@itwin/core-frontend/lib/cjs/common/internal/render/VertexTable.d.ts

iTwin.js frontend components

/** @packageDocumentation
 * @module Rendering
 */
import { ColorDef, FeatureIndexType, QParams2d, QParams3d } from "@itwin/core-common";
/** Describes a VertexTable.
 * @internal
 */
export interface VertexTable {
    /** The rectangular array of vertex data, of size width*height*numRgbaPerVertex bytes. */
    readonly data: Uint8Array;
    /** If true, positions are not quantized but instead stored as 32-bit floats.
     * [[qparams]] will still be defined; it can be used to derive the range of positions in the table.
     */
    readonly usesUnquantizedPositions?: boolean;
    /** Quantization parameters for the vertex positions encoded into the array, if the positions are quantized;
     * and for deriving the range of positions in the table, whether quantized or not.
     */
    readonly qparams: QParams3d;
    /** The number of 4-byte 'RGBA' values in each row of the array. Must be divisible by numRgbaPerVertex. */
    readonly width: number;
    /** The number of rows in the array. */
    readonly height: number;
    /** Whether or not the vertex colors contain translucent colors. */
    readonly hasTranslucency: boolean;
    /** If no color table exists, the color to use for all vertices. */
    readonly uniformColor?: ColorDef;
    /** Describes the number of features (none, one, or multiple) contained. */
    readonly featureIndexType: FeatureIndexType;
    /** If featureIndexType is 'Uniform', the feature ID associated with all vertices. */
    readonly uniformFeatureID?: number;
    /** The number of vertices in the table. Must be less than (width*height)/numRgbaPerVertex. */
    readonly numVertices: number;
    /** The number of 4-byte 'RGBA' values associated with each vertex. */
    readonly numRgbaPerVertex: number;
    /** If vertex data include texture UV coordinates, the quantization params for those coordinates. */
    readonly uvParams?: QParams2d;
}
/** @internal */
export interface Dimensions {
    width: number;
    height: number;
}
/** @internal */
export declare function computeDimensions(nEntries: number, nRgbaPerEntry: number, nExtraRgba: number, maxSize: number): Dimensions;
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