A better Moon

[chris]

The topographic data acquired by JAXA's Kaguya mission has been released to the public, and now we finally can produce a decent normal map for the Moon. Here's are two images from Celestia using a 5760x2880 normal map and the high resolution albedo map from the standard Celestia package:

The second image is deliberately overzoomed to show the limitations of the data. For a better look at the possibilities of this new data set, see Jason Perry's video:

http://www.youtube.com/watch?v=arMmSCQiuic

I explicitly did not reduce the normal map to a power of two size. Newer graphics cards fully support non-power-of-two textures, and I wanted to preserve as much detail as possible. The texture is compressed with DXT5 (aka BC3nm) compression. I started with the normal map produced by Mike Howard (see this thread: http://www.unmannedspaceflight.com/inde ... =6281&st=0 ), rotated it by 180 degrees, and compressed it with nvcompress (CUDA on.) There's more work to done with the polar regions, where some processing artifacts remain.

--Chris

[john Van Vliet]

two screen shots
the first one is the NEW one at default settings
and the second is my OLD hand drawn height map

Code: Select all

cel://Follow/Sol:Earth:Moon/2009-11-04T03:46:18.16477?x=dehHvOve6P///////////w&y=nn0ZxwR/9////////////w&z=P3y107qB9f///////////w&ow=0.536719&ox=-0.100317&oy=0.828144&oz=-0.126676&select=Sol:Earth:Moon&fov=25.2051&ts=1&ltd=0&p=0&rf=317335&lm=2&tsrc=0&ver=3

---- repost -------
i just made a normal with my copy of nms ( mine uses unsigned 16 bit)
the zip is a png image
using my default settings and the default 16 bit tiff from above
5670x2880.png
http://www.zshare.net/download/6793328103b3d90b/

------------------- edit -------------------------
the south pole and north still need some work
the new and the old normal map
a shot of the south pole

old

[john Van Vliet]

and a 1 k copy of LALT_GGT_MAP.IMG < isis2std > to a png , min =0% max =100%

[t00fri]

and a 1 k copy of LALT_GGT_MAP.IMG < isis2std > to a png , min =0% max =100%

Why don't you use isis3 to convert the PDS/Img topography data to 16bit signed integer, as needed by my nms normalmap tool. Making a HIGH-QUALITY normalmap this way takes at best 2-3 minutes

See my post here:

viewtopic.php?f=7&t=15407&start=3
Fridger

[john Van Vliet]

i work mostly in unsigned so i ran the raw2isis then fx { (f1*1000)+5912 } to give me a image
0.969208 to 12407 then exported it

for the normal i used a hacked copy of nms that imports a unsigned integer
then for this 1k copy
nmsu 1737.4 1024 1 0 < 1k.gray > 1ka.ppm

inverted

[fsgregs]

Chris:

The moon looks great. When will the new normal map be available for download? Also, am I correct in understanding that your reference to the high albedo map of the moon refers to the Medres moon.pg texture in 1.6.0"

Frank