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Post by The Astronomer on Sept 23, 2017 9:59:13 GMT
Can I have a version of skybox generated with textures which includes the inclination of the Solar System relative to the galactic plane? svs.gsfc.nasa.gov/3572
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Post by thorneel on Sept 23, 2017 12:26:21 GMT
Does anyone knows if we can get rid of this rather awful blur on stars by modifying one of those shaders, please? It's under BLUR and BLUR_CROSS in the PostProcess.frag. Modifying those seems to do the job. Any pointers on what exactly I should change, please? Flailing around there have only resulted in the game not launching so far...
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Post by jtyotjotjipaefvj on Sept 23, 2017 13:15:57 GMT
It's under BLUR and BLUR_CROSS in the PostProcess.frag. Modifying those seems to do the job. Any pointers on what exactly I should change, please? Flailing around there have only resulted in the game not launching so far... You have to make a valid GLSL shader. If the shader compiler produces any errors, the game fails to launch completely with no hits at what caused those errors. You could look up some shader tutorials for openGL but it's a terrible way to do it if you don't already know how to write GLSL.
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Post by Rocket Witch on Sept 30, 2017 15:30:46 GMT
I tried out a blank StarChart.txt. There's something scary about it, somehow.
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Post by The Astronomer on Sept 30, 2017 15:34:35 GMT
I tried out a blank StarChart.txt. There's something scary about it, somehow. "Where's everyone?" "There's no one. There's just us in this universe."
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Post by Kerr on Sept 30, 2017 15:50:28 GMT
I tried out a blank StarChart.txt. There's something scary about it, somehow. That's how I imagine how the night sky will look in the far future. The expansion of the universe redshifting the light of distant stars further and further until the night sky until it becomes dark for eternity. The only light sources left are artificial in nature, most stars died long ago and new stars can't be born, the last life forms trying desperate to stay alive within a dead universe.
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Post by Rocket Witch on Jan 1, 2018 21:45:31 GMT
tukuro Would a version of the star chart depicting the view from the Magellanic Clouds be possible to make?
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feld
New Member
Posts: 45
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Post by feld on Sept 20, 2019 17:53:01 GMT
Folks, Resurrecting this thread because: 1.) I can no longer get the d/l links above to work and I desire this mod for my very-own-self. 2.) It seems to be the best place to store skybox modding questions for future reference. I want to put this image into my game as the skybox with the Milky Way (orange-ish line from left to right) and the zodiacal light (blue-ish "S" curve running thru the center of the image) aligned with the plane of the Solar ecliptic. Can anyone give me some pointers on how to do that? Thanks in advance for any help that can be provided. v/r feld
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Post by walterscientist on Sept 24, 2019 23:38:20 GMT
Im looking into possibilities for rendering realistic star sky in way similar to Orbiter and CoaDE (not sure) - rendering individual stars based on a star catalog data - is there anybody knowledgeable who would advice me where and how to get such star catalog data - I found only web forms where I can query about particular spot in sky, which is useless for this purpose. vizier.u-strasbg.fr/viz-bin/VizieR
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Post by cipherpunks on Sept 25, 2019 9:43:25 GMT
Irendering individual stars based on a star catalog data - is there anybody knowledgeable who would advice me where and how to get such star catalog data Start with Sloan's surveys maybe? There actually are a ton of such catalogs available for download, there are even common formats between some of them. Be aware that some data formats are uncompressed locally; if you need great many of stars - then I'd recommend using ZFS to host them (it supports transparent compression with lz4 or - better - zstd; I recommend the latter with like 13th level or so, if it's available for your platform already) Edited to add: I recalled that back in the day I was using Celestia with its HUD turned off and different star catalog data loaded in; this way I could make screenshots of various regions in the sky easily, albeit from Sol PoV or not. There was some trick to render really big images that way, but I forgot how exactly. Maybe via sizing its window to cover large virtual desktop?...
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feld
New Member
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Post by feld on Sept 25, 2019 15:41:40 GMT
Darn. So anyone know where to get the OP's skybox file or how to orient a picture wrt the plane of the ecliptic?
V/R feld
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feld
New Member
Posts: 45
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Post by feld on Sept 25, 2019 16:17:14 GMT
Im looking into possibilities for rendering realistic star sky in way similar to Orbiter and CoaDE (not sure) - rendering individual stars based on a star catalog data - is there anybody knowledgeable who would advice me where and how to get such star catalog data - I found only web forms where I can query about particular spot in sky, which is useless for this purpose. vizier.u-strasbg.fr/viz-bin/VizieROk, so you know about Winchell Chung's Atomic Rocket site, right? Turns out he has an interest in starmaps. www.projectrho.com/public_html/starmaps/I believe there is a section on that website answering your question precisely but I regret that I have not the time to find it and that I read it years ago. Winch is really nice and if you have trouble contact him or ask here again and ill try to help V/R feld
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Post by walterscientist on Sept 25, 2019 22:54:05 GMT
Well, this is kinda weird - I tried downloading several different catalogs from Vizier. Plain text files seem to be ok, but there is no straightforward way how to read them AFAIK. FITS files should be most compatible, but I tried all viewers that I could find including FITS Liberator and they all say the downloaded FITS files have incorrect format. I am somewhat puzzled what could be the problem.
(as a sidenote, I realize I could eventually figure this stuff by myself, but I am kinda strapped for time right now and this seems like stuff somebody definitely has to know)
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Post by cipherpunks on Sept 25, 2019 23:00:53 GMT
no offence, but please make sure that unicode BOM (if any), line endings and space/tab indents (if any) are in correct format (e.g. UNIX LF vs DOS CR/LF etc) in those FITS files. Last time I stumbled upon this file format, I recall I used some slow Python tools called AstroPy
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Post by Bini on Dec 26, 2019 15:19:48 GMT
Is it now possible to replace the background?
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