Add existing to tracked

node_modules/@cesium/engine/Source/Scene/Model/ModelRenderResources.js

@@ -0,0 +1,119 @@
+import Check from "../../Core/Check.js";
+import ModelAlphaOptions from "./ModelAlphaOptions.js";
+import RenderState from "../../Renderer/RenderState.js";
+import ShaderBuilder from "../../Renderer/ShaderBuilder.js";
+import DepthFunction from "../DepthFunction.js";
+
+/**
+ * Model render resources are for setting details that are consistent across
+ * the entire model.
+ *
+ * @constructor
+ * @param {Model} model The model that will be rendered
+ *
+ * @private
+ */
+function ModelRenderResources(model) {
+  //>>includeStart('debug', pragmas.debug);
+  Check.typeOf.object("model", model);
+  //>>includeEnd('debug');
+
+  /**
+   * An object used to build a shader incrementally. Each pipeline stage
+   * may add lines of shader code to this object.
+   *
+   * @type {ShaderBuilder}
+   * @readonly
+   *
+   * @private
+   */
+  this.shaderBuilder = new ShaderBuilder();
+
+  /**
+   * A reference to the model.
+   *
+   * @type {Model}
+   * @readonly
+   *
+   * @private
+   */
+  this.model = model;
+
+  /**
+   * A dictionary mapping uniform name to functions that return the uniform
+   * values.
+   *
+   * @type {Object<string, Function>}
+   * @readonly
+   *
+   * @private
+   */
+  this.uniformMap = {};
+
+  /**
+   * Options for configuring the alpha stage such as pass and alpha cutoff.
+   *
+   * @type {ModelAlphaOptions}
+   * @readonly
+   *
+   * @private
+   */
+  this.alphaOptions = new ModelAlphaOptions();
+
+  /**
+   * An object storing options for creating a {@link RenderState}.
+   * The pipeline stages simply set the options, the render state is created
+   * when the {@link DrawCommand} is constructed.
+   *
+   * @type {object}
+   * @readonly
+   *
+   * @private
+   */
+  this.renderStateOptions = RenderState.getState(
+    RenderState.fromCache({
+      depthTest: {
+        enabled: true,
+        func: DepthFunction.LESS_OR_EQUAL,
+      },
+    }),
+  );
+
+  /**
+   * Whether the model has a silhouette. This value indicates what draw commands
+   * are needed and is set by ModelSilhouettePipelineStage.
+   *
+   * @type {boolean}
+   * @default false
+   *
+   * @private
+   */
+  this.hasSilhouette = false;
+
+  /**
+   * Whether the model is part of a tileset that uses the skipLevelOfDetail
+   * optimization. This value indicates what draw commands are needed and
+   * is set by TilesetPipelineStage.
+   *
+   * @type {boolean}
+   * @default false
+   *
+   * @private
+   */
+  this.hasSkipLevelOfDetail = false;
+
+  /**
+   * The NodeRenderResources for the nodes of the scene graph.
+   *
+   * Note that elements of this array may be <code>undefined</code> when
+   * there was no runtime node for a certain node.
+   *
+   * @type {NodeRenderResources[]}
+   * @default []
+   *
+   * @private
+   */
+  this.nodeRenderResources = [];
+}
+
+export default ModelRenderResources;