Celestia Forums

The EDU version is for Windows, but anyway the executable is in this place on a Mac:

Celestia.app/Contents/MacOS/Celestia

Also, the file system is case insensitive and you can invoke programs with any case.

Virtual Textures are a nice touch, but only necessary at higher resolutions. Well, when I use non-VT I see a polar pinch effect which disappears converting the same texture to VT. You might find this one interesting: I found a map of Earth's sea ice at 16k resolution! I will use it to check the fin...

You might as well use more wide-scale noise to cover up the low resolution artifacts.

Working on that. In the meantime, I made a release without noise at 4k:

Progress: use daily concentration data instead of monthly extent data (makes sense since one is looking at the Earth in a precise moment) and added some noise:

Dxt5nm is not a special dds file? How can it be a separate file type? I encountered the same "shadow" problem when using DXT5nm for the first time, I suppose that it is just Celestia that interprets a file as DXT5nm only if it has the extension dxt5nm, otherwise she falls back to another ...

Progress: a) Problem (1) solved by expanding in a proper way the "ice contagion". b) Problem (3) solved by using BMNG above 78.4° and below -65.2° to cut the ice along the coast. There are still some artifacts but they can be reduced by calibrating the response function. Maybe you can use ...

I made some progress. In the SII maps I consider coastline pixels as ice if they are near an ice pixel (also along diagonal). Then I change projection and increase image size with a smooth resampling. Finally, I use altimetry data to cut ice along the coasts. Here the result for January 2004 at 4k; ...

Ok, I found the problem, it is my dds normal map, with the same normal map in png the speckles go away. Anyway, here the speckles (open the image to see them):

SpecularPower 120

Do you mean 12.0? With 120 I get a herd of white speckles.

you could name the alternate textures "Janurary", "February", "March" ... instead of "month-01", "month-02" etc. I use numbers to keep scripts simple, I'm too lazy to write 12 words :smile:. there seem to be a few useless files in the zip and a doub...

I made an add-on that switches Earth's texture as time passes to simulate seasonal changes. How to do this had already been described in https://celestiaproject.net/forum/viewtopic.php?f=4&t=15909 , but I did not found a packaged add-on. This add-on works standalone with a script or alongside lu...

I tried Cham's release on my system: macos 10.12.2, intel hd graphics 3000 350 MB. It effectively does not crash when reaching a memory threshold as the 32 bit version, but it crashes on: * loading non-VT textures 8k and above (a problem I also have on official 1.6.1); * SPICE files *.bsp (I don't k...