just a reposting from umsf

"MESSENGER Global Mercury Mosaic, Based on flybys 1, 2, and 3 (plus M10)"
http://www.unmannedspaceflight.com/inde ... topic=6356

and a link to the 1.8 gig map .cub
http://astrogeology.usgs.gov/Projects/Messenger/
http://astrogeology.usgs.gov/Projects/M ... Global.cub

_________________
"I don't pitch Linux to my friends, I let Microsoft do that for me."
Using OpenSUSE 42.1 & Scientific Linux 6.7

Hey John,

thanks a LOT for that link! The quality looks exceedingly good and highly motivating...

Let's go.

Fridger

Friends,

after John posted that link of the brand new, highest resolution (~32k!) simple cylindrical Mercury map from several Messenger flybys, I have quickly produced with ISIS3 a 16k JPG texture from the original .CUB file, along with a set of totally unmodified 16k hires sreenshots with Celestia.

The hires quality is VERY good, very few apparent artefacts ...But still it's quite a bit of texture work to get these data into a pleasing smooth colored Mercury texture. Of course, I will make VTs (dds) with my F-Tex-Tools from the 32k texture for Celestia.Sci.

Here are four shots to give you a flavor of the great quality of these new map data:

++++++++++++++++++++++++++++++++++++
YOU MUST CLICK on the images!!
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Enjoy,
Fridger

Hi all,

meanwhile, I used my F-TexTools for making VTs in DXT1 format. I first converted the above, original 30662x15332 .CUB data file to a true 32k x 16k size, using the ISIS3 tool 'enlarge' with Cubic Convolution Interpolation. Next I converted the 32k .CUB to a binary grayscale file with 'isis2raw' and quickly generated 512 VT tiles in high-quality DXT1 format from it with my 'txtilesDXT' tool. The running was all completed within just a few minutes...

From the resulting 32k VT set, let me show one close-up example for the high definition of the Mercury surface that is available now, due to the Messenger probe:

++++++++++++++++++++++++++++++++++++
Don't miss clicking on the image!!
++++++++++++++++++++++++++++++++++++


It was gently colorated with GIMP from the true-color photo template that I also used for my 8k Mercury texture in the 1.6.0 Celestia distribution.

Enjoy,

Fridger

some shots from Celestia of the 32 k map i am uploading












ps is there a way of using the sites upload and have a clickable thumb

like the imagebam thumbs
-- like this ?? --

Free Image Hosting by ImageBam.com

_________________
"I don't pitch Linux to my friends, I let Microsoft do that for me."
Using OpenSUSE 42.1 & Scientific Linux 6.7

Certainly...and it's much more convenient than in shatters.net.

You must use the regular "Post Reply" form (on the right) or the "Quote" form. Then you click Img from the menue on top. Follow the instructions. The result is configurable to some extent, but the image size never exceeds width=700 px, while a click on the displayed image gives full size. You upload the image directly from your harddisk, with a convenient file browser. Never be concerned about directories etc...

Nice Mercury shots, but the shading of the 32k texture appears somewhat low...

Fridger

that is my normal editing
i like to remove a lot of the shadows .Not completely but most of it .

i will see about the crackable thumb next post

_________________
"I don't pitch Linux to my friends, I let Microsoft do that for me."
Using OpenSUSE 42.1 & Scientific Linux 6.7