Project D3D11Client Development

[asmi]

Cras, please give it another try. At least Sun should show up now

 

[Zachstar]

Talk about rapid testing! Multiple build tests in less than 12 hours?! Nice! :thumbup:

BTW asmi. I don't know if you have a tester with older AMD hardware yet for DX10 testing but as I manged to derail your topic to hell and back I should apologize and offer my 4770 for testing if you so need it at a later point in the future. DX 10.1, 512meg

I will be upgrading to an Nvidia 6xx series card in the future. Yet for now if my 4770 can be of any use.

 

[dumbo2007]

You guys are getting awesome images. I only get this :



Scenario : Delta Glider on Brighton Beach.
Nvidia 630M, i7 dual core

 

[Frogisis]

This is looking really fine. I'm still getting that strange increase in brightness, though - It's not wavering anymore, but if sky fills enough of the screen, the HDR brightness increases to ridiculous levels, such that the sunlit sides of planets and ships become a uniform flat white within a few seconds.

 

[Cras]

It is still not there yet. I see what Frogisis reported. The Earth can blow out my screen quite easily.

The atmosphere is a bit better. That green hue is gone, but it still doesnt look right, and there is not hints of purple seen.

the atmosphere: https://dl.dropbox.com/u/68333863/TerrainTest/028.png
https://dl.dropbox.com/u/68333863/TerrainTest/029.png
https://dl.dropbox.com/u/68333863/TerrainTest/030.png

and then when the Earth glows, it glows hot,
https://dl.dropbox.com/u/68333863/TerrainTest/026.png
https://dl.dropbox.com/u/68333863/TerrainTest/027.png
https://dl.dropbox.com/u/68333863/TerrainTest/031.png


last one you can see the Sun in the upper right hand corner there.

here are two pics I am sort of comparing these with:
https://dl.dropbox.com/u/68333863/EarthFromSpace_2560x1024.jpg
this one for the atmospheric haze layer, for its thickness and its colour.

and then here for the brightness.
https://dl.dropbox.com/u/68333863/mid-Sunrise_To_Sunset_Aboard_The_ISS_OGG.jpg

I would say there are some pics that look close to this last one in terms of the planet shine "glow", a good contrast from the reflected light from the planet, and the dark sky above. But in some of the pics, the HDR is a bit unshackled and is allowed to glow the earth in excess.

 

[Frogisis]

Interestingly enough I always thought something close to that level of brightness would be pretty cool when you were around the area of Mercury's orbit or an even closer asteroid, and then became a pleasant glow around Earth, and as you got out into the outer solar system the HDR would switch signs and become kind of an abyssal gloom out in the Kuiper belt.

 

[Zachstar]

Martin in another post explained why changing light levels based on AU is bad. Mainly due to displays and how the eye perceives light.

 

[asmi]

Cras, I desperately need a second opinion Please check it out once again. Does this look good?

 

[boyan3001]

Edge of atmosphere is quite sharp. Raytraced color looks ok.

 

[Cras]

I am gonna look around, maybe dive into the NASA photograhy archives and see if I can find some comparable pictures and compare. there are a lot of things that are subtle, but need to be right It is sort of like you wont notice them until they are wrong, then they really stand out. Such as the heigh of the haze, how it fades on the dark side, things like that. The dark side of the earth should never show a horizon I dont think. It should transition to shadow and thus the edge be soft.

 

[N_Molson]

Notice how the Sun appears "under" the atmosphere.

Sunset from Earth orbit, seen from the International Space Station (ISS). The glow of the setting Sun is lighting up the atmosphere (blue) on the gently curving horizon that separates the Earth (bottom) from space (top). The atmosphere is around 100 kilometres thick, a relatively thin layer of air compared to the size of the Earth itself. Photographed on 23 November 2009 during mission STS-129 by the Space Shuttle Atlantis to the ISS.

 

[DaveS]

Just a quick question: Would it be possible to disable the bloom effect on vessels? That is something that has bugged me for a while when it comes to the D3D11Client.

 

[asmi]

Just a quick question: Would it be possible to disable the bloom effect on vessels? That is something that has bugged me for a while when it comes to the D3D11Client.

No, it isn't since bloom is post-processing effect. Besides, if the vessel is bright in current light conditions - it should glow.

---------- Post added at 12:31 ---------- Previous post was at 12:24 ----------

I am gonna look around, maybe dive into the NASA photograhy archives and see if I can find some comparable pictures and compare. there are a lot of things that are subtle, but need to be right It is sort of like you wont notice them until they are wrong, then they really stand out. Such as the heigh of the haze, how it fades on the dark side, things like that. The dark side of the earth should never show a horizon I dont think. It should transition to shadow and thus the edge be soft.

Yes I know, but on the other hand - this is not a raytraced image, so some things will inevitably be missing, or slightly wrong. I want it to be as close to reality as possible, but I also understand that there are technological limits to what can we do to achieve that - and that will keep being the case until video card's performance envelope reaches a point where it would be possible to do a real-time raytracing...

Also please check how HDR in general feels. I've made some tunes in that area as well and would like to get some feedback on that item too.

 

[Poscik]

Asmi, take a look on it, under atmosphere section:
http://evasion.inrialpes.fr/~Eric.Bruneton/

IMHO the best available publication. Also you can find other amazing things there

 

[asmi]

Asmi, take a look on it, under atmosphere section:
http://evasion.inrialpes.fr/~Eric.Bruneton/

IMHO the best available publication. Also you can find other amazing things there

That's what we currently use for atmosphere model.

 

[asmi]

Some more tunings:

 

[Zachstar]

I personally think that looks absolutely amazing.

 

[asmi]

I personally think that looks absolutely amazing.

OK, let's wait for a word from Cras, so I can put a checkmark for that item

 

[Zachstar]

OK, let's wait for a word from Cras, so I can put a checkmark for that item

Then on to the standardized terrain engine?

You know. So I can finally wipe the drool off my keyboard? :tiphat:

 

[asmi]

Then on to the standardized terrain engine?

You know. So I can finally wipe the drool off my keyboard? :tiphat:

Nope - I've got other things that wait to be fixed before doing that...