @@ fn static_nodes() -> Vec<DocumentNodeType> {
 			..Default::default()
 		},
 		DocumentNodeType {
-			name: "Path Generator",
+			name: "Shape",
 			category: "Vector",
 			identifier: NodeImplementation::proto("graphene_core::vector::generator_nodes::PathGenerator<_>"),
 			inputs: vec![
@@ -1998,7 +1998,7 @@ pub fn new_image_network(output_offset: i32, output_node_id: NodeId) -> NodeNetw
 }
 
 pub fn new_vector_network(subpaths: Vec<bezier_rs::Subpath<uuid::ManipulatorGroupId>>) -> NodeNetwork {
-	let path_generator = resolve_document_node_type("Path Generator").expect("Path Generator node does not exist");
+	let path_generator = resolve_document_node_type("Shape").expect("Shape node does not exist");
 	let transform = resolve_document_node_type("Transform").expect("Transform node does not exist");
 	let fill = resolve_document_node_type("Fill").expect("Fill node does not exist");
 	let stroke = resolve_document_node_type("Stroke").expect("Stroke node does not exist");

editor/src/messages/tool/tool_messages/pen_tool.rs

@@ -790,7 +790,7 @@ fn get_subpaths<'a>(layer_path: &[LayerId], document: &'a DocumentMessageHandler
 	let layer = document.document_legacy.layer(layer_path).ok().and_then(|layer| layer.as_layer().ok())?;
 	let network = &layer.network;
 	for (node, _node_id) in network.primary_flow() {
-		if node.name == "Path Generator" {
+		if node.name == "Shape" {
 			let subpaths_input = node.inputs.get(0)?;
 			let NodeInput::Value {
 				tagged_value: TaggedValue::Subpaths(subpaths),

frontend/src/components/Editor.svelte

@@ -140,6 +140,7 @@
 
 		--icon-expand-collapse-arrow: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8"><polygon fill="%23eee" points="3,0 1,0 5,4 1,8 3,8 7,4" /></svg>');
 		--icon-expand-collapse-arrow-hover: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8"><polygon fill="%23fff" points="3,0 1,0 5,4 1,8 3,8 7,4" /></svg>');
+		--icon-expand-collapse-arrow-disabled: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8"><polygon fill="%23888" points="3,0 1,0 5,4 1,8 3,8 7,4" /></svg>');
 	}
 
 	html,

frontend/src/components/floating-menus/ColorPicker.svelte

@@ -285,12 +285,12 @@
 		</LayoutCol>
 		<LayoutCol class="hue-picker" on:pointerdown={onPointerDown} data-hue-picker>
 			{#if !isNone}
-				<div class="selection-pincers" style:top={`${(1 - hue) * 100}%`} />
+				<div class="selection-needle" style:top={`${(1 - hue) * 100}%`} />
 			{/if}
 		</LayoutCol>
 		<LayoutCol class="alpha-picker" on:pointerdown={onPointerDown} data-alpha-picker>
 			{#if !isNone}
-				<div class="selection-pincers" style:top={`${(1 - alpha) * 100}%`} />
+				<div class="selection-needle" style:top={`${(1 - alpha) * 100}%`} />
 			{/if}
 		</LayoutCol>
 		<LayoutCol class="details">
@@ -434,11 +434,12 @@
 			background-blend-mode: screen;
 			background: linear-gradient(to top, #ff0000ff 16.666%, #ff000000 33.333%, #ff000000 66.666%, #ff0000ff 83.333%),
 				linear-gradient(to top, #00ff0000 0%, #00ff00ff 16.666%, #00ff00ff 50%, #00ff0000 66.666%), linear-gradient(to top, #0000ff00 33.333%, #0000ffff 50%, #0000ffff 83.333%, #0000ff00 100%);
-			--selection-pincers-color: var(--hue-color-contrasting);
+			--selection-needle-color: var(--hue-color-contrasting);
 		}
 
 		.alpha-picker {
 			background: linear-gradient(to bottom, var(--opaque-color), transparent);
+			--selection-needle-color: var(--new-color-contrasting);
 
 			&::before {
 				content: "";
@@ -450,7 +451,6 @@
 				background-size: var(--color-transparent-checkered-background-size);
 				background-position: var(--color-transparent-checkered-background-position);
 			}
-			--selection-pincers-color: var(--new-color-contrasting);
 		}
 
 		.selection-circle {
@@ -475,7 +475,7 @@
 			}
 		}
 
-		.selection-pincers {
+		.selection-needle {
 			position: absolute;
 			top: 0%;
 			width: 100%;
@@ -489,7 +489,7 @@
 				left: 0;
 				border-style: solid;
 				border-width: 4px 0 4px 4px;
-				border-color: transparent transparent transparent var(--selection-pincers-color);
+				border-color: transparent transparent transparent var(--selection-needle-color);
 			}
 
 			&::after {
@@ -499,7 +499,7 @@
 				right: 0;
 				border-style: solid;
 				border-width: 4px 4px 4px 0;
-				border-color: transparent var(--selection-pincers-color) transparent transparent;
+				border-color: transparent var(--selection-needle-color) transparent transparent;
 			}
 		}
 

frontend/src/components/panels/NodeGraph.svelte

@@ -2,9 +2,8 @@
 	import { getContext, onMount, tick } from "svelte";
 
 	import type { IconName } from "@graphite/utility-functions/icons";
-
-	import { UpdateNodeGraphSelection, type FrontendNodeLink, type FrontendNodeType, type FrontendNode } from "@graphite/wasm-communication/messages";
-
+	import { UpdateNodeGraphSelection } from "@graphite/wasm-communication/messages";
+	import type { FrontendNodeLink, FrontendNodeType, FrontendNode } from "@graphite/wasm-communication/messages";
 	import LayoutCol from "@graphite/components/layout/LayoutCol.svelte";
 	import LayoutRow from "@graphite/components/layout/LayoutRow.svelte";
 	import TextButton from "@graphite/components/widgets/buttons/TextButton.svelte";
@@ -24,6 +23,8 @@
 	const editor = getContext<Editor>("editor");
 	const nodeGraph = getContext<NodeGraphState>("nodeGraph");
 
+	type LinkPath = { pathString: string; dataType: string; thick: boolean };
+
 	let graph: LayoutRow | undefined;
 	let nodesContainer: HTMLDivElement | undefined;
 	let nodeSearchInput: TextInput | undefined;
@@ -33,10 +34,10 @@
 	let selected: bigint[] = [];
 	let draggingNodes: { startX: number; startY: number; roundX: number; roundY: number } | undefined = undefined;
 	let selectIfNotDragged: undefined | bigint = undefined;
-	let linkInProgressFromConnector: HTMLDivElement | undefined = undefined;
-	let linkInProgressToConnector: HTMLDivElement | DOMRect | undefined = undefined;
+	let linkInProgressFromConnector: SVGSVGElement | undefined = undefined;
+	let linkInProgressToConnector: SVGSVGElement | DOMRect | undefined = undefined;
 	let disconnecting: { nodeId: bigint; inputIndex: number; linkIndex: number } | undefined = undefined;
-	let nodeLinkPaths: [string, string][] = [];
+	let nodeLinkPaths: LinkPath[] = [];
 	let searchTerm = "";
 	let nodeListLocation: { x: number; y: number } | undefined = undefined;
 
@@ -109,14 +110,19 @@
 		return Array.from(categories);
 	}
 
-	function createLinkPathInProgress(linkInProgressFromConnector?: HTMLDivElement, linkInProgressToConnector?: HTMLDivElement | DOMRect): [string, string] | undefined {
+	function createLinkPathInProgress(linkInProgressFromConnector?: SVGSVGElement, linkInProgressToConnector?: SVGSVGElement | DOMRect): LinkPath | undefined {
 		if (linkInProgressFromConnector && linkInProgressToConnector && nodesContainer) {
-			return createWirePath(linkInProgressFromConnector, linkInProgressToConnector, false, false);
+			const from = connectorToNodeIndex(linkInProgressFromConnector);
+			const to = linkInProgressToConnector instanceof SVGSVGElement ? connectorToNodeIndex(linkInProgressToConnector) : undefined;
+
+			const linkStart = $nodeGraph.nodes.find((node) => node.id === from?.nodeId)?.displayName === "Layer";
+			const linkEnd = $nodeGraph.nodes.find((node) => node.id === to?.nodeId)?.displayName === "Layer" && to?.index !== 0;
+			return createWirePath(linkInProgressFromConnector, linkInProgressToConnector, linkStart, linkEnd);
 		}
 		return undefined;
 	}
 
-	function createLinkPaths(linkPathInProgress: [string, string] | undefined, nodeLinkPaths: [string, string][]): [string, string][] {
+	function createLinkPaths(linkPathInProgress: LinkPath | undefined, nodeLinkPaths: LinkPath[]): LinkPath[] {
 		const optionalTuple = linkPathInProgress ? [linkPathInProgress] : [];
 		return [...optionalTuple, ...nodeLinkPaths];
 	}
@@ -126,7 +132,7 @@
 		await refreshLinks();
 	}
 
-	function resolveLink(link: FrontendNodeLink, containerBounds: HTMLDivElement): { nodePrimaryOutput: HTMLDivElement | undefined; nodePrimaryInput: HTMLDivElement | undefined } {
+	function resolveLink(link: FrontendNodeLink, containerBounds: HTMLDivElement): { nodeOutput: SVGSVGElement | undefined; nodeInput: SVGSVGElement | undefined } {
 		const outputIndex = Number(link.linkStartOutputIndex);
 		const inputIndex = Number(link.linkEndInputIndex);
 
@@ -134,9 +140,9 @@
 
 		const nodeInputConnectors = containerBounds.querySelectorAll(`[data-node="${String(link.linkEnd)}"] [data-port="input"]`) || undefined;
 
-		const nodePrimaryOutput = nodeOutputConnectors?.[outputIndex] as HTMLDivElement | undefined;
-		const nodePrimaryInput = nodeInputConnectors?.[inputIndex] as HTMLDivElement | undefined;
-		return { nodePrimaryOutput, nodePrimaryInput };
+		const nodeOutput = nodeOutputConnectors?.[outputIndex] as SVGSVGElement | undefined;
+		const nodeInput = nodeInputConnectors?.[inputIndex] as SVGSVGElement | undefined;
+		return { nodeOutput, nodeInput };
 	}
 
 	async function refreshLinks(): Promise<void> {
@@ -147,11 +153,13 @@
 
 		const links = $nodeGraph.links;
 		nodeLinkPaths = links.flatMap((link, index) => {
-			const { nodePrimaryInput, nodePrimaryOutput } = resolveLink(link, theNodesContainer);
-			if (!nodePrimaryInput || !nodePrimaryOutput) return [];
+			const { nodeInput, nodeOutput } = resolveLink(link, theNodesContainer);
+			if (!nodeInput || !nodeOutput) return [];
 			if (disconnecting?.linkIndex === index) return [];
+			const linkStart = $nodeGraph.nodes.find((node) => node.id === link.linkStart)?.displayName === "Layer";
+			const linkEnd = $nodeGraph.nodes.find((node) => node.id === link.linkEnd)?.displayName === "Layer" && link.linkEndInputIndex !== 0n;
 
-			return [createWirePath(nodePrimaryOutput, nodePrimaryInput.getBoundingClientRect(), false, false)];
+			return [createWirePath(nodeOutput, nodeInput.getBoundingClientRect(), linkStart, linkEnd)];
 		});
 	}
 
@@ -205,13 +213,13 @@
 		return `M${locations[0].x},${locations[0].y} C${locations[1].x},${locations[1].y} ${locations[2].x},${locations[2].y} ${locations[3].x},${locations[3].y}`;
 	}
 
-	function createWirePath(outputPort: HTMLDivElement, inputPort: HTMLDivElement | DOMRect, verticalOut: boolean, verticalIn: boolean): [string, string] {
-		const inputPortRect = inputPort instanceof HTMLDivElement ? inputPort.getBoundingClientRect() : inputPort;
+	function createWirePath(outputPort: SVGSVGElement, inputPort: SVGSVGElement | DOMRect, verticalOut: boolean, verticalIn: boolean): LinkPath {
+		const inputPortRect = inputPort instanceof DOMRect ? inputPort : inputPort.getBoundingClientRect();
 
 		const pathString = buildWirePathString(outputPort.getBoundingClientRect(), inputPortRect, verticalOut, verticalIn);
 		const dataType = outputPort.getAttribute("data-datatype") || "general";
 
-		return [pathString, dataType];
+		return { pathString, dataType, thick: verticalIn && verticalOut };
 	}
 
 	function scroll(e: WheelEvent) {
@@ -273,7 +281,7 @@
 	function pointerDown(e: PointerEvent) {
 		const [lmb, rmb] = [e.button === 0, e.button === 2];
 
-		const port = (e.target as HTMLDivElement).closest("[data-port]") as HTMLDivElement;
+		const port = (e.target as SVGSVGElement).closest("[data-port]") as SVGSVGElement;
 		const node = (e.target as HTMLElement).closest("[data-node]") as HTMLElement | undefined;
 		const nodeId = node?.getAttribute("data-node") || undefined;
 		const nodeList = (e.target as HTMLElement).closest("[data-node-list]") as HTMLElement | undefined;
@@ -315,17 +323,19 @@
 				const inputNodeConnectionIndexSearch = inputNodeInPorts.indexOf(port);
 				const inputIndex = inputNodeConnectionIndexSearch > -1 ? inputNodeConnectionIndexSearch : undefined;
 				// Set the link to draw from the input that a previous link was on
-				if (inputIndex !== undefined && nodeId) {
+				if (inputIndex !== undefined && nodeId !== undefined) {
 					const nodeIdInt = BigInt(nodeId);
 					const inputIndexInt = BigInt(inputIndex);
 					const links = $nodeGraph.links;
 					const linkIndex = links.findIndex((value) => value.linkEnd === nodeIdInt && value.linkEndInputIndex === inputIndexInt);
-					const nodeOutputConnectors = nodesContainer?.querySelectorAll(`[data-node="${String(links[linkIndex].linkStart)}"] [data-port="output"]`) || undefined;
-					linkInProgressFromConnector = nodeOutputConnectors?.[Number(links[linkIndex].linkStartOutputIndex)] as HTMLDivElement | undefined;
-					const nodeInputConnectors = nodesContainer?.querySelectorAll(`[data-node="${String(links[linkIndex].linkEnd)}"] [data-port="input"]`) || undefined;
-					linkInProgressToConnector = nodeInputConnectors?.[Number(links[linkIndex].linkEndInputIndex)] as HTMLDivElement | undefined;
-					disconnecting = { nodeId: nodeIdInt, inputIndex, linkIndex };
-					refreshLinks();
+					if (linkIndex !== -1) {
+						const nodeOutputConnectors = nodesContainer?.querySelectorAll(`[data-node="${String(links[linkIndex].linkStart)}"] [data-port="output"]`) || undefined;
+						linkInProgressFromConnector = nodeOutputConnectors?.[Number(links[linkIndex].linkStartOutputIndex)] as SVGSVGElement | undefined;
+						const nodeInputConnectors = nodesContainer?.querySelectorAll(`[data-node="${String(links[linkIndex].linkEnd)}"] [data-port="input"]`) || undefined;
+						linkInProgressToConnector = nodeInputConnectors?.[Number(links[linkIndex].linkEndInputIndex)] as SVGSVGElement | undefined;
+						disconnecting = { nodeId: nodeIdInt, inputIndex, linkIndex };
+						refreshLinks();
+					}
 				}
 			}
 
@@ -354,7 +364,7 @@
 				draggingNodes = { startX: e.x, startY: e.y, roundX: 0, roundY: 0 };
 			}
 
-			if (modifiedSelected) editor.instance.selectNodes(selected.length > 0 ? new BigUint64Array(selected): null);
+			if (modifiedSelected) editor.instance.selectNodes(selected.length > 0 ? new BigUint64Array(selected) : null);
 
 			return;
 		}
@@ -384,7 +394,7 @@
 			transform.y += e.movementY / transform.scale;
 		} else if (linkInProgressFromConnector) {
 			const target = e.target as Element | undefined;
-			const dot = (target?.closest(`[data-port="input"]`) || undefined) as HTMLDivElement | undefined;
+			const dot = (target?.closest(`[data-port="input"]`) || undefined) as SVGSVGElement | undefined;
 			if (dot) {
 				linkInProgressToConnector = dot;
 			} else {
@@ -401,6 +411,23 @@
 		}
 	}
 
+	function connectorToNodeIndex(svg: SVGSVGElement): { nodeId: bigint; index: number } | undefined {
+		const node = svg.closest("[data-node]");
+
+		if (!node) return undefined;
+		const nodeIdAttribute = node.getAttribute("data-node");
+		if (!nodeIdAttribute) return undefined;
+		const nodeId = BigInt(nodeIdAttribute);
+
+		const inputPortElements = Array.from(node.querySelectorAll(`[data-port="input"]`));
+		const outputPortElements = Array.from(node.querySelectorAll(`[data-port="output"]`));
+		const inputNodeConnectionIndexSearch = inputPortElements.includes(svg) ? inputPortElements.indexOf(svg) : outputPortElements.indexOf(svg);
+		const index = inputNodeConnectionIndexSearch > -1 ? inputNodeConnectionIndexSearch : undefined;
+
+		if (nodeId !== undefined && index !== undefined) return { nodeId, index };
+		else return undefined;
+	}
+
 	function pointerUp(e: PointerEvent) {
 		panning = false;
 
@@ -409,26 +436,14 @@
 		}
 		disconnecting = undefined;
 
-		if (linkInProgressToConnector instanceof HTMLDivElement && linkInProgressFromConnector) {
-			const outputNode = linkInProgressFromConnector.closest("[data-node]");
-			const inputNode = linkInProgressToConnector.closest("[data-node]");
+		if (linkInProgressToConnector instanceof SVGSVGElement && linkInProgressFromConnector) {
+			const from = connectorToNodeIndex(linkInProgressFromConnector);
+			const to = connectorToNodeIndex(linkInProgressToConnector);
 
-			const outputConnectedNodeID = outputNode?.getAttribute("data-node") ?? undefined;
-			const inputConnectedNodeID = inputNode?.getAttribute("data-node") ?? undefined;
-
-			if (outputNode && inputNode && outputConnectedNodeID && inputConnectedNodeID) {
-				const inputNodeInPorts = Array.from(inputNode.querySelectorAll(`[data-port="input"]`));
-				const outputNodeInPorts = Array.from(outputNode.querySelectorAll(`[data-port="output"]`));
-
-				const inputNodeConnectionIndexSearch = inputNodeInPorts.indexOf(linkInProgressToConnector);
-				const outputNodeConnectionIndexSearch = outputNodeInPorts.indexOf(linkInProgressFromConnector);
-
-				const inputNodeConnectionIndex = inputNodeConnectionIndexSearch > -1 ? inputNodeConnectionIndexSearch : undefined;
-				const outputNodeConnectionIndex = outputNodeConnectionIndexSearch > -1 ? outputNodeConnectionIndexSearch : undefined;
-
-				if (inputNodeConnectionIndex !== undefined && outputNodeConnectionIndex !== undefined) {
-					editor.instance.connectNodesByLink(BigInt(outputConnectedNodeID), outputNodeConnectionIndex, BigInt(inputConnectedNodeID), inputNodeConnectionIndex);
-				}
+			if (from !== undefined && to !== undefined) {
+				const { nodeId: outputConnectedNodeID, index: outputNodeConnectionIndex } = from;
+				const { nodeId: inputConnectedNodeID, index: inputNodeConnectionIndex } = to;
+				editor.instance.connectNodesByLink(outputConnectedNodeID, outputNodeConnectionIndex, inputConnectedNodeID, inputNodeConnectionIndex);
 			}
 		} else if (draggingNodes) {
 			if (draggingNodes.startX === e.x || draggingNodes.startY === e.y) {
@@ -456,10 +471,10 @@
 
 					// Find the link that the node has been dragged on top of
 					const link = $nodeGraph.links.find((link): boolean => {
-						const { nodePrimaryInput, nodePrimaryOutput } = resolveLink(link, theNodesContainer);
-						if (!nodePrimaryInput || !nodePrimaryOutput) return false;
+						const { nodeInput, nodeOutput } = resolveLink(link, theNodesContainer);
+						if (!nodeInput || !nodeOutput) return false;
 
-						const wireCurveLocations = buildWirePathLocations(nodePrimaryOutput.getBoundingClientRect(), nodePrimaryInput.getBoundingClientRect(), false, false);
+						const wireCurveLocations = buildWirePathLocations(nodeOutput.getBoundingClientRect(), nodeInput.getBoundingClientRect(), false, false);
 
 						const selectedNodeBounds = selectedNode.getBoundingClientRect();
 						const containerBoundsBounds = theNodesContainer.getBoundingClientRect();
@@ -498,15 +513,20 @@
 		nodeListLocation = undefined;
 	}
 
+	function buildBorderMask(nodeWidth: number, primaryInputExists: boolean, parameters: number, primaryOutputExists: boolean, exposedOutputs: number): string {
+		const nodeHeight = Math.max(1 + parameters, 1 + exposedOutputs) * 24;
+
+		const boxes: { x: number; y: number; width: number; height: number }[] = [];
+		if (primaryInputExists) boxes.push({ x: -8, y: 4, width: 16, height: 16 });
+		for (let i = 0; i < parameters; i++) boxes.push({ x: -8, y: 4 + (i + 1) * 24, width: 16, height: 16 });
+		if (primaryOutputExists) boxes.push({ x: nodeWidth - 8, y: 4, width: 16, height: 16 });
+		for (let i = 0; i < exposedOutputs; i++) boxes.push({ x: nodeWidth - 8, y: 4 + (i + 1) * 24, width: 16, height: 16 });
+
+		const rectangles = boxes.map((box) => `M${box.x},${box.y} L${box.x + box.width},${box.y} L${box.x + box.width},${box.y + box.height} L${box.x},${box.y + box.height}z`);
+		return `M-2,-2 L${nodeWidth + 2},-2 L${nodeWidth + 2},${nodeHeight + 2} L-2,${nodeHeight + 2}z ${rectangles.join(" ")}`;
+	}
+
 	onMount(() => {
-		const outputPort1 = document.querySelectorAll(`[data-port="output"]`)[4] as HTMLDivElement | undefined;
-		const inputPort1 = document.querySelectorAll(`[data-port="input"]`)[1] as HTMLDivElement | undefined;
-		if (outputPort1 && inputPort1) createWirePath(outputPort1, inputPort1.getBoundingClientRect(), true, true);
-
-		const outputPort2 = document.querySelectorAll(`[data-port="output"]`)[6] as HTMLDivElement | undefined;
-		const inputPort2 = document.querySelectorAll(`[data-port="input"]`)[3] as HTMLDivElement | undefined;
-		if (outputPort2 && inputPort2) createWirePath(outputPort2, inputPort2.getBoundingClientRect(), true, false);
-
 		editor.subscriptions.subscribeJsMessage(UpdateNodeGraphSelection, (updateNodeGraphSelection) => {
 			selected = updateNodeGraphSelection.selected;
 		});
@@ -530,6 +550,9 @@
 			"--dot-radius": `${dotRadius}px`,
 		}}
 	>
+		<img src="https://files.keavon.com/-/MountainousDroopyBlueshark/flyover.jpg" />
+		<div class="fade-artwork" />
+		<!-- Right click menu for adding nodes -->
 		{#if nodeListLocation}
 			<LayoutCol
 				class="node-list"
@@ -559,92 +582,195 @@
 				</div>
 			</LayoutCol>
 		{/if}
-		<div class="nodes" style:transform={`scale(${transform.scale}) translate(${transform.x}px, ${transform.y}px)`} style:transform-origin={`0 0`} bind:this={nodesContainer}>
-			{#each $nodeGraph.nodes as node (String(node.id))}
-				{@const exposedInputsOutputs = [...node.exposedInputs, ...node.outputs.slice(1)]}
+		<!-- Node connection links -->
+		<div class="wires" style:transform={`scale(${transform.scale}) translate(${transform.x}px, ${transform.y}px)`} style:transform-origin={`0 0`}>
+			<svg>
+				{#each linkPaths as { pathString, dataType, thick }}
+					<path
+						d={pathString}
+						style:--data-line-width={`${thick ? 5 : 2}px`}
+						style:--data-color={`var(--color-data-${dataType})`}
+						style:--data-color-dim={`var(--color-data-${dataType}-dim)`}
+					/>
+				{/each}
+			</svg>
+		</div>
+		<!-- Layers and nodes -->
+		<div class="layers-and-nodes" style:transform={`scale(${transform.scale}) translate(${transform.x}px, ${transform.y}px)`} style:transform-origin={`0 0`} bind:this={nodesContainer}>
+			<!-- Layers -->
+			{#each $nodeGraph.nodes.filter((node) => node.displayName === "Layer") as node (String(node.id))}
+				{@const exposedInputsOutputs = [...node.exposedInputs, ...node.exposedOutputs]}
+				{@const clipPathId = `${Math.random()}`.substring(2)}
+				{@const stackDatainput = node.exposedInputs[0]}
 				<div
-					class="node"
+					class="layer"
 					class:selected={selected.includes(node.id)}
 					class:previewed={node.previewed}
 					class:disabled={node.disabled}
 					style:--offset-left={(node.position?.x || 0) + (selected.includes(node.id) ? draggingNodes?.roundX || 0 : 0)}
 					style:--offset-top={(node.position?.y || 0) + (selected.includes(node.id) ? draggingNodes?.roundY || 0 : 0)}
+					style:--clip-path-id={`url(#${clipPathId})`}
 					data-node={node.id}
 				>
-					<div class="primary">
-						<div class="ports">
-							{#if node.primaryInput}
-								<div
-									class="input port"
-									data-port="input"
-									data-datatype={node.primaryInput}
-									style:--data-color={`var(--color-data-${node.primaryInput})`}
-									style:--data-color-dim={`var(--color-data-${node.primaryInput}-dim)`}
-								>
-									<div />
-								</div>
-							{/if}
-							{#if node.outputs.length > 0}
-								<div
-									class="output port"
-									data-port="output"
-									data-datatype={node.outputs[0].dataType}
-									style:--data-color={`var(--color-data-${node.outputs[0].dataType})`}
-									style:--data-color-dim={`var(--color-data-${node.outputs[0].dataType}-dim)`}
-								>
-									<div />
-								</div>
-							{/if}
-						</div>
-						{#if node.thumbnailSvg}
-							{@html node.thumbnailSvg}
-						{:else}
-							<IconLabel icon={nodeIcon(node.displayName)} />
+					<div class="node-chain" />
+					<!-- Layer input port (from left) -->
+					<div class="input ports">
+						<svg
+							xmlns="http://www.w3.org/2000/svg"
+							viewBox="0 0 8 8"
+							class="port"
+							data-port="input"
+							data-datatype={node.primaryInput}
+							style:--data-color={`var(--color-data-${node.primaryInput})`}
+							style:--data-color-dim={`var(--color-data-${node.primaryInput}-dim)`}
+						>
+							<path d="M0,6.306A1.474,1.474,0,0,0,2.356,7.724L7.028,5.248c1.3-.687,1.3-1.809,0-2.5L2.356.276A1.474,1.474,0,0,0,0,1.694Z" />
+						</svg>
+					</div>
+					<div class="thumbnail">
+						{@html node.thumbnailSvg}
+						{#if node.primaryOutput}
+							<svg
+								xmlns="http://www.w3.org/2000/svg"
+								viewBox="0 0 8 8"
+								class="port top"
+								data-port="output"
+								data-datatype={node.primaryOutput.dataType}
+								style:--data-color={`var(--color-data-${node.primaryOutput.dataType})`}
+								style:--data-color-dim={`var(--color-data-${node.primaryOutput.dataType}-dim)`}
+							>
+								<path d="M0,6.306A1.474,1.474,0,0,0,2.356,7.724L7.028,5.248c1.3-.687,1.3-1.809,0-2.5L2.356.276A1.474,1.474,0,0,0,0,1.694Z" />
+							</svg>
 						{/if}
+						<svg
+							xmlns="http://www.w3.org/2000/svg"
+							viewBox="0 0 8 8"
+							class="port bottom"
+							data-port="input"
+							data-datatype={stackDatainput.dataType}
+							style:--data-color={`var(--color-data-${stackDatainput.dataType})`}
+							style:--data-color-dim={`var(--color-data-${stackDatainput.dataType}-dim)`}
+						>
+							<path d="M0,6.306A1.474,1.474,0,0,0,2.356,7.724L7.028,5.248c1.3-.687,1.3-1.809,0-2.5L2.356.276A1.474,1.474,0,0,0,0,1.694Z" />
+						</svg>
+					</div>
+					<div class="details">
 						<TextLabel>{node.displayName}</TextLabel>
 					</div>
+
+					<svg class="border-mask" width="0" height="0">
+						<defs>
+							<clipPath id={clipPathId}>
+								<path clip-rule="evenodd" d={buildBorderMask(120, node.primaryInput !== undefined, node.exposedInputs.length, node.primaryOutput !== undefined, node.exposedOutputs)} />
+							</clipPath>
+						</defs>
+					</svg>
+				</div>
+			{/each}
+			<!-- Nodes -->
+			{#each $nodeGraph.nodes.filter((node) => node.displayName !== "Layer") as node (String(node.id))}
+				{@const exposedInputsOutputs = [...node.exposedInputs, ...node.exposedOutputs]}
+				{@const clipPathId = `${Math.random()}`.substring(2)}
+				<div
+					class="node"
+					class:selected={selected.includes(node.id)}
+					class:previewed={node.previewed}
+					class:disabled={node.disabled}
+					class:is-layer={node.thumbnailSvg !== undefined}
+					style:--offset-left={(node.position?.x || 0) + (selected.includes(node.id) ? draggingNodes?.roundX || 0 : 0)}
+					style:--offset-top={(node.position?.y || 0) + (selected.includes(node.id) ? draggingNodes?.roundY || 0 : 0)}
+					style:--clip-path-id={`url(#${clipPathId})`}
+					data-node={node.id}
+				>
+					<!-- Primary row -->
+					<div class="primary" class:no-parameter-section={exposedInputsOutputs.length === 0}>
+						<IconLabel icon={nodeIcon(node.displayName)} />
+						<TextLabel>{node.displayName}</TextLabel>
+					</div>
+					<!-- Parameter rows -->
 					{#if exposedInputsOutputs.length > 0}
 						<div class="parameters">
-							{#each exposedInputsOutputs as parameter, index (index)}
-								<div class="parameter">
-									<div class="ports">
-										{#if index < node.exposedInputs.length}
-											<div
-												class="input port"
-												data-port="input"
-												data-datatype={parameter.dataType}
-												style:--data-color={`var(--color-data-${parameter.dataType})`}
-												style:--data-color-dim={`var(--color-data-${parameter.dataType}-dim)`}
-											>
-												<div />
-											</div>
-										{:else}
-											<div
-												class="output port"
-												data-port="output"
-												data-datatype={parameter.dataType}
-												style:--data-color={`var(--color-data-${parameter.dataType})`}
-												style:--data-color-dim={`var(--color-data-${parameter.dataType}-dim)`}
-											>
-												<div />
-											</div>
-										{/if}
-									</div>
+							{#each exposedInputsOutputs as parameter, index}
+								<div class="parameter expanded">
+									<div class="expand-arrow" />
 									<TextLabel class={index < node.exposedInputs.length ? "name" : "output"}>{parameter.name}</TextLabel>
 								</div>
 							{/each}
 						</div>
 					{/if}
+					<!-- Input ports -->
+					<div class="input ports">
+						{#if node.primaryInput}
+							<svg
+								xmlns="http://www.w3.org/2000/svg"
+								viewBox="0 0 8 8"
+								class="port"
+								data-port="input"
+								data-datatype={node.primaryInput}
+								style:--data-color={`var(--color-data-${node.primaryInput})`}
+								style:--data-color-dim={`var(--color-data-${node.primaryInput}-dim)`}
+							>
+								<path d="M0,6.306A1.474,1.474,0,0,0,2.356,7.724L7.028,5.248c1.3-.687,1.3-1.809,0-2.5L2.356.276A1.474,1.474,0,0,0,0,1.694Z" />
+							</svg>
+						{/if}
+						{#each node.exposedInputs as parameter, index}
+							{#if index < node.exposedInputs.length}
+								<svg
+									xmlns="http://www.w3.org/2000/svg"
+									viewBox="0 0 8 8"
+									class="port"
+									data-port="input"
+									data-datatype={parameter.dataType}
+									style:--data-color={`var(--color-data-${parameter.dataType})`}
+									style:--data-color-dim={`var(--color-data-${parameter.dataType}-dim)`}
+								>
+									<path d="M0,6.306A1.474,1.474,0,0,0,2.356,7.724L7.028,5.248c1.3-.687,1.3-1.809,0-2.5L2.356.276A1.474,1.474,0,0,0,0,1.694Z" />
+								</svg>
+							{/if}
+						{/each}
+					</div>
+					<!-- Output ports -->
+					<div class="output ports">
+						{#if node.primaryOutput}
+							<svg
+								xmlns="http://www.w3.org/2000/svg"
+								viewBox="0 0 8 8"
+								class="port"
+								data-port="output"
+								data-datatype={node.primaryOutput.dataType}
+								style:--data-color={`var(--color-data-${node.primaryOutput.dataType})`}
+								style:--data-color-dim={`var(--color-data-${node.primaryOutput.dataType}-dim)`}
+							>
+								<path d="M0,6.306A1.474,1.474,0,0,0,2.356,7.724L7.028,5.248c1.3-.687,1.3-1.809,0-2.5L2.356.276A1.474,1.474,0,0,0,0,1.694Z" />
+							</svg>
+						{/if}
+						{#each node.exposedOutputs as parameter}
+							<svg
+								xmlns="http://www.w3.org/2000/svg"
+								viewBox="0 0 8 8"
+								class="port"
+								data-port="output"
+								data-datatype={parameter.dataType}
+								style:--data-color={`var(--color-data-${parameter.dataType})`}
+								style:--data-color-dim={`var(--color-data-${parameter.dataType}-dim)`}
+							>
+								<path d="M0,6.306A1.474,1.474,0,0,0,2.356,7.724L7.028,5.248c1.3-.687,1.3-1.809,0-2.5L2.356.276A1.474,1.474,0,0,0,0,1.694Z" />
+							</svg>
+						{/each}
+					</div>
+					<svg class="border-mask" width="0" height="0">
+						<defs>
+							<clipPath id={clipPathId}>
+								<path
+									clip-rule="evenodd"
+									d={buildBorderMask(120, node.primaryInput !== undefined, node.exposedInputs.length, node.primaryOutput !== undefined, node.exposedOutputs.length)}
+								/>
+							</clipPath>
+						</defs>
+					</svg>
 				</div>
 			{/each}
 		</div>
-		<div class="wires" style:transform={`scale(${transform.scale}) translate(${transform.x}px, ${transform.y}px)`} style:transform-origin={`0 0`}>
-			<svg>
-				{#each linkPaths as [pathString, dataType], index (index)}
-					<path d={pathString} style:--data-color={`var(--color-data-${dataType})`} style:--data-color-dim={`var(--color-data-${dataType}-dim)`} />
-				{/each}
-			</svg>
-		</div>
 	</LayoutRow>
 </LayoutCol>
 
@@ -712,6 +838,13 @@
 			}
 		}
 
+		.fade-artwork {
+			background: var(--color-2-mildblack);
+			opacity: 0.8;
+			width: 100%;
+			height: 100%;
+		}
+
 		.graph {
 			position: relative;
 			background: var(--color-2-mildblack);
@@ -721,6 +854,11 @@
 			border-radius: 2px;
 			overflow: hidden;
 
+			> img {
+				position: absolute;
+				bottom: 0;
+			}
+
 			// We're displaying the dotted grid in a pseudo-element because `image-rendering` is an inherited property and we don't want it to apply to child elements
 			&::before {
 				content: "";
@@ -735,7 +873,7 @@
 			}
 		}
 
-		.nodes,
+		.layers-and-nodes,
 		.wires {
 			position: absolute;
 			width: 100%;
@@ -753,27 +891,46 @@
 
 					path {
 						fill: none;
-						// stroke: var(--color-data-raster-dim);
 						stroke: var(--data-color-dim);
-						stroke-width: 2px;
+						stroke-width: var(--data-line-width);
 					}
 				}
 			}
 
-			&.nodes {
+			&.layers-and-nodes {
+				.layer,
 				.node {
 					position: absolute;
 					display: flex;
-					flex-direction: column;
-					min-width: 120px;
-					border-radius: 4px;
-					background: var(--color-4-dimgray);
-					left: calc((var(--offset-left) + 0.5) * 24px);
-					top: calc((var(--offset-top) - 0.5) * 24px);
+					backdrop-filter: blur(8px) brightness(100% - 33%);
+					left: calc(var(--offset-left) * 24px);
+					top: calc(var(--offset-top) * 24px);
+
+					&::after {
+						content: "";
+						position: absolute;
+						box-sizing: border-box;
+						top: 0;
+						left: 0;
+						width: 100%;
+						height: 100%;
+						pointer-events: none;
+						clip-path: var(--clip-path-id);
+					}
+
+					.border-mask {
+						position: absolute;
+						top: 0;
+					}
 
 					&.selected {
-						border: 1px solid var(--color-e-nearwhite);
-						margin: -1px;
+						.primary {
+							background: rgba(255, 255, 255, 0.15);
+						}
+
+						.parameters {
+							background: rgba(255, 255, 255, 0.1);
+						}
 					}
 
 					&.disabled {
@@ -783,24 +940,170 @@
 						.icon-label {
 							fill: var(--color-a-softgray);
 						}
+
+						.expand-arrow::after {
+							background: var(--icon-expand-collapse-arrow-disabled);
+						}
 					}
 
-					&.previewed {
-						outline: 3px solid var(--color-data-vector);
+					&.previewed::after {
+						border: 1px dashed var(--color-data-vector);
+					}
+
+					.ports {
+						position: absolute;
+
+						&.input {
+							left: -3px;
+						}
+
+						&.output {
+							right: -5px;
+						}
+					}
+
+					.port {
+						fill: var(--data-color);
+						// Double the intended value because of margin collapsing, but for the first and last we divide it by two as intended
+						margin: calc(24px - 8px) 0;
+						width: 8px;
+						height: 8px;
+
+						&:first-of-type {
+							margin-top: calc((24px - 8px) / 2);
+						}
+
+						&:last-of-type {
+							margin-bottom: calc((24px - 8px) / 2);
+						}
+					}
+
+					.expand-arrow {
+						width: 16px;
+						height: 16px;
+						margin: 0;
+						padding: 0;
+						position: relative;
+						flex: 0 0 auto;
+						display: flex;
+						align-items: center;
+						justify-content: center;
+
+						&::after {
+							content: "";
+							position: absolute;
+							width: 8px;
+							height: 8px;
+							background: var(--icon-expand-collapse-arrow);
+						}
+
+						&:hover::after {
+							background: var(--icon-expand-collapse-arrow-hover);
+						}
+					}
+
+					.expanded .expand-arrow::after {
+						transform: rotate(90deg);
+					}
+				}
+
+				.layer {
+					border-radius: 8px;
+					min-width: 216px;
+
+					&::after {
+						border: 1px solid var(--color-5-dullgray);
+						border-radius: 8px;
+					}
+
+					.node-chain {
+						width: 36px;
+					}
+
+					.thumbnail {
+						background: var(--color-2-mildblack);
+						border: 1px solid var(--color-data-vector-dim);
+						border-radius: 2px;
+						position: relative;
+						box-sizing: border-box;
+						width: 72px;
+						height: 48px;
+
+						&::before {
+							content: "";
+							background: var(--color-transparent-checkered-background);
+							background-size: var(--color-transparent-checkered-background-size);
+							background-position: var(--color-transparent-checkered-background-position);
+						}
+
+						&::before,
+						svg:not(.port) {
+							position: absolute;
+							margin: auto;
+							inset: 1px;
+							pointer-events: none;
+						}
+
+						.port {
+							position: absolute;
+							margin: 0 auto;
+							left: 0;
+							right: 0;
+
+							&.top {
+								top: -12px;
+							}
+
+							&.bottom {
+								bottom: -12px;
+							}
+						}
+					}
+
+					.details {
+						margin-left: 12px;
+
+						.text-label {
+							line-height: 48px;
+						}
+					}
+
+					.input.ports,
+					.input.ports .port {
+						position: absolute;
+						margin: auto 0;
+						top: 0;
+						bottom: 0;
+					}
+				}
+
+				.node {
+					flex-direction: column;
+					border-radius: 2px;
+					min-width: 120px;
+					top: calc((var(--offset-top) + 0.5) * 24px);
+
+					&::after {
+						border: 1px solid var(--color-data-vector-dim);
+						border-radius: 2px;
 					}
 
 					.primary {
 						display: flex;
 						align-items: center;
 						position: relative;
-						gap: 4px;
 						width: 100%;
 						height: 24px;
-						background: var(--color-5-dullgray);
-						border-radius: 4px;
+						border-radius: 2px 2px 0 0;
+						font-style: italic;
+						background: rgba(255, 255, 255, 0.05);
+
+						&.no-parameter-section {
+							border-radius: 2px;
+						}
 
 						.icon-label {
-							margin-left: 4px;
+							margin: 0 8px;
 						}
 
 						.text-label {
@@ -818,10 +1121,16 @@
 							position: relative;
 							display: flex;
 							align-items: center;
+							width: 100%;
 							height: 24px;
-							width: calc(100% - 24px * 2);
-							margin-left: 24px;
-							margin-right: 24px;
+
+							&:last-of-type {
+								border-radius: 0 0 2px 2px;
+							}
+
+							.expand-arrow {
+								margin-left: 4px;
+							}
 
 							.text-label {
 								width: 100%;
@@ -832,17 +1141,6 @@
 							}
 						}
 
-						// Squares to cover up the rounded corners of the primary area and make them have a straight edge
-						&::before,
-						&::after {
-							content: "";
-							position: absolute;
-							background: var(--color-5-dullgray);
-							width: 4px;
-							height: 4px;
-							top: -4px;
-						}
-
 						&::before {
 							left: 0;
 						}
@@ -851,46 +1149,6 @@
 							right: 0;
 						}
 					}
-
-					.ports {
-						position: absolute;
-						width: 100%;
-						height: 100%;
-
-						.port {
-							position: absolute;
-							margin: auto 0;
-							top: 0;
-							bottom: 0;
-							width: 12px;
-							height: 12px;
-							border-radius: 50%;
-							background: var(--data-color-dim);
-							// background: var(--color-data-raster-dim);
-
-							div {
-								background: var(--data-color);
-								// background: var(--color-data-raster);
-								width: 8px;
-								height: 8px;
-								border-radius: 50%;
-								position: absolute;
-								top: 0;
-								bottom: 0;
-								left: 0;
-								right: 0;
-								margin: auto;
-							}
-
-							&.input {
-								left: calc(-12px - 6px);
-							}
-
-							&.output {
-								right: calc(-12px - 6px);
-							}
-						}
-					}
 				}
 			}
 		}

frontend/src/components/widgets/groups/WidgetSection.svelte

@@ -49,7 +49,7 @@
 			margin-bottom: 4px;
 			border: 0;
 			border-radius: 4px;
-			background: var(--color-5-dullgray);
+			background: var(--color-2-mildblack);
 
 			.expand-arrow {
 				width: 8px;
@@ -87,7 +87,7 @@
 			}
 
 			&:hover {
-				background: var(--color-6-lowergray);
+				background: var(--color-4-dimgray);
 
 				.expand-arrow::after {
 					background: var(--icon-expand-collapse-arrow-hover);
@@ -98,7 +98,7 @@
 				}
 
 				+ .body {
-					border: 1px solid var(--color-6-lowergray);
+					border: 1px solid var(--color-4-dimgray);
 				}
 			}
 		}
@@ -108,7 +108,7 @@
 			padding-top: 1px;
 			margin-top: -1px;
 			margin-bottom: 4px;
-			border: 1px solid var(--color-5-dullgray);
+			border: 1px solid var(--color-2-mildblack);
 			border-radius: 0 0 4px 4px;
 			overflow: hidden;
 

frontend/src/components/window/workspace/Workspace.svelte

@@ -14,8 +14,8 @@
 	const PANEL_SIZES = {
 		/**/ root: 100,
 		/*   ├── */ content: 80,
-		/*   │      ├── */ document: 80,
-		/*   │      └── */ graph: 20,
+		/*   │      ├── */ document: 50,
+		/*   │      └── */ graph: 50,
 		/*   └── */ details: 20,
 		/*          ├── */ properties: 45,
 		/*          └── */ layers: 55,

frontend/src/wasm-communication/messages.ts

@@ -96,7 +96,9 @@ export class FrontendNode {
 
 	readonly exposedInputs!: NodeGraphInput[];
 
-	readonly outputs!: NodeGraphOutput[];
+	readonly primaryOutput!: NodeGraphOutput | undefined;
+
+	readonly exposedOutputs!: NodeGraphOutput[];
 
 	@TupleToVec2
 	readonly position!: XY | undefined;