Planetside Software Forums

General => File Sharing => Planets => Topic started by: bigben on September 02, 2012, 01:58:27 am

Title: Lunar digital elevation bump map.
Post by: bigben on September 02, 2012, 01:58:27 am
I still have some work to do fixing/moving my site, but the end plan is to expose the downloads via old school directory listings.
Here' then, is my first new terrain for a while... or more accurately a bump map as the files are only 8bit TIFFs.  There are 3 resolutions at 20, 50 and 100 pixels per degree.

NB. Updated URL as part of my site reworking.
http://files.bigben.id.au/terragen/terrains/moon/ (http://files.bigben.id.au/terragen/terrains/moon/)
For more information, read the readme.txt file.

Full res test render: http://www.flickr.com/photos/ben-kreunen/7911243698/sizes/o/ (http://www.flickr.com/photos/ben-kreunen/7911243698/sizes/o/)
This is around the limit for this set as you can start to see some noise in the smoother areas (either from the data or because they're only 8bit)  Texture is only 4K.

If you use them just drop a note or an image here so that I know it wasn't a waste of time putting them up.

Enjoy.

Ben  :)
Title: Re: Lunar digital elevation bump map.
Post by: Dune on September 02, 2012, 03:10:16 am
No waste at all, Ben. Downloading now. Thanks a lot!
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 02, 2012, 04:15:50 am
The smallest image would be useful for renders from earth. The shadows from the terrain make it much more realistic than just the flat texture.  The largest one is handled quite easily by TG and would make for some very nice fly overs.

There are some high res textures of the moon but they're all tile sets.  I'm going to join one up to go with these files but even with a 4k texture it looks pretty amazing.

Early stages of re-texturing a model below. Passing over the Apollo 11 landing site.
Title: Re: Lunar digital elevation bump map.
Post by: Kadri on September 03, 2012, 07:53:34 pm

Thanks for the textures Ben!
Title: Re: Lunar digital elevation bump map.
Post by: Oshyan on September 06, 2012, 03:58:35 am
Nice to have this data in an easy usable format, thanks Ben! Any way you can get it into EXR to avoid the 8 bit data limitations?

- Oshyan
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 06, 2012, 05:32:02 pm
Should be able too. I'll investigate
Title: Re: Lunar digital elevation bump map.
Post by: 4nt on September 07, 2012, 09:07:20 am
Hi @ all,
are there manuals for the right using of these files?
My results are confused.
Thx for every support!

cheers
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 07, 2012, 05:55:52 pm
Added 32bit texture of the highest resolution (sample below, NB. This is still about 1/7 the resolution of the raw data)

Quote from: 4nt on September 07, 2012, 09:07:20 am
are there manuals for the right using of these files?

...and clip files for both 8bit and 32bit textures (displacement applied differently between the 2) 

I haven't zipped the 8bit textures as they are already LZW compressed so the saving would be small.

Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 07, 2012, 07:20:31 pm
OK one last present.  Stitched a 16k texture from Celestia Motherlode...

Another quick test render.  2min 10sec, detail 1 everything else default.  Just over 2Gb RAM/2Gb VM while rendering.
http://www.flickr.com/photos/ben-kreunen/7952299266/in/photostream/lightbox/
Title: Re: Lunar digital elevation bump map.
Post by: 4nt on September 09, 2012, 06:33:03 am
Hi bigben,
thx for your support and your *.tgd file.
Compared with your file I see no difference with my settings, but my final is completely poor.

I have uploaded 2 samples.

(http://www.abload.de/thumb/moon1n2byj.jpg) (http://www.abload.de/image.php?img=moon1n2byj.jpg)

(http://www.abload.de/thumb/moon2smye7.jpg) (http://www.abload.de/image.php?img=moon2smye7.jpg)

At first I create a new planet (moon), it get new sizes.
Then I load the *.tif into the chan file.
I `ve tried two different surface shader, but no crator is created in the render.
Where is the mistake.  :(
Thx for every advice.

cheers
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 09, 2012, 08:24:36 pm
I checked the TGD file I uploaded and realised there were 2 mistakes which would be causing you some confusion.
1. I forgot to change the size of the background. Using realistic numbers for the moon size and distance put it behind the background.
2. I forgot to set the camera position when I finialised the view, so the camera wasn't pointing at anything.

Updated the file in the post above and also stripped out the paths in the image names in the TGD, so it should load without error if the TGD and images are in the same directory. It uses the largest texture and the 32bit elevation model.

The shaders you need to be looking at are in the internal network of the second planet. Right click on the second planet's node and select Internal Network.
[attach=1]
Title: Re: Lunar digital elevation bump map.
Post by: TheBadger on September 10, 2012, 07:18:07 pm
Thanks Ben. Been following this too. Not a waist at all!
Title: Re: Lunar digital elevation bump map.
Post by: 4nt on September 11, 2012, 09:21:48 am
I got not this result, but I `ll train this technique.
Thank you very much!

cheers
Title: Re: Lunar digital elevation bump map.
Post by: mcmiller on September 11, 2012, 11:10:19 pm
Thank you for this! I've been trying to duplicate the moon's surface the hard way for a long time.... a single crater at a time!
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 12, 2012, 12:54:35 am
Here's a quick and dirty demo.
http://bigben.id.au/demo/add-moon/ (http://bigben.id.au/demo/add-moon/)

Quote from: 4nt on September 11, 2012, 09:21:48 am
I got not this result, but I `ll train this technique.
Thank you very much!

cheers
Title: Re: Lunar digital elevation bump map.
Post by: 4nt on September 12, 2012, 03:44:11 am
Thanks a lot, bigben, it really helps  :-*

cheers
Title: Re: Lunar digital elevation bump map.
Post by: TheBadger on September 12, 2012, 03:46:27 am
Hi Ben. I need a little hand holding here.
The first two images you posted are super crisp. The others get a little soft. But if Im reading these posts correctly the data your posting got bigger or more detailed than the original files? Is that right? so whats happening then?

Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 12, 2012, 05:39:03 am
Quote from: TheBadger on September 12, 2012, 03:46:27 am
The first two images you posted are super crisp. The others get a little soft. But if Im reading these posts correctly the data your posting got bigger or more detailed than the original files? Is that right? so whats happening then?


As I increased the resolution of the terrain and texture I moved closer to the moon to explore the limits of the new data.  The moon is a tricky beast to guess the scale, kinda like a crater fractal... no matter how close you get you can still see small craters Try watching the Apllo 11 LEM footage as it comes in to land.  Without the audio it's very hard to tell what altitude it's at.
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 12, 2012, 08:27:06 am
For comparison here are some quick renders from this dataset



Note that the textures contain shadows which can make it hard to evaluate the terrain.
Title: Re: Lunar digital elevation bump map.
Post by: TheBadger on September 12, 2012, 11:52:53 pm
TY
Title: Re: Lunar digital elevation bump map.
Post by: pixelpusher636 on September 13, 2012, 12:00:24 am
BigBen. Not even close to a waste of time. Your contributions to these forums are priceless and are always well received. Its good to see your still shining. I will certainly be downloading this data tomorrow. I am however anxiously awaiting your site to get worked out so I can download monument valley etc and learn from the data provided! Thanks again!
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 13, 2012, 03:26:18 am
Quote from: pixelpusher636 on September 13, 2012, 12:00:24 am
BigBen. Not even close to a waste of time. Your contributions to these forums are priceless and are always well received. Its good to see your still shining. I will certainly be downloading this data tomorrow. I am however anxiously awaiting your site to get worked out so I can download monument valley etc and learn from the data provided! Thanks again!


Trying to find the time. I had some "grand" plans for my site, but life got in the way. It was a separate WordPress installation but it got out of date and had some security issues recently which is why the commenting is so restrictive.  Just went looking for the files and they weren't where they were supposed to be so it looks like I may just pull the plug and start again, incorporating it into my "main" occasionally updated site.

Good news is I decided to open up the data download a bit more by exposing directory listings. Don't really care about stats, as long as I know that a few people are using them... and the stats I had form the old site were more than enough confirmation. Simpler for me and more sustainable.

Old zip file uploading: http://files.bigben.id.au/terragen/terrains/us/monument_valley-goose_necks/ (http://files.bigben.id.au/terragen/terrains/us/monument_valley-goose_necks/) (around 160Mb)
Title: Re: Lunar digital elevation bump map.
Post by: bigben on September 13, 2012, 07:12:01 am
Started rearranging my site. Updated URL in the post above.
Title: Re: Lunar digital elevation bump map.
Post by: raf3d on March 31, 2015, 11:16:17 am
Hi Bigben,

Just a little post to thank you very much for you lunar digital elevation bump map. I found it there and use it in a 3D animation for the planetarium of "La cité des sciences" in Paris. It is a show about moon creation et evolution. I don't use Terragen but 3dsmax/Vray, and i used your map in Vray Displacement for 4K rendering. I'll post an image here when it will be finish, if you're intrested.

Well, your work was not a wast of time, and it will serv for education. Tell me if you want to be named in the credits of this show.

Thx again !

Raf3d
www.raf3d.com
Title: Re: Lunar digital elevation bump map.
Post by: bigben on March 31, 2015, 03:39:35 pm
No real need for credits on this one as all I did was reformat existing data.  It would be nice to see an image of the finished work, and thanks for the courtesy of letting me know where it's being used.