Hi Team, Again I have another issue in my charting library. I have to develop a pie chart like library in 3D space. So I have created sphere and applied muti materials. But to may bad luck it was never come out as expected Please check few base codes at http://www.babylonjs.com/playground/#28EUMN#1. I expect the sphere to fill as per expected image. I have implemnted the same with texture, but we cant make that interactive. So i am thiking about a better solution Also as I am calculating below based on user input, it not rendering well(some times, full rendering, sometimes one block missing etc) sphere.subMeshes.push(new BABYLON.SubMesh(0, 0, verticesCount, 0, 900, sphere));Ideally, could you please explain how vertices/indexes play this rendering. Note: Expected output(one with legend)