diff --git a/src/geometries/SphereGeometry.ts b/src/geometries/SphereGeometry.ts
index d7ebe58..71a73d5 100644
--- a/src/geometries/SphereGeometry.ts
+++ b/src/geometries/SphereGeometry.ts
@@ -5,6 +5,10 @@ export const props = {
   radius: { type: Number, default: 1 },
   widthSegments: { type: Number, default: 12 },
   heightSegments: { type: Number, default: 12 },
+  phiStart: { type: Number, default: 0 },
+  phiLength: { type: Number, default: Math.PI * 2 },
+  thetaStart: { type: Number, default: 0 },
+  thetaLength: { type: Number, default: Math.PI },
 } as const
 
 export function createGeometry(comp: any): SphereGeometry {