Earth project

Started by Oshyan, March 26, 2007, 12:31:05 am

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Oshyan

The water is already masked in this case, although the mask resolution is lower than for the land and may also have *slightly* different contintent shapes as a result. I may have to redo the specular mask.

- Oshyan

Arandil

Orbiter has 32k x 16k textures and specular maps (and nighttime city maps) for Earth.  The images are saved in DDS format apparently, but named as .tex.  I think you might be able to extract them somehow, but off the top of my head I can't recall...

I know that Martin (the program author) jazzed up the night light map a bit with some noise because he thought the one he got from NASA/Blue Marble was too granular.

Oshyan

Interesting to hear that Arandil. I'll take a look...

- Oshyan

king_tiger_666

March 27, 2007, 01:19:57 am #18 Last Edit: March 27, 2007, 01:29:09 am by king_tiger_666
maybe something like this too?
http://celestiamotherlode.net/catalog/earth.php

though to get all 8 levels of one set is over 2gb :( vt/png format though from my experience with using some of these textured they looked pretty good...

oshyan maybe google earth is a good source they have this for mars 3gb tiff at 92,000 x 46,000 pixels
http://bbs.keyhole.com/ubb/showflat.php/Cat/0/Number/753304/an/0/page/0

now we just need to find a source for earth and see if you can download the raw tiff from somewhere hmm... that's really high quality 4.2gigapixel?
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Oshyan

Yes, I'm familiar with many of these sources actually. The problem is TG2 can't load them, at least not on my machine. It choked on a 21600x10800 .jpg, so I'm not going to be trying anything above that. Perhaps if TG2 gains support for dynamic reading and mip-mapping of tiled data sets this would be practical, but for now without a 64 bit version I think not, unfortunately. The point of the project is to do the best we can *at present*, and a big part of that is finding the highest resolution that will render consistently.

- Oshyan

3DGuy

I guess I used the same maps in my evening in europe picture. I also had to scale down to the same res you mentioned because TG2 would crash.

old_blaggard

It's interesting because my project uses two 21600*10800 images on a rather pathetic laptop without a problem.
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Oshyan

Yeah, except you're on a Mac. Could be that the Mac version handles this stuff better. I'd hate that to be the case, but wouldn't be surprised. ;)

- Oshyan

old_blaggard

Heheh... we win again! :D
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3DGuy

My 3DS Max doesn't have a problem with those big maps, so is it Windows, or is it TG2?
For those interested, here's the image I made in 3DS.

btw Oshyan, do you have a proper bumpmap for the earth, because I can provide one if you need it.

Oshyan

It would probably be a TG2 problem on Windows not Windows itself. I can load such high resolution maps in other apps as well.

I do have a bump map for Earth but would welcome other sources as well. I honestly wouldn't be bothering with this project since I know others have already done much of this, except - if I may say so - I found my result to be a bit better than any I'd seen previously. ;)

- Oshyan

RealUser

Hey, pretty nice image of Mother Earth and Mr.Moon!

Quote from: 3DGuy on March 27, 2007, 02:58:29 pm
My 3DS Max doesn't have a problem with those big maps, so is it Windows, or is it TG2?
For those interested, here's the image I made in 3DS.

btw Oshyan, do you have a proper bumpmap for the earth, because I can provide one if you need it.
Markus / RealUser
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RealUser

Hey Oshyan, did you work on the project lately?
Markus / RealUser
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visit my Renderosity Gallery at
http://www.renderosity.com/mod/gallery/browse.php?username=RealUser
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Mahnmut

September 14, 2007, 09:17:04 am #28 Last Edit: September 14, 2007, 10:16:37 am by Mahnmut
concerning the water surface:
I don´t know if it´s an unnecessarily complicated method, but I used a sphere of the planets average diameter "inside" the planet for my green mars. -You know, the one with the terminator problem ;)
That way you can increase or decrease waterlevel by adjusting the waterspheres diameter.
Maybe thats interesting for someone who wants to see what earth would look like after the polar caps melted. ;)
It works quite nicely with the 16k bumpmap of Mars from the celestia motherlode.
Regards,
Jan

Oshyan

Quote from: RealUser on September 14, 2007, 06:49:10 am
Hey Oshyan, did you work on the project lately?

It seemed like TG2 on Windows was more fundamentally limited in regards to use of high resolution textures than it should be, so I set it aside for a while. I'll definitely come back to it soon though, especially as the new renderer optimizations come into play. :)

- Oshyan