Europa at 8k !

Pixel · Post #1by **Pixel** » 08.07.2002, 07:59

I am just experimenting. If you think that colors are not correct you are absolutelly right

:

and some more:
http://free.bol.bg/pixel/e1.jpg
http://free.bol.bg/pixel/e2.jpg
http://free.bol.bg/pixel/e3.jpg
http://free.bol.bg/pixel/e4.jpg
http://free.bol.bg/pixel/e5.jpg

Post #2by **t00fri** » 08.07.2002, 09:59

Pixel wrote:I am just experimenting. If you think that colors are not correct you are absolutelly right ;)
:

Hey this is phantastic! I thougtht, I am done with Europa;-)

OK, off we go again...

Bye Fridger

Pixel · Post #3by **Pixel** » 08.07.2002, 10:48

t00fri wrote:
Hey this is phantastic! I thougtht, I am done with Europa;-)

OK, off we go again...

Bye Fridger

Actually we will never finish it. More and more hires images are comming.
every experienced user can fetch really big maps of
Venus, Mars, Europa, Ganimede, Calisto, Moon. In fact they have even bigger resolution that BM Earth. What i am talking about:

Mars (0.3km/pixel) ~ ( 92000 x 46000)
Venus (0.1km/pixel) ~ ( 380000 x 190000) !!!!
Moon (0.1km/pixel) ~ ( 108000 x 54000 )
Europa (0.6km/pixel) ~ (18000 x 9000)
Calisto (1km/pixel) ~ (16000 x 8000)
Ganimede (1km/pixel) ~ (16000 x 8000)

These are the the most recent image updates and are not photoshoped at all, so they need much artwork before became usefull for Celestia. Main problems to be addressed are:
1) they are gray-scale images
2) some image segments are missing and some have lower resolution (from previous missions)
Nevertheles i think a good complete set of 8k dds Celestia textures can be prepared by ethusiasts.
Here they are:
http://pdsmaps.wr.usgs.gov/maps.html

Post #4by **t00fri** » 08.07.2002, 11:57

Pixel wrote:
t00fri wrote:
Hey this is phantastic! I thougtht, I am done with Europa;-)

OK, off we go again...

Bye Fridger

Actually we will never finish it. More and more hires images are comming.
every experienced user can fetch really big maps of
Venus, Mars, Europa, Ganimede, Calisto, Moon. In fact they have even bigger resolution that BM Earth. What i am talking about:

Mars (0.3km/pixel) ~ ( 92000 x 46000)
Venus (0.1km/pixel) ~ ( 380000 x 190000) !!!!
Moon (0.1km/pixel) ~ ( 108000 x 54000 )
Europa (0.6km/pixel) ~ (18000 x 9000)
Calisto (1km/pixel) ~ (16000 x 8000)
Ganimede (1km/pixel) ~ (16000 x 8000)

These are the the most recent image updates and are not photoshoped at all, so they need much artwork before became usefull for Celestia. Main problems to be addressed are:
1) they are gray-scale images
2) some image segments are missing and some have lower resolution (from previous missions)
Nevertheles i think a good complete set of 8k dds Celestia textures can be prepared by ethusiasts.
Here they are:
http://pdsmaps.wr.usgs.gov/maps.html

Well this is very interesting and I think we have opened up this new "Texture Foundry" department exactly at the right time;-)

Over the weekend, I have been quite busy coding and testing my new Texture Download interface. It is working quite nicely on my (private) Apache server. But Chris has still to activate the Perl-CGI-scripting when he is back...in order that I can make the stuff public.

Bye Fridger

Pixel · Post #5by **Pixel** » 10.07.2002, 14:50

Do you like these Mars colors

. DDS format severe damaged them, but they still look nice:

http://free.bol.bg/pixel/m4.jpg
http://free.bol.bg/pixel/m1.jpg
http://free.bol.bg/pixel/m3.jpg
http://free.bol.bg/pixel/m2.jpg

for comparision, here are my 16K Mars shots. What is preferable - colors or resolution?

http://free.bol.bg/pixel/m16_4.jpg
http://free.bol.bg/pixel/m16_3.jpg
http://free.bol.bg/pixel/m16_2.jpg
http://free.bol.bg/pixel/m16_1.jpg

Post #6by **t00fri** » 10.07.2002, 16:10

Pixel wrote:Do you like these Mars colors 8) . DDS format severe damaged them, but they still look nice:

http://free.bol.bg/pixel/m4.jpg
http://free.bol.bg/pixel/m1.jpg
http://free.bol.bg/pixel/m3.jpg
http://free.bol.bg/pixel/m2.jpg

for comparision, here are my 16K Mars shots. What is preferable - colors or resolution?

http://free.bol.bg/pixel/m16_4.jpg
http://free.bol.bg/pixel/m16_3.jpg
http://free.bol.bg/pixel/m16_2.jpg
http://free.bol.bg/pixel/m16_1.jpg

These images are /all/ simply amazing!

Of course 16k resolution is hard to beat, but according to my studies of visual "true color" Mars photos, the RedMars original color appears definitely too yellow. My mars textures have correspondingly a lighter, reddish appearance.

While the surface details on the 8k images are great, to my feeling the brownish color is somewhat too "dense", i.e. too saturated.
This may well be due to the dds conversion...

By the way, I played yesterday quite a bit with the 8k Europa textures, without too much satisfaction yet...

Bye Fridger

Rassilon · Post #7by **Rassilon** » 10.07.2002, 16:55

I guess it is time for me to learn DXT

... Hopefully I can get the smegging plugin to operate :roll:

btw Pixel have you chanced upon a 8k jupiter tex yet?

Post #8by **t00fri** » 10.07.2002, 18:28

Hey Pixel:

I finally had a chance downloading your huge earth16k.dds with my fast ethernet. I had never dared to mess with 16k because my GeForce 2 GTS only has 32MB RAM.

It is simply gorgeous! No comparison to 8k as you wrote a long time ago;-). I did not believe my eyes, but the operation is entirely smooth, I get constantly 20 fps! So I have to start working on these 16k textures;-)

On a closer look there are a number of things I want to change. Notably the BM "cartoon colors" => desaturation is urgently needed. Otherwise my beautiful clouds will "complain";-)

Did you say that the new nvdxt crashes on those 16k files?

So a nice combination is to put a good earth4k.dds /with specular/ effects as medres and for the closeups one then switches to 16k in hires. In zoom mode the spec effects are not so important anyway.

Bye Fridger

Pixel · Post #9by **Pixel** » 11.07.2002, 10:36

Rassilon wrote:I guess it is time for me to learn DXT ... Hopefully I can get the smegging plugin to operate

btw Pixel have you chanced upon a 8k jupiter tex yet?

Jupiter athmosphere is changing fast, so a Real and complete
hires map of Jupiter is verry doubtfull to appear. A probe must scan very fast

.
But hires artifical created maps of Jupiter are welcome.
As long they look like this, i can live with unreality

:
http://antwrp.gsfc.nasa.gov/apod/image/0207/iojup_cassini_big.jpg

t00fri wrote:It is simply gorgeous! No comparison to 8k as you wrote a long time ago;-). I did not believe my eyes, but the operation is entirely smooth, I get constantly 20 fps! So I have to start working on these 16k textures;-)

Yes, the video memory is not limitation here, at least for Geforces - it seems AGP texturing has acceptable speed in our cases. This make me wonder if 32k Earth is possible right now? In this case the data transfer via AGP will be four times bigger - lets say 4fps (when you rotate earth at close distances). Well - that is crazy, even it is possible, i don't think this is the right way to hunt for hires. Even having enough video and system ram, the initial texture loading time will be allways unacceptable. The enormous hires and/or terrain generators(elevation maps) are well beyond the purpose of Celestia i thing? BTW did i say that i have the 1km/pixel Earth elevation map with precision of 16 bit per pixel = 1m denivelation accuracy.

Buzz · Post #10by **Buzz** » 11.07.2002, 12:34

Pixel wrote:BTW did i say that i have the 1km/pixel Earth elevation map with precision of 16 bit per pixel = 1m denivelation accuracy.

Wow! I tried to go to your FTP server but unsuccesfully... Did it change? Could you give the link again please?

Thanks,
Buzz

Pixel · Post #11by **Pixel** » 12.07.2002, 07:37

Buzz wrote:Wow! I tried to go to your FTP server but unsuccesfully... Did it change? Could you give the link again please?

Thanks,
Buzz

Thanks to Smirnov, It is still ok, i think:
ftp://ftp.dasmirnov.net/astronomy/celestia/textures/pixel/

Rassilon · Post #12by **Rassilon** » 12.07.2002, 07:42

To have one as clear and vivid as that captured image would be like a chance glimpse into the eye of a god...

There has to be one about somewhere...maybe I will find and bring here

Thilo · Post #13by **Thilo** » 12.07.2002, 09:54

Oh, you can really make the textures as big as you want ... i have my Geforce4 with 128 meg ram to toy around with :D

BTW: the bump mapping on mars looks nice, but i have the feeling that there's a bit too much relief ... i do not believe there are mountains on mars that reach up 200 km ;-)

dreamer · Post #14by **dreamer** » 14.07.2002, 12:10

Olympus Mons: some 27km

Smirnov · Post #15by **Smirnov** » 15.07.2002, 13:14

Hey guys...

Pixel I presume these new .jpgs that appeared last week in my upload folder are from you? If so I'll move them over to the pixel/ dir.

Venus8k.jpg and Europa8k.jpg if not let me know and I'll dump them where they should be!

If you guys can log on as user: 'Celestia' password 'upload' you'll have write access to the astronomy/celestia/ dir rather then just dumping stuff in with all the porn that gets uploaded to the main upload/ dir.

If you guys are having problems browsing directories make sure your client is using passive mode, that normally sorts that out. If you're using IE (which I don't recommend for FTP) theres a flag in Tools/Internet Options/Advanced/Use Passive FTP check that and it should improve. For CuteFTP, the option is under FTP/Settings/Options/Firewall/PASV mode.

Of course it's only over DSL so don't expect 99.9% uptime. 95% is what I aim for.

Pixel · Post #16by **Pixel** » 15.07.2002, 15:23

Smirnov wrote:Hey guys...

Pixel I presume these new .jpgs that appeared last week in my upload folder are from you? If so I'll move them over to the pixel/ dir.

Venus8k.jpg and Europa8k.jpg if not let me know and I'll dump them where they should be!

Yes - these are mine. But these are not for imediate use in Celestia, but for interested texturomaniacs

. Someone could improve/retouche them and eventually compess in dds format.

boertje · Post #17by **boertje** » 15.07.2002, 18:48

:(

Strange but I can't seem to open venus8k and europa8k. They just stay black. I did put them into the medres folder and changed the solarsys.ssc
Funny because I don't have problems watching the 16k-earthmaps and stuff. Maybe the *.jpg format makes problems at this size? If the what should I change to watch them?
I have a gf3/64mb and 512MB ram so that shouldn't be the problem.

Mos · Post #18by **Mos** » 24.07.2002, 17:45

Uh, is there an alternate FTP? No offense, Smirnov, but downloading from you is painfully slow. I spent 3 hours downloading earth_16k_dds.zip, only to have it give me a CRC error upon unzipping it. A friend of mine tried to get it with his ADSL, and got a wonderful 3/k a second.

Er, so anyway, alternate FTP anyone?

Smirnov · Post #19by **Smirnov** » 25.07.2002, 12:24

Why don't you get your mate to host an FTP server on his ADSL, and then let him have 27000 connection requests made every 12 hours for a week and shifting 2GB of files per day, and see how fast his server goes then? May be then you'll understand why things are going so slow at my end. If the server is busy the server is busy, and it's been completely full for the last week, due to some SoundBlaster driver releases. Things have quietened down because we've got the files on some mirrors, which are a bit more high-tech then my little box in my bedroom cupboard.

At the moment there is 1 user connected downloading at 16KB/s, what I normally have the FTP server capped at, unless things are busy.

I do have to run other services from my connection too, and I still have to be able to use the connection for normal internet browsing etc.

If people want to chip in so I can afford a 10Mb/s leased line you're more then welcome. :wink:

I've raised the issue of having several mirrors over the last few months, but nobody has come forward who has lots of bandwidth. And the DSL users mostly don't want their connections hammered by large file transfers.