MOLA Map Shader + Mars Files = Confusing Crap!

Started by Imatk, May 07, 2009, 03:32:21 PM

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Imatk

OK can someone, VERY SIMPLY, tell me what file or files I need to make a Mars planet?

I've downloaded, it seems, all of the mega......eb files and .lbl files and everytime I load these files I get a completely black terrain with no surface whatsoever.

So does anyone have a "Step-by-Step" instruction on how to get this friggin thing to work because I'm about the snap!

Oshyan

First, make sure you have connected the MOLA shader to the terrain network, the Compute Terrain at a minimum.

Also verify that you are loading the correct data type and resolution. TG2 supports 16, 32, 64, and 128 pixels per degree data. 128 pixel is the highest resolution data supported. There are lower resolution data sets but options for placing them on the planet are not currently provided. The file type you want is the IMG file. I'm not sure if the LBL files are used for georeferencing, but you might as well have them in the same directory.

Next, you should load the IMG file into the MOLA Map Shader. At this point it should load the data automatically. Depending on your camera position you may not see anything immediately, so I recommend zooming out so you can see the whole planet. You may also want to increase the Height Multiplier to make the terrain more obvious for testing purposes. Of course you would return this to 1 to maintain realism once you verified that it is working.

Let us know if you have followed all these steps and it's still not working.

- Oshyan

Kevin F

Presumably it's also necessary to alter the planet radius from 6.378e+006 to something proportionally the same as Mars. In these units what would that be?

JimB

If you read 6.378e+006 as 6,378 km (the larger radius of Earth), Mars would be 3,397 km at the equator, which would therefore be: 3.397e+006

Ummm, I think....

http://wiki.answers.com/Q/What_is_the_radius_of_planet_mars
Some bits and bobs
The Galileo Fallacy, 'Argumentum ad Galileus':
"They laughed at Galileo. They're laughing at me. Therefore I am the next Galileo."

Nope. Galileo was right for the simpler reason that he was right.