Project "Celestia Origin", release dated December 30, 2017

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Gurren Lagann
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Post #161by Gurren Lagann » 21.03.2018, 22:40

Don't worry, John still doesn't understand some things about Celestia (like how to show planets beyond a light-year)

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John Van Vliet
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Post #162by John Van Vliet » 22.03.2018, 03:33

Gurren Lagann

Go fuck off !!!

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Art Blos M
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Post #163by Art Blos » 22.03.2018, 06:17

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.
I completely agree. Problems can occur only when using a format DDS. In other formats allowed different image resolution.
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Art Blos M
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Post #164by Art Blos » 22.03.2018, 10:34

Added 671 real stars of the Draco Dwarf Galaxy.
Draco Dwarf stars.png
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Art Blos M
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Post #165by Art Blos » 22.03.2018, 10:37

Added 142 real stars of the galaxy M 110.
M 110 stars.png
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Art Blos M
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Post #166by Art Blos » 22.03.2018, 10:38

Added 253 real stars of the galaxy M 32.
M 32 stars.png
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selden
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Post #167by selden » 22.03.2018, 13:42

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

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Cham M
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Post #168by Cham » 22.03.2018, 14:35

John Van Vliet wrote:Gurren Lagann

Go fuck off !!!

LOL ! :toothless:
"Well! I've often seen a cat without a grin", thought Alice; "but a grin without a cat! It's the most curious thing I ever saw in all my life!"

Gurren Lagann
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Post #169by Gurren Lagann » 22.03.2018, 16:57

John Van Viet wrote:Gurren Lagann

Go fuck off !!!

DONT MAKE A SAIYAN ANGRY :evil: goes Super Saiyan Blue and drills John

Cham wrote:LOL ! :toothless:

not funny :evil:

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CM1215 M
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Post #170by CM1215 » 22.03.2018, 19:56

How about we stay on the topic of Celestia and stop hating on each other, shall we? This is a Celestia Forum after all...
CM1215: Celestial master in learning.

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Art Blos M
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Post #171by Art Blos » 24.03.2018, 20:19

The most global processing of all the textures of Jupiter. Surfaces of 1994, 2008, 2016 and 2017 years have been added.
Jupiter for all time.png
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Gurren Lagann
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Post #172by Gurren Lagann » 24.03.2018, 20:30

Incredible! How long did you took?

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Askaniy M
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Post #173by Askaniy » 24.03.2018, 20:47

Gurren Lagann, I started doing them two months ago.
They are all close to real colors and contrast and they have poles, taked by Juno.
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Post #174by Gurren Lagann » 24.03.2018, 21:02

Oh my, 2 months?! I would had taken 5-7 years...

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FarGetaNik M
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Post #175by FarGetaNik » 25.03.2018, 11:44

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.

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Askaniy M
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Post #176by Askaniy » 25.03.2018, 14:42

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.
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.
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Art Blos M
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Post #177by Art Blos » 25.03.2018, 18:21

Added 2K-night texture of Jupiter with aurora. It will be disabled by default.
Aurora on Jupiter.png
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LukeCEL
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Post #178by LukeCEL » 25.03.2018, 20:32

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):

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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Art Blos M
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Post #179by Art Blos » 26.03.2018, 07:59

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):
I do not understand your sentence.:toothless: These is parameters are ready? Or you asking me to update them?
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Post #180by LukeCEL » 27.03.2018, 00:41

Art Blos wrote:I do not understand your sentence. These is parameters are ready? Or you asking me to update them?

I am asking you to update them, yes.


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