Project "Celestia Origin", release dated December 30, 2017
- Gurren Lagann
- Posts: 434
- Joined: 31.01.2018
- Age: 18
- With us: 6 years 9 months
- Location: State of Rio de Janeiro, Brazil
Don't worry, John still doesn't understand some things about Celestia (like how to show planets beyond a light-year)
"The tomorrow we're trying to reach is not a tomorrow you had decided on!"
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
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Topic authorArt Blos
- Moderator
- Posts: 1149
- Joined: 31.08.2017
- Age: 32
- With us: 7 years 2 months
- Location: Volgodonsk, Rostov Oblast, Russia
I completely agree. Problems can occur only when using a format DDS. In other formats allowed different image resolution.FarGetaNik wrote:John, is there really a good reason to only use power-of-2 textures? I've never had any problems or performance issues with non-power-of-2 textures. Sometimes the source material is in a different size and rescaling it either negatively effects image quality or file size.
Founder and head of the project "Celestia Origin"
How much of a problem there is will be determined by the graphics hardware. Some graphics chipsets cannot handle non-power-of-two textures at all. When Celestia detects that limitation, it down-scales the surface texture images so that the results are smaller images which are a factor of two on a side. There will be a performance degradation and increased memory usage while the new textures are being generated. The results can also have visual anomalies because of the reduced resolutions of all of the textures being applied to each object.
Selden
- Gurren Lagann
- Posts: 434
- Joined: 31.01.2018
- Age: 18
- With us: 6 years 9 months
- Location: State of Rio de Janeiro, Brazil
Incredible! How long did you took?
"The tomorrow we're trying to reach is not a tomorrow you had decided on!"
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- Gurren Lagann
- Posts: 434
- Joined: 31.01.2018
- Age: 18
- With us: 6 years 9 months
- Location: State of Rio de Janeiro, Brazil
Oh my, 2 months?! I would had taken 5-7 years...
"The tomorrow we're trying to reach is not a tomorrow you had decided on!"
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- Simon the Digger
"Nothing is impossible for me, as long I'm determinated to keep moving forward!"
"If other people aren't going to do it, I'm going to do it myself!"
- Me (Gurren)
Current major projects:
- Aur Cir
- Cel+
- Project Sisyphus
- Populating the Local Group
- An galaxy generator
- FarGetaNik
- Posts: 484
- Joined: 05.06.2012
- With us: 12 years 5 months
- Location: Germany
Wow how did you match the contrast, hue and color balance for these textures? For the lack of an absolute reference and highly individual color channels and surface structures that change for each texture, it took me much effort to get close to a consistent result. Even then, I never completed the set with my newest findings.
- Askaniy
- Posts: 63
- Joined: 17.09.2017
- Age: 21
- With us: 7 years 2 months
- Location: Saint Petersburg, Russia
- Contact:
Yes, this is a big problem. These textures are not real colors, but are close to them. I was based on photos with high veracity of a realistic view of Jupiter.FarGetaNik wrote:For the lack of an absolute reference and highly individual color channels and surface structures that change for each texture, it took me much effort to get close to a consistent result.
Celestia Origin project member; GitHub: github.com/Askaniy, Flickr: flic.kr/ps/3X3sC2, DeviantArt: deviantart.com/askaniy
Art Blos, you know how you added 10 globular clusters to the Magellanic Clouds? Can you update NGC 121 with this new definition, which includes results from Glatt et al. (2009):
By the way, I'm trying to add globular clusters to the Andromeda Galaxy right now. However, globular clusters are not located in the plane of the galaxy, so I need real values from scientific papers. Of all the parameters, this is the real bottleneck. The search for luminosities in the V band continues...
Code: Select all
# Note: King concentration index, core radius, and distance for NGC 121 are from here:
# Structural Parameters of Seven Small Magellanic Cloud Intermediate-Age and Old Star
# Clusters
# http://adsabs.harvard.edu/abs/2009AJ....138.1403G
# These were fit to surface-brightness profiles.
Globular "NGC 121:ESO 50-12"
{
RA 0.4478528 # hours
Dec -71.5225806 # degrees
Distance 2.12e+05 # ly
Radius 175 # ly (from 3.5 arcmin)
CoreRadius 0.2 # arcmin
KingConcentration 1.25 # c = log10(r_t/r_c)
AbsMag -7.6871 # V mags
Axis [ -0.7429 -0.2364 -0.6263]
Angle 175.9 # degrees
InfoURL "http://simbad.u-strasbg.fr/sim-id.pl?Ident=NGC+121"
}
By the way, I'm trying to add globular clusters to the Andromeda Galaxy right now. However, globular clusters are not located in the plane of the galaxy, so I need real values from scientific papers. Of all the parameters, this is the real bottleneck. The search for luminosities in the V band continues...
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Topic authorArt Blos
- Moderator
- Posts: 1149
- Joined: 31.08.2017
- Age: 32
- With us: 7 years 2 months
- Location: Volgodonsk, Rostov Oblast, Russia
I do not understand your sentence. These is parameters are ready? Or you asking me to update them?LukeCEL wrote:Art Blos, you know how you added 10 globular clusters to the Magellanic Clouds? Can you update NGC 121 with this new definition, which includes results from Glatt et al. (2009):
Founder and head of the project "Celestia Origin"
- toutatis
- Posts: 744
- Joined: 24.02.2018
- Age: 55
- With us: 6 years 8 months
- Location: Almaty, Kazakhstan
I want to suggest an Add-on to Celestia that I wrote... this Add-on called "PHA (Potentially Hazardous Asteroids)"... the folder contains ssc and xyz-files... Currently it will displays 1500 potentially hazardous objects ... and it will more with each day! ... Parameters of the orbits for the epoch 2458200,5 (March 23, 2018, 00: 00TDB)... Works with Celestia Origin too...
Last edited by toutatis on 05.04.2018, 02:10, edited 1 time in total.
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Topic authorArt Blos
- Moderator
- Posts: 1149
- Joined: 31.08.2017
- Age: 32
- With us: 7 years 2 months
- Location: Volgodonsk, Rostov Oblast, Russia
I'll ask differently.LukeCEL wrote:I am asking you to update them, yes.
The code that you provided in the message, must be changed by us? I do not understand if you need help with this globular or you simply report new data?
Thank you, but any asteroid we can make ourselves. The most famous Potentially Hazardous Asteroids we have.toutatis wrote:I want to suggest an Add-on to Celestia that I wrote... this Add-on called "PHA (Potentially Hazardous Asteroids)"... the folder contains ssc and xyz-files... Currently it will displays 1200 potentially hazardous objects ... and it will more with each day! ... Parameters of the orbits for the epoch 2458200,5 (March 23, 2018, 00: 00TDB)... Works with Celestia Origin too...
Founder and head of the project "Celestia Origin"