Folks,
Since I posted a few weeks ago but no one answered mine, I was searching for cylindrical to cubemap conversion and now found one source. It came with source code and provide for splitting large planet bitmap into cubemap tiles with LOD levels. That is used for Space Engine simulator. I can port it to my own space simulator.
https://sourceforge.net/projects/cubemap/
I have a question for you. Does anyone know any similar tool like that or splitting into icosphere tiles?
Thanks,
Tim
u can always derive them yourself if u feel that u r waiting too long… however this should give u an idea of how to:
http://www.mvps.org/directx/articles/spheremap.htm
or try this:
https://www.cosc.brocku.ca/Offerings/3P98/course/lectures/texture/it's not exactly like for like for u want , but it's a starter ?
Have fun ?
Thanks for quick replies. I mean splitting large planet bitmap into cubemap or icosphere tile files.
Also I found article about making worlds by using cubemap for more information about how to write a program. I am replacing rendering routines in my space simulator with using cubemap mapping instead of cylindrical projection by elimanting some artificial issues at polar poles. Also I found a paper about HEALpix projection that NASA provides.
https://acko.net/blog/making-worlds-1-of-spheres-and-cubes/
https://healpix.jpl.nasa.gov/pdf/intro.pdf
