A class for generating sphere geometries.
const geometry = new v3d.SphereGeometry(15, 32, 16);
const material = new v3d.MeshBasicMaterial({ color: 0xffff00 });
const sphere = new v3d.Mesh(geometry, material);
app.scene.add(sphere);
radius — sphere radius. Default is 1.
widthSegments — number of horizontal segments. Minimum value is 3, and the default is 32.
heightSegments — number of vertical segments. Minimum value is 2, and the default is 16.
phiStart — specify horizontal starting angle. Default is 0.
phiLength — specify horizontal sweep angle size. Default is 2π (2*Math.PI).
thetaStart — specify vertical starting angle. Default is 0.
thetaLength — specify vertical sweep angle size. Default is π (Math.PI).
Procedural geometry is fun. However, in real life applications this feature is rarely needed. It would be more efficient do design spheres in the preferred modelling suite and export/load to Verge3D via glTF.
The geometry is created by sweeping and calculating vertexes around the Y axis (horizontal sweep) and the Z axis (vertical sweep). Thus, incomplete spheres (akin to 'sphere slices') can be created through the use of different values of phiStart, phiLength, thetaStart and thetaLength, in order to define the points in which we start (or end) calculating those vertices.
See the base BufferGeometry class for common properties.
An object with a property for each of the constructor parameters. Any modification after instantiation does not change the geometry.
See the base BufferGeometry class for common methods.
For more info on how to obtain the source code of this module see this page.