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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | 2294x 2293x 2292x 2292x 2292x 2292x 2292x 2292x 2292x 2292x 2292x 2292x 2292x 2292x 2292x | import Check from "../../Core/Check.js";
import clone from "../../Core/clone.js";
/**
* A model is made up of one or more nodes in the scene graph. Some details
* such as instancing are computed on a per-node basis. This class provides
* a place to store such details. It also inherits some properties from
* the model render resources.
*
* @constructor
*
* @param {ModelRenderResources} modelRenderResources The model resources to inherit
* @param {ModelRuntimeNode} runtimeNode The in-memory representation of the scene graph node.
*
* @private
*/
function NodeRenderResources(modelRenderResources, runtimeNode) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("modelRenderResources", modelRenderResources);
Check.typeOf.object("runtimeNode", runtimeNode);
//>>includeEnd('debug');
// Properties inherited from the ModelRenderResources.
/**
* A reference to the model. Inherited from the model render resources.
*
* @type {Model}
* @readonly
*
* @private
*/
this.model = modelRenderResources.model;
/**
* An object used to build a shader incrementally. This is cloned from the
* model render resources because each node can compute a different shader.
*
* @type {ShaderBuilder}
* @readonly
*
* @private
*/
this.shaderBuilder = modelRenderResources.shaderBuilder.clone();
/**
* A dictionary mapping uniform name to functions that return the uniform
* values. Inherited from the model render resources.
*
* @type {Object<string, Function>}
* @readonly
*
* @private
*/
this.uniformMap = clone(modelRenderResources.uniformMap);
/**
* Options for configuring the alpha stage such as pass and alpha cutoff.
* Inherited from the model render resources.
*
* @type {ModelAlphaOptions}
* @readonly
*
* @private
*/
this.alphaOptions = clone(modelRenderResources.alphaOptions);
/**
* 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. Inherited from the model
* render resources.
*
* @type {object}
* @readonly
*
* @private
*/
this.renderStateOptions = clone(
modelRenderResources.renderStateOptions,
true,
);
/**
* Whether the model has a silhouette. This value indicates what draw commands
* are needed. Inherited from the model render resources.
*
* @type {boolean}
* @readonly
*
* @private
*/
this.hasSilhouette = modelRenderResources.hasSilhouette;
/**
* Whether the model is part of a tileset that uses the skipLevelOfDetail
* optimization. This value indicates what draw commands are needed.
* Inherited from the model render resources.
*
* @type {boolean}
* @readonly
*
* @private
*/
this.hasSkipLevelOfDetail = modelRenderResources.hasSkipLevelOfDetail;
// Other properties.
/**
* A reference to the runtime node
*
* @type {ModelRuntimeNode}
* @readonly
*
* @private
*/
this.runtimeNode = runtimeNode;
/**
* An array of objects describing vertex attributes that will eventually
* be used to create a {@link VertexArray} for the draw command. Attributes
* at the node level may be needed for extensions such as EXT_mesh_gpu_instancing.
*
* @type {object[]}
* @readonly
*
* @private
*/
this.attributes = [];
/**
* The index to give to the next vertex attribute added to the attributes array.
* POSITION takes index 0.
*
* @type {number}
*
* @private
*/
this.attributeIndex = 1;
/**
* The set index to assign to feature ID vertex attribute(s) created from the
* offset/repeat in the feature ID attribute.
*
* @type {number}
* @default 0
*
* @private
*/
this.featureIdVertexAttributeSetIndex = 0;
/**
* The number of instances. This value is set by InstancingPipelineStage.
*
* @type {number}
* @default 0
*
* @private
*/
this.instanceCount = 0;
/**
* The PrimitiveRenderResources for the primitives of the node.
*
* @type {PrimitiveRenderResources[]}
* @default []
*
* @private
*/
this.primitiveRenderResources = [];
}
export default NodeRenderResources;
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