Docs: improve Promise typing (#30317)

Co-authored-by: Samuel Rigaud <srigaud@duodisplay.com>

src/nodes/code/ScriptableNode.js

@@ -416,7 +416,7 @@ class ScriptableNode extends Node {
 	 *
 	 * @param {String} name - The function name.
 	 * @param {...Any} params - A list of parameters.
-	 * @return {Any} The result of the function call.
+	 * @return {Promise<Any>} The result of the function call.
 	 */
 	async callAsync( name, ...params ) {
 

src/renderers/common/Pipelines.js

@@ -343,7 +343,7 @@ class Pipelines extends DataMap {
 	 * @param {ProgrammableStage} stageVertex - The programmable stage representing the vertex shader.
 	 * @param {ProgrammableStage} stageFragment - The programmable stage representing the fragment shader.
 	 * @param {String} cacheKey - The cache key.
-	 * @param {Array} promises - An array of compilation promises which is only relevant in context of `Renderer.compileAsync()`.
+	 * @param {Array<Promise>?} promises - An array of compilation promises which is only relevant in context of `Renderer.compileAsync()`.
 	 * @return {ComputePipeline} The compute pipeline.
 	 */
 	_getRenderPipeline( renderObject, stageVertex, stageFragment, cacheKey, promises ) {

src/renderers/common/Renderer.js

@@ -795,7 +795,7 @@ class Renderer {
 	 * @param {Object3D} scene - The scene or 3D object to precompile.
 	 * @param {Camera} camera - The camera that is used to render the scene.
 	 * @param {Scene} targetScene - If the first argument is a 3D object, this parameter must represent the scene the 3D object is going to be added.
-	 * @return {Promise} A Promise that resolves when the compile has been finished.
+	 * @return {Promise<Array>} A Promise that resolves when the compile has been finished.
 	 */
 	async compileAsync( scene, camera, targetScene = null ) {
 
@@ -2187,7 +2187,7 @@ class Renderer {
 	 *
 	 * @async
 	 * @param {Node|Array<Node>} computeNodes - The compute node(s).
-	 * @return {Promise?} A Promise that resolve when the compute has finished.
+	 * @return {Promise} A Promise that resolve when the compute has finished.
 	 */
 	async computeAsync( computeNodes ) {
 

src/renderers/common/extras/PMREMGenerator.js

@@ -135,6 +135,7 @@ class PMREMGenerator {
 	 * @param {Number} [far=100] - The far plane distance.
 	 * @param {RenderTarget?} [renderTarget=null] - The render target to use.
 	 * @return {RenderTarget} The resulting PMREM.
+	 * @see fromSceneAsync
 	 */
 	fromScene( scene, sigma = 0, near = 0.1, far = 100, renderTarget = null ) {
 
@@ -175,6 +176,21 @@ class PMREMGenerator {
 
 	}
 
+	/**
+	 * Generates a PMREM from a supplied Scene, which can be faster than using an
+	 * image if networking bandwidth is low. Optional sigma specifies a blur radius
+	 * in radians to be applied to the scene before PMREM generation. Optional near
+	 * and far planes ensure the scene is rendered in its entirety (the cubeCamera
+	 * is placed at the origin).
+	 *
+	 * @param {Scene} scene - The scene to be captured.
+	 * @param {Number} [sigma=0] - The blur radius in radians.
+	 * @param {Number} [near=0.1] - The near plane distance.
+	 * @param {Number} [far=100] - The far plane distance.
+	 * @param {RenderTarget?} [renderTarget=null] - The render target to use.
+	 * @return {Promise<RenderTarget>} The resulting PMREM.
+	 * @see fromScene
+	 */
 	async fromSceneAsync( scene, sigma = 0, near = 0.1, far = 100, renderTarget = null ) {
 
 		if ( this._hasInitialized === false ) await this._renderer.init();
@@ -191,6 +207,7 @@ class PMREMGenerator {
 	 * @param {Texture} equirectangular - The equirectangular texture to be converted.
 	 * @param {RenderTarget?} [renderTarget=null] - The render target to use.
 	 * @return {RenderTarget} The resulting PMREM.
+	 * @see fromEquirectangularAsync
 	 */
 	fromEquirectangular( equirectangular, renderTarget = null ) {
 
@@ -212,6 +229,16 @@ class PMREMGenerator {
 
 	}
 
+	/**
+	 * Generates a PMREM from an equirectangular texture, which can be either LDR
+	 * or HDR. The ideal input image size is 1k (1024 x 512),
+	 * as this matches best with the 256 x 256 cubemap output.
+	 *
+	 * @param {Texture} equirectangular - The equirectangular texture to be converted.
+	 * @param {RenderTarget?} [renderTarget=null] - The render target to use.
+	 * @return {Promise<RenderTarget>} The resulting PMREM.
+	 * @see fromEquirectangular
+	 */
 	async fromEquirectangularAsync( equirectangular, renderTarget = null ) {
 
 		if ( this._hasInitialized === false ) await this._renderer.init();
@@ -228,6 +255,7 @@ class PMREMGenerator {
 	 * @param {Texture} cubemap - The cubemap texture to be converted.
 	 * @param {RenderTarget?} [renderTarget=null] - The render target to use.
 	 * @return {RenderTarget} The resulting PMREM.
+	 * @see fromCubemapAsync
 	 */
 	fromCubemap( cubemap, renderTarget = null ) {
 
@@ -249,6 +277,16 @@ class PMREMGenerator {
 
 	}
 
+	/**
+	 * Generates a PMREM from an cubemap texture, which can be either LDR
+	 * or HDR. The ideal input cube size is 256 x 256,
+	 * with the 256 x 256 cubemap output.
+	 *
+	 * @param {Texture} cubemap - The cubemap texture to be converted.
+	 * @param {RenderTarget?} [renderTarget=null] - The render target to use.
+	 * @return {Promise<RenderTarget>} The resulting PMREM.
+	 * @see fromCubemap
+	 */
 	async fromCubemapAsync( cubemap, renderTarget = null ) {
 
 		if ( this._hasInitialized === false ) await this._renderer.init();
@@ -260,6 +298,8 @@ class PMREMGenerator {
 	/**
 	 * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
 	 * your texture's network fetch for increased concurrency.
+	 *
+	 * @returns {Promise}
 	 */
 	async compileCubemapShader() {
 
@@ -275,6 +315,8 @@ class PMREMGenerator {
 	/**
 	 * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
 	 * your texture's network fetch for increased concurrency.
+	 *
+	 * @returns {Promise}
 	 */
 	async compileEquirectangularShader() {
 

src/renderers/webgpu/WebGPUBackend.js

@@ -764,6 +764,7 @@ class WebGPUBackend extends Backend {
 	 *
 	 * @async
 	 * @param {RenderContext} renderContext - The render context.
+	 * @return {Promise} A Promise that resolves when the occlusion query results have been processed.
 	 */
 	async resolveOccludedAsync( renderContext ) {