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Old 4th Aug 2012, 07:41 AM   #1
designfriemel
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Default LF 32k+ earth normal and specular maps

Hi folks,

Basically looking for those here, but un-tiled:


http://www.celestiamotherlode.net/catalog/earthbumpspec.php


They were suppose to be on the Nasa website some years ago - however there is no trace of them anywhere now.
I've contacted one of the gents at celestia motherlode, but he's only got them tiled as well.

One other chance might be an utility that puts all tiles together and lets you save the image - a converter that not only converts the dds files but puts the all the tiles together automatically.

help is much appreciated!

rg
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Old 4th Aug 2012, 08:12 AM   #2
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Originally Posted by designfriemel View Post
Hi folks,

Basically looking for those here, but un-tiled:


http://www.celestiamotherlode.net/catalog/earthbumpspec.php


They were suppose to be on the Nasa website some years ago - however there is no trace of them anywhere now.
I've contacted one of the gents at celestia motherlode, but he's only got them tiled as well.

One other chance might be an utility that puts all tiles together and lets you save the image - a converter that not only converts the dds files but puts the all the tiles together automatically.

help is much appreciated!

rg
I used a normal map on my Earth model, I made it by downloading the srtm_ramp2.world dataset and processing it using nmtools. It is a little in depth but there is a good tutorial available.

Tutorial - http://www.celestialmatters.org/?q=node/10#generate

Tools - http://forum.celestialmatters.org/viewtopic.php?t=70

You can also use the f-textools in the same way to process the colour map datasets.

As for the datasets themselves, look here... http://visibleearth.nasa.gov/view.php?id=73934 the '
srtm_ramp2.world.86400x43200.bin.gz' file can be used to make bump maps (and therefore normal maps up to 86400x43200 pixels.

And for the colour maps look here - http://visibleearth.nasa.gov/view.php?id=73570

With a bit of patience it's not to hard to track down some really nice land/sea mask images at the same resolution. The real problem is finding a decent cloud map at hi resolutions, the best one I could find was only 43200x21600 pixels and I have no idea where I got it.
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Old 4th Aug 2012, 08:33 AM   #3
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thx again tony for your help.

Sigh, lots of work to make maps that are already there - well i still hope i can find someone providing the original un-tiled maps that were used for celestia - they must still be somewhere.

funny you point me at the BM page because that is where those cloud textures came from:

http://visibleearth.nasa.gov/view.php?id=57747

they need so much work though - I think I'll buy a premium account for a month and get Phoenix' earth scene and try to rebuild it in C4D - it looks like he has got some decent maps.

Anyway, I still try to get those normal and specular maps in 32k from someone...
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Old 4th Aug 2012, 08:51 AM   #4
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I think I'm clearly unable to cope with this tutorial - many of the links provided are dead, too.
As far as I understood it, it's goal is a tiled version... which is exactly not what I require.
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Old 4th Aug 2012, 08:58 AM   #5
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The tutorial is a tad daunting but the technique is actually fairly straightforward, don't worry too much about links in the tutorial just download the datasets and the tools from the links I gave. the tutorial explains how to install the tools, extract the datasets and convert them to .png image files as well as how to reduce them to whatever size you want.

The tools are on a command line interface and can be run on low spec computers.

I don't know if you'll find un-stitched images easily without paying for them.
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Old 4th Aug 2012, 09:11 AM   #6
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The tutorial is a tad daunting but the technique is actually fairly straightforward, don't worry too much about links in the tutorial just download the datasets and the tools from the links I gave. the tutorial explains how to install the tools, extract the datasets and convert them to .png image files as well as how to reduce them to whatever size you want.

The tools are on a command line interface and can be run on low spec computers.

I don't know if you'll find un-stitched images easily without paying for them.
Thx for trying to reassure me. I'll have another look.
Paying? Ok, that puzzles me, because those maps are provided for free at celestia, and as far as I understood it were provided free from Nasa in the first place - so how can someone charge money for an un-tiled version 0o ?
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Old 4th Aug 2012, 09:12 AM   #7
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deleted - weird double post
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Old 4th Aug 2012, 09:23 AM   #8
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Thx for trying to reassure me. I'll have another look.
Paying? Ok, that puzzles me, because those maps are provided for free at celastia, and as far as I understood it were provided free from Nasa in the first place - so how can someone charge money for an un-tiled version 0o ?
As you've found out already tiled versions are easy to find as that's the format commonly used by Celestia, in order to find un-tiled ones at resolutions like 32K you MAY have to buy a pre-made model such as Phoenix's one as I don't think there are free one's available at those kinds of resolutions (I may well be wrong).

Of course if you have a PC with enough memory and you have the patience you could stitch the tiled ones together in Photoshop or similar but I honestly think the method I mentioned may be easier.
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