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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 | 1x 1775x 1775x 1775x 1775x 1775x 1775x 4x 1771x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 13x 13x 13x 1762x 1762x 1762x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 1775x 4x 1771x 1771x 84x 1687x 1687x | import BoundingSphere from "../../Core/BoundingSphere.js"; import clone from "../../Core/clone.js"; import defined from "../../Core/defined.js"; import Matrix4 from "../../Core/Matrix4.js"; import DrawCommand from "../../Renderer/DrawCommand.js"; import RenderState from "../../Renderer/RenderState.js"; import SceneMode from "../SceneMode.js"; import ShadowMode from "../ShadowMode.js"; import ClassificationModelDrawCommand from "./ClassificationModelDrawCommand.js"; import ModelDrawCommand from "./ModelDrawCommand.js"; import VertexArray from "../../Renderer/VertexArray.js"; import ModelVS from "../../Shaders/Model/ModelVS.js"; import ModelFS from "../../Shaders/Model/ModelFS.js"; import ModelUtility from "./ModelUtility.js"; import DeveloperError from "../../Core/DeveloperError.js"; /** * Internal functions to build draw commands for models. * * (The core of these functions was taken from `buildDrawCommand.js´, * as of commit hash 7b93161da1cc03bdc796b204e7aa51fb7acebf04) * * @private */ function ModelDrawCommands() {} /** * Builds the {@link ModelDrawCommand} for a {@link ModelRuntimePrimitive} * using its render resources. If the model classifies another asset, it * builds a {@link ClassificationModelDrawCommand} instead. * * @param {PrimitiveRenderResources} primitiveRenderResources The render resources for a primitive. * @param {FrameState} frameState The frame state for creating GPU resources. * @returns {ModelDrawCommand|ClassificationModelDrawCommand} The generated ModelDrawCommand or ClassificationModelDrawCommand. * * @private */ ModelDrawCommands.buildModelDrawCommand = function ( primitiveRenderResources, frameState, ) { const shaderBuilder = primitiveRenderResources.shaderBuilder; const shaderProgram = createShaderProgram( primitiveRenderResources, shaderBuilder, frameState, ); const command = buildDrawCommandForModel( primitiveRenderResources, shaderProgram, frameState, ); const model = primitiveRenderResources.model; const hasClassification = defined(model.classificationType); if (hasClassification) { return new ClassificationModelDrawCommand({ primitiveRenderResources: primitiveRenderResources, command: command, }); } return new ModelDrawCommand({ primitiveRenderResources: primitiveRenderResources, command: command, }); }; /** * @private */ function createShaderProgram( primitiveRenderResources, shaderBuilder, frameState, ) { shaderBuilder.addVertexLines(ModelVS); shaderBuilder.addFragmentLines(ModelFS); const model = primitiveRenderResources.model; const shaderProgram = shaderBuilder.buildShaderProgram(frameState.context); model._pipelineResources.push(shaderProgram); return shaderProgram; } /** * Builds the {@link DrawCommand} that serves as the basis for either creating * a {@link ModelDrawCommand} or a {@link ModelRuntimePrimitive} * * @param {PrimitiveRenderResources} primitiveRenderResources The render resources for a primitive. * @param {ShaderProgram} shaderProgram The shader program * @param {FrameState} frameState The frame state for creating GPU resources. * * @returns {DrawCommand} The generated DrawCommand, to be passed to * the ModelDrawCommand or ClassificationModelDrawCommand * * @private */ function buildDrawCommandForModel( primitiveRenderResources, shaderProgram, frameState, ) { const indexBuffer = getIndexBuffer(primitiveRenderResources); const vertexArray = new VertexArray({ context: frameState.context, indexBuffer: indexBuffer, attributes: primitiveRenderResources.attributes, }); const model = primitiveRenderResources.model; model._pipelineResources.push(vertexArray); const pass = primitiveRenderResources.alphaOptions.pass; const sceneGraph = model.sceneGraph; const is3D = frameState.mode === SceneMode.SCENE3D; let modelMatrix, boundingSphere; if (!is3D && !frameState.scene3DOnly && model._projectTo2D) { modelMatrix = Matrix4.multiplyTransformation( sceneGraph._computedModelMatrix, primitiveRenderResources.runtimeNode.computedTransform, new Matrix4(), ); const runtimePrimitive = primitiveRenderResources.runtimePrimitive; boundingSphere = runtimePrimitive.boundingSphere2D; } else { const computedModelMatrix = is3D ? sceneGraph._computedModelMatrix : sceneGraph._computedModelMatrix2D; modelMatrix = Matrix4.multiplyTransformation( computedModelMatrix, primitiveRenderResources.runtimeNode.computedTransform, new Matrix4(), ); boundingSphere = BoundingSphere.transform( primitiveRenderResources.boundingSphere, modelMatrix, ); } // Initialize render state with default values let renderState = clone( RenderState.fromCache(primitiveRenderResources.renderStateOptions), true, ); renderState.cull.face = ModelUtility.getCullFace( modelMatrix, primitiveRenderResources.primitiveType, ); renderState = RenderState.fromCache(renderState); const hasClassification = defined(model.classificationType); const castShadows = hasClassification ? false : ShadowMode.castShadows(model.shadows); const receiveShadows = hasClassification ? false : ShadowMode.receiveShadows(model.shadows); // Pick IDs are only added to specific draw commands for classification. // This behavior is handled by ClassificationModelDrawCommand. const pickId = hasClassification ? undefined : primitiveRenderResources.pickId; const command = new DrawCommand({ boundingVolume: boundingSphere, modelMatrix: modelMatrix, uniformMap: primitiveRenderResources.uniformMap, renderState: renderState, vertexArray: vertexArray, shaderProgram: shaderProgram, cull: model.cull, pass: pass, count: primitiveRenderResources.count, owner: model, pickId: pickId, pickMetadataAllowed: true, instanceCount: primitiveRenderResources.instanceCount, primitiveType: primitiveRenderResources.primitiveType, debugShowBoundingVolume: model.debugShowBoundingVolume, castShadows: castShadows, receiveShadows: receiveShadows, }); return command; } /** * @private */ function getIndexBuffer(primitiveRenderResources) { const wireframeIndexBuffer = primitiveRenderResources.wireframeIndexBuffer; if (defined(wireframeIndexBuffer)) { return wireframeIndexBuffer; } const indices = primitiveRenderResources.indices; if (!defined(indices)) { return undefined; } //>>includeStart('debug', pragmas.debug); Iif (!defined(indices.buffer)) { throw new DeveloperError("Indices must be provided as a Buffer"); } //>>includeEnd('debug'); return indices.buffer; } export default ModelDrawCommands; |