playcanvas/build/playcanvas.dbg/src/scene/geometry/geometry.js

PlayCanvas WebGL game engine

import { Debug } from '../../core/debug.js';
import { calculateNormals, calculateTangents } from './geometry-utils.js';

/**
 * The Geometry class serves as a container for storing geometric information. It encapsulates data
 * such as positions, normals, colors, and indices.
 *
 * @category Graphics
 */ class Geometry {
    /**
     * Generates normal information from the positions and triangle indices.
     */ calculateNormals() {
        Debug.assert(this.positions, 'Geometry must have positions set');
        Debug.assert(this.indices, 'Geometry must have indices set');
        this.normals = calculateNormals(this.positions, this.indices);
    }
    /**
     * Generates tangent information from the positions, normals, texture coordinates and triangle
     * indices.
     */ calculateTangents() {
        Debug.assert(this.positions, 'Geometry must have positions set');
        Debug.assert(this.normals, 'Geometry must have normals set');
        Debug.assert(this.uvs, 'Geometry must have uvs set');
        Debug.assert(this.indices, 'Geometry must have indices set');
        this.tangents = calculateTangents(this.positions, this.normals, this.uvs, this.indices);
    }
}

export { Geometry };