playcanvas/build/playcanvas.dbg/src/scene/skybox/sky-geometry.js

PlayCanvas WebGL game engine

import { Debug } from '../../core/debug.js';
import { SKYTYPE_DOME, SKYTYPE_BOX, SKYTYPE_INFINITE } from '../constants.js';
import { Mesh } from '../mesh.js';
import { BoxGeometry } from '../geometry/box-geometry.js';
import { DomeGeometry } from '../geometry/dome-geometry.js';

class SkyGeometry {
    static create(device, type) {
        switch(type){
            case SKYTYPE_BOX:
                return SkyGeometry.box(device);
            case SKYTYPE_DOME:
                return SkyGeometry.dome(device);
        }
        Debug.assert(type === SKYTYPE_INFINITE, "Unsupported sky geometry type " + type);
        return SkyGeometry.infinite(device);
    }
    static infinite(device) {
        return Mesh.fromGeometry(device, new BoxGeometry(device));
    }
    static box(device) {
        return Mesh.fromGeometry(device, new BoxGeometry({
            yOffset: 0.5
        }));
    }
    static dome(device) {
        var geom = new DomeGeometry({
            latitudeBands: 50,
            longitudeBands: 50
        });
        // remove unused normals and uvs
        geom.normals = undefined;
        geom.uvs = undefined;
        return Mesh.fromGeometry(device, geom);
    }
}

export { SkyGeometry };