iOS How to add text and pictures to the surface of the sphere (OpenGL) -


enter image description here

i want achieve effect similar top of gif(application name: star chart)

  1. i convert sphere coordinates vertex data , render texture
  2. i use method glkmatrix4makeperspective inside parameters fovyradians achieve effect of zoom

  3. i add text , pictures location on surface of panorama, not know corresponding vertex position. there way use opengl achieve effect ?

    thanks in advance!


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