horizonator for Mars data

[betogulliver]

Has anybody used "horizonator" to render Mars DEM data? if so, which DEM data did you use? what modifications where necessary to adapt 'horizonator' for Mars? (horizonator-lib.c Rearth = XXX)

any pointers/ideas/code is much appreciated. thank

[dkogan]

betogulliver @.***> writes:

Has anybody used "horizonator" to render Mars DEM data?

Yes: https://www-robotics.jpl.nasa.gov/media/documents/Toward_Autonomous_Localization_of_Planetary_Robotic_Explorers_by_Relying_on_Se_JoTX19T.pdf

if so, which DEM data did you use?

Kyle (one of the authors) did this work; you should ask him.

what modifications where necessary to adapt 'horizonator' for Mars? (horizonator-lib.c Rearth = XXX)

I recall the modifications were minor; just stuff to use a different DEM format

[betogulliver]

thanks for the update and for horizonator!

I'll ask Kyle for details.

[betogulliver]

I tried to contact Kyle. unfortunatelly no response (yet).

anyone else?

[dkogan]

What are you trying to do? Do you have Mars data? What is it, and where did you get it?

[betogulliver]

thanks for asking.

I'm trying to use data from here: https://astrogeology.usgs.gov/search/map/mars_mgs_mola_mex_hrsc_blended_dem_global_200m

11GB and before downloading it I wonder is this will (with minor adaptations) serve as good input for 'horizonator'.

if you know of any other Mars DEM data, please let me know.

[dkogan]

I don't remember where our DEM came from. Any data that can be massaged into a regular grid can work. The current code accepts SRTM data, so anything that can look like that will work. The code we used had a preprocessing step to massage the data into SRTM-like input, and this was fed into the horizonator. I don't know about the particular dataset you're linking. But 11GB isn't a huge amount, and I would just try it.

[betogulliver]

thanks for the update.

I'll then try to make the above (11GB) data work for horizonator.