import Check from "../../Core/Check.js";
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import clone from "../../Core/clone.js";
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import defined from "../../Core/defined.js";
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import BlendingState from "../BlendingState.js";
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import DepthFunction from "../DepthFunction.js";
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import ModelExperimentalUtility from "./ModelExperimentalUtility.js";
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import ModelLightingOptions from "./ModelLightingOptions.js";
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/**
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* Each node may have many mesh primitives. Most model pipeline stages operate
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* at the primitive level. Again, properties are inherited from the parent.
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*
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* @param {NodeRenderResources} nodeRenderResources The node resources to inherit from
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* @param {ModelExperimentalPrimitive} runtimePrimitive The primitive.
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*
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* @private
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*/
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export default function PrimitiveRenderResources(
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nodeRenderResources,
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runtimePrimitive
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) {
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//>>includeStart('debug', pragmas.debug);
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Check.typeOf.object("nodeRenderResources", nodeRenderResources);
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Check.typeOf.object("runtimePrimitive", runtimePrimitive);
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//>>includeEnd('debug');
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// Properties inherited from NodeRenderResources.
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/**
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* A reference to the model. Inherited from the node render resources.
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*
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* @type {ModelExperimental}
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* @readonly
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*
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* @private
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*/
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this.model = nodeRenderResources.model;
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/**
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* A reference to the runtime node. Inherited from the node render resources.
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*
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* @type {ModelExperimentalNode}
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* @readonly
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*
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* @private
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*/
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this.runtimeNode = nodeRenderResources.runtimeNode;
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/**
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* The vertex attributes. This is shallow cloned from the node render
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* resources as the primitive will add additional properties.
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*
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* @type {Object[]}
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*
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* @private
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*/
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this.attributes = nodeRenderResources.attributes.slice();
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/**
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* The index to give to the next vertex attribute added to the attributes array. POSITION
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* takes index 0. Inherited from the node render resources.
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*
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* @type {Number}
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* @readonly
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*
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* @private
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*/
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this.attributeIndex = nodeRenderResources.attributeIndex;
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/**
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* The set index to assign to feature ID vertex attribute(s) created from the offset/repeat in the feature ID attribute.
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* Inherited from the node render resources.
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*
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* @type {Number}
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*
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* @private
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*/
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this.featureIdVertexAttributeSetIndex =
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nodeRenderResources.featureIdVertexAttributeSetIndex;
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/**
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* Whether or not this primitive has feature IDs (at the node's instance or through primitive's feature ID attribute or texture).
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*
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* @type {Boolean}
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* @default false
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* @readonly
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*
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* @private
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*/
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this.hasFeatureIds = false;
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/**
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* A dictionary mapping uniform name to functions that return the uniform
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* values. Inherited from the node render resources.
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*
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* @type {Object.<String, Function>}
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* @readonly
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*
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* @private
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*/
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this.uniformMap = clone(nodeRenderResources.uniformMap);
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/**
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* Options for configuring the alpha stage such as pass and alpha mode. Inherited from the node
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* render resources.
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*
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* @type {ModelAlphaOptions}
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* @readonly
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*
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* @private
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*/
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this.alphaOptions = clone(nodeRenderResources.alphaOptions);
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/**
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* The computed model matrix for this primitive. This is cloned from the
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* node render resources as the primitive may further modify it
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*
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* @type {Matrix4}
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*
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* @private
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*/
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this.modelMatrix = nodeRenderResources.modelMatrix.clone();
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/**
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* An object used to build a shader incrementally. This is cloned from the
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* node render resources because each primitive can compute a different shader.
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*
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* @type {ShaderBuilder}
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* @readonly
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*
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* @private
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*/
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this.shaderBuilder = nodeRenderResources.shaderBuilder.clone();
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/**
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* The number of instances. Default is 0, if instancing is not used. Inherited from the node render resources.
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*
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* @type {Number}
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* @readonly
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*
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* @private
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*/
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this.instanceCount = nodeRenderResources.instanceCount;
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/**
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* A reference to the runtime node
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*
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* @type {ModelExperimentalPrimitive}
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* @readonly
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*
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* @private
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*/
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this.runtimePrimitive = runtimePrimitive;
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/**
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* The primitive associated with the render resources.
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*
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* @type {ModelComponents.Primitive}
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* @readonly
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*
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* @private
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*/
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var primitive = runtimePrimitive.primitive;
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// other properties
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/**
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* The number of indices in the primitive. The interpretation of this
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* depends on the primitive type.
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*
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* @type {Number}
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* @readonly
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*
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* @private
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*/
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this.count = defined(primitive.indices)
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? primitive.indices.count
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: ModelExperimentalUtility.getAttributeBySemantic(primitive, "POSITION")
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.count;
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/**
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* The indices for this primitive
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*
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* @type {ModelComponents.Indices}
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* @readonly
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*
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* @private
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*/
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this.indices = primitive.indices;
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/**
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* The primitive type such as TRIANGLES or POINTS
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*
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* @type {PrimitiveType}
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* @readonly
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*
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* @private
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*/
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this.primitiveType = primitive.primitiveType;
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/**
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* The bounding sphere that contains all the vertices in this primitive.
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*
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* @type {BoundingSphere}
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*/
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this.boundingSphere = ModelExperimentalUtility.createBoundingSphere(
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primitive,
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this.modelMatrix,
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nodeRenderResources.instancingTranslationMax,
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nodeRenderResources.instancingTranslationMin
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);
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/**
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* Options for configuring the lighting stage such as selecting between
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* unlit and PBR shading.
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*
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* @type {ModelLightingOptions}
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* @readonly
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*
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* @private
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*/
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this.lightingOptions = new ModelLightingOptions();
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/**
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* The shader variable to use for picking.
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*
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* @type {String}
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* @readonly
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*
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* @private
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*/
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this.pickId = undefined;
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/**
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* An object storing options for creating a {@link RenderState}.
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* the pipeline stages simply set the options, the render state is created
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* when the {@link DrawCommand} is constructed.
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*
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* @type {Object}
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* @readonly
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*
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* @private
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*/
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this.renderStateOptions = {
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depthTest: {
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enabled: true,
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func: DepthFunction.LESS_OR_EQUAL,
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},
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blending: BlendingState.DISABLED,
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};
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/**
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* An enum describing the types of draw commands needed, based on the style.
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*
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* @type {StyleCommandsNeeded}
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* @readonly
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*
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* @private
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*/
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this.styleCommandsNeeded = undefined;
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}
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