Celestia Forums

im trying to transform a normal map to a bump map (celestia related), ive found this tutorial but ive been unable to follow the steps:

[url]http://www.textureshock.com/tutorial2.htm
[/url]

When i place the layer (black one) under the normal map nothing happens and i was skeptical something would, anyhelp please?

Why would you want to do THAT??

Celestia always calculates internally with normalmaps NOT with bumpmaps. If you assign a bumpmap in the solarsys.ssc file, it's read by Celestia and internally converted to a normalmap!

Fridger

Oh the bump map isnt to be used by celestia for rendering, its to be used as a tool for making textures for celestia.

becouse with a bump map by playing with contrast and brightness i can work out waterlevels/ coverage, but i cant do it with a normal map.

Strictly speaking, what you want is a height map. The idea is the same, but avoids the mental anguish.

Supposedly CrazyBump will do this. It's a commercial product, though, and I haven't tried it. http://www.crazybump.com/

Ive tried crazy bump but the problem is that it gives me a map with a light source (so it has shadows and highlights), and it wont process mormal maps of 16k.

I've seen some postings which claimed the Nvidia's nvdxt used to have this functionality. I dunno if it still does.

Dont worry i manage to adquire the data through other means

thank you anyway

or ask the person who made the normal map for celestia for the orig. 16 bit data

john Van Vliet wrote:or ask the person who made the normal map for celestia for the orig. 16 bit data

Sorry for the OT John, but I need to contact you privately.
Can you please PM me an email address where I can contact you?
Thanks a lot.
Bye

Andrea