No stars below horizon of landscapes

[Fred_76]

Hi!

I'm using Stellarium 64b, last version, see log file below.

I created a landscape for Nix, a satellite of Pluto and tried to simulate its small size by putting the horizon line under the central axis of the landscape.

However, when I use this landscape, no star is shown between the "image horizon" (central horizontal axis) and the image horizon.

I tried to set the flags in the [astro] section of config.ini to false :
extinction_mode_below_horizon = false
flag_extinction_below_horizon = false

but it does not change anything. Of course, I checked that this confing.ini file was really the right one...

See attached files :
- print of screen
- landscape.ini file

Fred

2015-06-27T14:59:36
Unsupported Windows version
Compiled using MSVC++ 12.0 (Visual Studio 2013)
Qt runtime version: 5.3.2
Qt compilation version: 5.3.2
Addressing mode: 64-bit
Total memory: 8061 MB (unreliable)
Total virtual memory: 134217727 MB (unreliable)
Physical memory in use: 47%
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
Processor speed: 2195 MHz
Processor name: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz
W:\Astro\Stellarium\stellarium.exe
 -------------------------------------------------------
[ This is Stellarium 0.13.3 - http://www.stellarium.org ]
[ Copyright (C) 2000-2014 Fabien Chereau et al ]
 -------------------------------------------------------
Writing log file to: "C:\Users\Serveur\AppData\Roaming\Stellarium\log.txt"
File search paths:
  0 . "C:\Users\Serveur\AppData\Roaming\Stellarium"
  1 . "."
Config file is: "C:\Users\Serveur\AppData\Roaming\Stellarium\config.ini"
Detected: OpenGL "4.2"
Driver version string: "4.2.12420 Compatibility Profile Context 13.151.0.0"
GL vendor is "ATI Technologies Inc."
GL renderer is "AMD Radeon HD 7730M"
GL Shading Language version is "4.30"
GLSL Version Number after parsing: 4.3
GLSL version is fine, we should not see a graphics problem.
Cache directory is: "C:\Users\Serveur\AppData\Local\stellarium\stellarium\cache"
Sky language is "en_US"
Application language is "en_US"
Loading Solar System data ...
Loading star data ...
"Loading ".\stars\default\stars_0_0v0_5.cat": 0_0v0_2; 4963"
"Loading ".\stars\default\stars_1_0v0_5.cat": 1_0v0_2; 21598"
"Loading ".\stars\default\stars_2_0v0_5.cat": 2_0v0_2; 150090"
"Loading ".\stars\default\stars_3_1v0_3.cat": 3_1v0_3; 428466"
"Loading "C:\Users\Serveur\AppData\Roaming\Stellarium\stars\default\stars_4_1v0_1.cat": 4_1v0_3; 1702042"
"Loading "C:\Users\Serveur\AppData\Roaming\Stellarium\stars\default\stars_5_2v0_1.cat": 5_2v0_1; 7083058"
"Loading "C:\Users\Serveur\AppData\Roaming\Stellarium\stars\default\stars_6_2v0_1.cat": 6_2v0_1; 24670782"
"Loading "C:\Users\Serveur\AppData\Roaming\Stellarium\stars\default\stars_7_2v0_1.cat": 7_2v0_1; 50733321"
"Loading "C:\Users\Serveur\AppData\Roaming\Stellarium\stars\default\stars_8_2v0_1.cat": 8_2v0_1; 92304337"
Finished loading star catalogue data, max_geodesic_level: 8
navigation/preset_sky_time is a double - treating as jday: 2.45151e+06
Loaded 10051 NGC records
Loaded 343 / 351 Barnard records
Loaded 313 / 313 Sharpless records
Loaded 158 / 158 Van den Bergh records
Loaded 181 / 181 RCW (Rodgers+) records
Loaded 1787 / 1787 LDN (Lynds' Catalogue of Dark Nebulae) records
Loaded 1125 / 1125 LBN (Lynds' Catalogue of Bright Nebulae) records
Loading NGC name data ...
Loaded 1031 / 1031 NGC name records successfully
Loading star names from ".\skycultures\western\star_names.fab"
Loaded 339 / 339 common star names
Loading star names from ".\stars\default\name.fab"
Loaded 4502 / 4502 scientific star names
Loading variable stars from ".\stars\default\gcvs_hip_part.dat"
Loaded 6916 / 6928 variable stars
Loaded 88 / 88 constellation records successfully for culture "western"
Loaded 85 / 85 constellation art records successfully for culture "western"
Loaded 88 / 88 constellation names
Loading constellation boundary data ...
Loaded 782 constellation boundary segments
Intializing basic GL shaders...
Creating GUI ...
Loaded plugin "Exoplanets"
Exoplanets: version of the format of the catalog: 1
Exoplanets: loading catalog file: "C:\Users\Serveur\AppData\Roaming\Stellarium\modules\Exoplanets\exoplanets.json"
Loaded plugin "FOV"
Loaded plugin "Novae"
Novae: version of the catalog: 1
Novae: loading catalog file: "C:\Users\Serveur\AppData\Roaming\Stellarium\modules\Novae\novae.json"
Loaded plugin "Observability"
Loaded plugin "Oculars"
Ocular plugin - press Command-O to toggle eyepiece view mode. Press ALT-o for configuration.
Oculars::validateIniFile ocular.ini exists at: "C:\Users\Serveur\AppData\Roaming\Stellarium\modules\Oculars\ocular.ini" . Checking version...
Oculars::validateIniFile found existing ini file version 3
Loaded plugin "Satellites"
Satellites: loading catalog file: "C:\Users\Serveur\AppData\Roaming\Stellarium\modules\Satellites\satellites.json"
Loaded plugin "SolarSystemEditor"
Using the ssystem.ini file that already exists in the user directory...
Unable to find module called "TimeZoneConfiguration"
Loaded plugin "TimeZoneConfiguration"

[gzotti (georg-zotti)]

it seems active landscape inhibits star drawing below -2 degrees even with atmosphere switched off. This is a bug :-( A hole in the texture should let stars come through.

[gzotti (georg-zotti)]

There is a bounding cap which inhibits stars below -2 to be drawn when landscapes are shown, which is likely applicable for 99% of landscapes.

In r7723 I have added an optional flag minimal_altitude in the landscape section of landscape.ini. You can set this to e.g. -30 to draw more (or all) of the sky below the mathematical horizon. This is also useful for potential "space station" landscapes. This will be available in the next version 0.14.

Of course, the atmosphere and extinction model still is governed by the literature derived from and describing terrestrial observations. This trick is therefore only useful for settings without atmosphere.