Achieve those yellow´ish highlights

Any easy, smart or best way to achieve this yellow´ish (high)lights
on the both areas of a sphere?


Not perfect but this example gives you an idea of a possible implementation approach:

The idea is to create two sphere meshes. One mesh visualizes the base texture, another mesh the transparent texture for highlighting. In this way, you don’t have to write a custom shader and can customize the highlighted area in tools like Photoshop or Gimp.

Very very nice - I think that works for me…

Another question btw - any chance to draw a sphere geometry (wireframe) without the diagonal lines?