Nodes: Document more modules.

src/nodes/core/Node.js

@@ -333,7 +333,6 @@ class Node extends EventDispatcher {
 	 * Generate a custom cache key for this node.
 	 *
 	 * @return {Number} The cache key of the node.
-	 * @default 0
 	 */
 	customCacheKey() {
 

src/nodes/lighting/AONode.js

@@ -1,5 +1,12 @@
 import LightingNode from './LightingNode.js';
 
+/**
+ * A generic class that can be used by nodes which contribute
+ * ambient occlusion to the scene. E.g. an ambient occlusion map
+ * node can be used as input for this module. Used in {@link NodeMaterial}.
+ *
+ * @augments LightingNode
+ */
 class AONode extends LightingNode {
 
 	static get type() {
@@ -8,10 +15,20 @@ class AONode extends LightingNode {
 
 	}
 
+	/**
+	 * Constructs a new AO node.
+	 *
+	 * @param {Node<float>} aoNode - The ambient occlusion node.
+	 */
 	constructor( aoNode = null ) {
 
 		super();
 
+		/**
+		 * The ambient occlusion node.
+		 *
+		 * @type {Node<float>}
+		 */
 		this.aoNode = aoNode;
 
 	}

src/nodes/lighting/AmbientLightNode.js

@@ -1,5 +1,10 @@
 import AnalyticLightNode from './AnalyticLightNode.js';
 
+/**
+ * Module for representing ambient lights as nodes.
+ *
+ * @augments AnalyticLightNode
+ */
 class AmbientLightNode extends AnalyticLightNode {
 
 	static get type() {
@@ -8,6 +13,11 @@ class AmbientLightNode extends AnalyticLightNode {
 
 	}
 
+	/**
+	 * Constructs a new ambient light node.
+	 *
+	 * @param {AmbientLight?} [light=null] - The ambient light source.
+	 */
 	constructor( light = null ) {
 
 		super( light );

src/nodes/lighting/AnalyticLightNode.js

@@ -7,6 +7,11 @@ import { hash } from '../core/NodeUtils.js';
 import { shadow } from './ShadowNode.js';
 import { nodeObject } from '../tsl/TSLCore.js';
 
+/**
+ * Base class for analytic light nodes.
+ *
+ * @augments LightingNode
+ */
 class AnalyticLightNode extends LightingNode {
 
 	static get type() {
@@ -15,31 +20,85 @@ class AnalyticLightNode extends LightingNode {
 
 	}
 
+	/**
+	 * Constructs a new analytic light node.
+	 *
+	 * @param {Light?} [light=null] - The light source.
+	 */
 	constructor( light = null ) {
 
 		super();
 
+		/**
+		 * The light source.
+		 *
+		 * @type {Light}
+		 * @default null
+		 */
 		this.light = light;
 
+		/**
+		 * The light's color value.
+		 *
+		 * @type {Color}
+		 */
 		this.color = new Color();
+
+		/**
+		 * The light's color node. Points to `colorNode` of the light source, if set. Otherwise
+		 * it creates a uniform node based on {@link AnalyticLightNode#color}.
+		 *
+		 * @type {Node}
+		 */
 		this.colorNode = ( light && light.colorNode ) || uniform( this.color ).setGroup( renderGroup );
 
+		/**
+		 * This property is used to retain a reference to the original value of {@link AnalyticLightNode#colorNode}.
+		 * The final color node is represented by a differnt node when using shadows.
+		 *
+		 * @type {Node}
+		 */
 		this.baseColorNode = null;
 
+		/**
+		 * Represents the light's shadow.
+		 *
+		 * @type {ShadowNode}
+		 */
 		this.shadowNode = null;
+
+		/**
+		 * Represents the light's shadow color.
+		 *
+		 * @type {Node}
+		 */
 		this.shadowColorNode = null;
 
+		/**
+		 * This flag can be used for type testing.
+		 *
+		 * @type {Boolean}
+		 * @readonly
+		 * @default true
+		 */
 		this.isAnalyticLightNode = true;
 
+		/**
+		 * Overwritten since analytic light nodes are updated
+		 * once per frame.
+		 *
+		 * @type {String}
+		 * @default 'frame'
+		 */
 		this.updateType = NodeUpdateType.FRAME;
 
 	}
 
 	/**
-	 * Overwrites the default `customCacheKey()` implementation by including the
-	 * light.id and light.castShadow into the cache key.
+	 * Overwrites the default {@link Node#customCacheKey} implementation by including the
+	 * `light.id` and `light.castShadow` into the cache key.
 	 *
-	 * @return {Number} The hash.
+	 * @return {Number} The custom cache key.
 	 */
 	customCacheKey() {
 
@@ -53,12 +112,24 @@ class AnalyticLightNode extends LightingNode {
 
 	}
 
+	/**
+	 * Setups the shadow node for this light. The method exists so concrete light classes
+	 * can setup different types of shadow nodes.
+	 *
+	 * @return {ShadowNode} The created shadow node.
+	 */
 	setupShadowNode() {
 
 		return shadow( this.light );
 
 	}
 
+	/**
+	 * Setups the shadow for this light. This method is only executed if the light
+	 * cast shadows and the current build object receives shadows.
+	 *
+	 * @param {NodeBuilder} builder - The current node builder.
+	 */
 	setupShadow( builder ) {
 
 		const { renderer } = builder;
@@ -97,6 +168,13 @@ class AnalyticLightNode extends LightingNode {
 
 	}
 
+	/**
+	 * Unlike most other nodes, lighting nodes do not return a output node in {@link Node#setup}.
+	 * The main purpose of lighting nodes is to configure the current {@link LightingModel} and/or
+	 * invocate the respecitve interface methods.
+	 *
+	 * @param {NodeBuilder} builder - The current node builder.
+	 */
 	setup( builder ) {
 
 		this.colorNode = this.baseColorNode || this.colorNode;
@@ -119,6 +197,13 @@ class AnalyticLightNode extends LightingNode {
 
 	}
 
+	/**
+	 * The update method is used to update light uniforms per frame.
+	 * Potentially overwritten in concrete light nodes to update light
+	 * specific uniforms.
+	 *
+	 * @param {NodeFrame} frame - A reference to the current node frame.
+	 */
 	update( /*frame*/ ) {
 
 		const { light } = this;

src/nodes/lighting/BasicEnvironmentNode.js

@@ -1,6 +1,14 @@
 import LightingNode from './LightingNode.js';
 import { cubeMapNode } from '../utils/CubeMapNode.js';
 
+/**
+ * Represents a basic model for Image-based lighting (IBL). The environment
+ * is defined via environment maps in the equirectanular or cube map format.
+ * `BasicEnvironmentNode` is intended for non-PBR materials like {@link MeshBasicNodeMaterial}
+ * or {@link MeshPhongNodeMaterial}.
+ *
+ * @augments LightingNode
+ */
 class BasicEnvironmentNode extends LightingNode {
 
 	static get type() {
@@ -9,10 +17,21 @@ class BasicEnvironmentNode extends LightingNode {
 
 	}
 
+	/**
+	 * Constructs a new basic environment node.
+	 *
+	 * @param {Node} [envNode=null] - A node representing the environment.
+	 */
 	constructor( envNode = null ) {
 
 		super();
 
+		/**
+		 * A node representing the environment.
+		 *
+		 * @type {Node}
+		 * @default null
+		 */
 		this.envNode = envNode;
 
 	}

src/nodes/lighting/BasicLightMapNode.js

@@ -1,6 +1,13 @@
 import LightingNode from './LightingNode.js';
 import { float } from '../tsl/TSLBase.js';
 
+/**
+ * A specific version of {@link IrradianceNode} that is only relevant
+ * for {@link MeshBasicNodeMaterial}. Since the material is unlit, it
+ * requires a special scaling factor for the light map.
+ *
+ * @augments LightingNode
+ */
 class BasicLightMapNode extends LightingNode {
 
 	static get type() {
@@ -9,10 +16,20 @@ class BasicLightMapNode extends LightingNode {
 
 	}
 
+	/**
+	 * Constructs a new basic light map node.
+	 *
+	 * @param {Node<vec3>} lightMapNode - The light map node.
+	 */
 	constructor( lightMapNode = null ) {
 
 		super();
 
+		/**
+		 * The light map node.
+		 *
+		 * @type {Node<vec3>}
+		 */
 		this.lightMapNode = lightMapNode;
 
 	}

src/nodes/lighting/DirectionalLightNode.js

@@ -1,6 +1,11 @@
 import AnalyticLightNode from './AnalyticLightNode.js';
 import { lightTargetDirection } from '../accessors/Lights.js';
 
+/**
+ * Module for representing directional lights as nodes.
+ *
+ * @augments AnalyticLightNode
+ */
 class DirectionalLightNode extends AnalyticLightNode {
 
 	static get type() {
@@ -9,6 +14,11 @@ class DirectionalLightNode extends AnalyticLightNode {
 
 	}
 
+	/**
+	 * Constructs a new directional light node.
+	 *
+	 * @param {DirectionalLight?} [light=null] - The directional light source.
+	 */
 	constructor( light = null ) {
 
 		super( light );

src/nodes/lighting/EnvironmentNode.js

@@ -11,6 +11,13 @@ import { pmremTexture } from '../pmrem/PMREMNode.js';
 
 const _envNodeCache = new WeakMap();
 
+/**
+ * Represents a physical model for Image-based lighting (IBL). The environment
+ * is defined via environment maps in the equirectanular, cube map or cubeUV (PMREM) format.
+ * `EnvironmentNode` is intended for PBR materials like {@link MeshStandardNodeMaterial}.
+ *
+ * @augments LightingNode
+ */
 class EnvironmentNode extends LightingNode {
 
 	static get type() {
@@ -19,10 +26,21 @@ class EnvironmentNode extends LightingNode {
 
 	}
 
+	/**
+	 * Constructs a new environment node.
+	 *
+	 * @param {Node} [envNode=null] - A node representing the environment.
+	 */
 	constructor( envNode = null ) {
 
 		super();
 
+		/**
+		 * A node representing the environment.
+		 *
+		 * @type {Node}
+		 * @default null
+		 */
 		this.envNode = envNode;
 
 	}