exporting half an unwrapped icosphere to create geodesic map projection

Asked Apr 03 '19 at 07:56

Active Apr 03 '19 at 10:44

Viewed 211 times

I'm trying to create a map projection of the northern hemisphere of the night sky on a geodesic dome. I naturally thought, "I can just project it as a material on an icosphere in Blender and then unwrap it!" but apparently it isn't that simple. (I'm new to Blender.)

This is the closest I've gotten to a "net" for the dome, but I don't know how to export it as an image I can cut out and turn into a physical dome that doesn't distort the constellations or cut any stars out.

Any help would be much appreciated!!

edited Apr 03 '19 at 10:44

asked Apr 03 '19 at 07:56

Rúnatál Davino

Reword your question as it seems to be about exporting, not unwrapping. And why don't you unwrap a UV sphere? – Lukasz-40sth Apr 03 '19 at 09:12
@Lukasz-40sth i'm going to build a geodesic dome out of the net – Rúnatál Davino Apr 03 '19 at 10:34
If you're happy with the projection, you might want to look at the shipped 'Paper Model' add-on. It will unwrap in a way suitable for folding, and bake textures to the UV it constructs. – Robin Betts Apr 03 '19 at 11:03
Do you know the projection your night sky image .. eg Mercator. Related https://astronomy.stackexchange.com/questions/18219/map-projections-used-for-star-maps – batFINGER Apr 03 '19 at 11:39
@batFINGER equirectangular! – Rúnatál Davino Apr 03 '19 at 11:50
@RobinBetts thank you! that's exactly what I need. – Rúnatál Davino Apr 03 '19 at 11:50

exporting half an unwrapped icosphere to create geodesic map projection

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