@itwin/core-frontend/lib/esm/internal/render/GraphicTemplateImpl.js

iTwin.js frontend components

/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
/** @packageDocumentation
 * @module Rendering
 */
import { _batch, _branch, _implementationProhibited, _nodes } from "../../common/internal/Symbols";
/** Create a GraphicTemplate.
 * If the caller specifies `noDispose` as `true`, every RenderGeometry in every node will be marked `noDispose`;
 * this permits the same template to be reused by multiple graphics. The garbage collector will reclaim its
 * WebGL resources and its `dispose` method will do nothing.
 * The `isInstancable` flag will be calculated from the nodes and their geometry.
 * @internal
 */
export function createGraphicTemplate(args) {
    let isInstanceable = true;
    for (const node of args.nodes) {
        if (node.instances) {
            isInstanceable = false;
        }
        for (const geometry of node.geometry) {
            geometry.noDispose = args.noDispose;
            if (!geometry.isInstanceable) {
                isInstanceable = false;
            }
        }
    }
    return {
        [_implementationProhibited]: undefined,
        isInstanceable,
        [_nodes]: args.nodes,
        [_batch]: args.batch,
        [_branch]: args.branch,
    };
}
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