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Latest cvs atmospheres for meshes
Posted: 29.08.2006, 14:04
by cartrite
I took some screenshots of one of my models with the new atmosphere code that Chris commited to cvs.
The SSC settings are:
Code: Select all
Atmosphere {
Height 30
Lower [ 0.8 0.6 0.6 ]
Upper [ 0.7 0.3 0.3 ]
Sky [ 0.83 0.75 0.65 ]
Sunset [ 0.7 0.7 0.8 ]
#Mie 0.001
#MieAsymmetry -0.15
#Rayleigh [ 0.006 0.0025 0.002 ]
Absorption [ 0.0002 0.0004 0.0008 ]
#MieScaleHeight 8
#CloudHeight 7
#CloudSpeed 0
#CloudMap "MarsClouds.png"
Mie 0.00025
MieAsymmetry 0.15
Rayleigh [ 0.00175 0.000875 0.00075 ]
#Absorption [ 0 0 0 ]
MieScaleHeight 14
CloudHeight 7
CloudSpeed 0
CloudMap "MarsClouds.png"
# Slightly bluish sunset, as seen in true color pictures
# from Pathfinder
}
I think this new code on models is incredible although my settings can still be tweaked.
Thanks Chris
cartrite
Posted: 29.08.2006, 14:16
by bh
Incredible!
Posted: 29.08.2006, 14:58
by ANDREA
Cartrtite, could you please show same images with the Sun rising from horizont, in order to see the atmosphere transparency effects?
BTW, your results are absolutely incredible, way to go!
Bye
Andrea
Posted: 29.08.2006, 16:48
by cartrite
Hi Andrea,
Those images are looking towards the south which would not show the sun on the horizon.
Here are a couple more with the sun in the picture. It's a little small but you should be able to see.
swithching to thumbs
The atmosphere adds an extra dimension thats beyond words. This all Chris's code that brings this model to life.
cartrite
Posted: 29.08.2006, 16:52
by Cham
Those pictures are really extraordinary. Pure beauty !
What about FPS ? Is it smooth in Celestia ?
Posted: 29.08.2006, 17:05
by cartrite
Cham wrote:
What about FPS ? Is it smooth in Celestia ?
I didn't really check the frame rate but I could tell it was very sloooooow.
This model with all the textures loaded gets about 5fps in rendering modes other than OGL2.
It is basicly the same model I uploaded a while back to the MotherLode called 3dMars but with added texture and normalmap support for the Olympus Mons area and the VallesMarineraris area. With OGL2, frame rates are a crawl but the images are worth it. I use bookmarks to get around.
Edit: I think I had a thread in the addons forumn that explained a way to convert the model
on the Motherlode to have planet wide normalmap support. The one in the above images has enhanced support because I uv'd the high resoloution meshes and split them up into 4 sections each for increased texture size.
cartrite
Posted: 01.09.2006, 05:56
by cartrite
I came up with these shots after playing with the atmosphere settings.
Code: Select all
Atmosphere {
Height 30
Lower [ 0.8 0.6 0.6 ]
Upper [ 0.7 0.3 0.3 ]
Sky [ 0.83 0.75 0.65 ]
Sunset [ 0.7 0.7 0.8 ]
Rayleigh [ 0.000175 0.00000075 0.00000075 ]
Mie 0.00065
MieAsymmetry -0.21
Absorption [ 0.00002 0.00002 0 ]
MieScaleHeight 30
CloudHeight 10
CloudSpeed 0
CloudMap "MarsClouds.png"
# Slightly bluish sunset, as seen in true color pictures
# from Pathfinder
}
Sunrise
This shot shows Mercury and Venus which almost looks brighter than the Sun.
Midday
Sky oppisite from the sunset.
And this one shows the problem with the settings. This color is there throughout the night.
High orbit
Except for the color on the horizon at night, I think they come pretty close to the image from pathfinder.
cartrite
Posted: 02.09.2006, 04:16
by cartrite
With all the commotion today I wonder if my above post ever got noticed.
Posted: 02.09.2006, 04:21
by Malenfant
That third picture looks very cool, any chance of seeing a wider angle view of that, to see how the blue fades to pink around the sun?
Though I'm wondering if you'e supposed to still be able to see the glowy haze on the horizon even at midday... (let along night, as you point out)
Posted: 02.09.2006, 05:12
by cartrite
If I remember correctlly, I think the 2nd and the 3rd shots are the same settings, with the 3rd being a dereased field of veiw. With the current code, I don't know if it's posible to show a blue color bend around the sun.
The increased value "MieAsymmetry -0.21" probally accounts for the glow.
When it is set higher the "glow" really gets bright. The reason I set it higher is because it also brightens the sun or seems to. The colors basicly stay the same when it's lowered but the sun is also dimmer. Edit: Actually the very low Rayleigh settings probally brightened the sun.
I think the settings I posted are a good base for further refinement.
cartrite
