Drawing 3D hemispheres?

I need to visualize radar volumes that often take the form of a hemisphere or section of a sphere.

Aside from drawing individual polylines to outline these forms in a grid-like manner, is there a way to generate it as a 3D polygon that can be filled with color?

You may be interested in a commercial offering from AGI that includes support for rendering sensor domes directly: https://cesium.agi.com/products/cesium-pro/default.aspx