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General => Terragen Discussion => Topic started by: mayda on January 12, 2007, 03:20:20 AM

Title: my way to get STARS!
Post by: mayda on January 12, 2007, 03:20:20 AM
hi guys!

i will answer to all people has ask me the way to create stars like that attatched

first of all you need a starfield image...
that you've to go in the background object... change his shader with a default shader
go into the proprieties of it and set the starfield image in the diffuse colour and in the luminosity colour...
set the luminosity to an higher value (in this image i've used 10)....
that's all...
hope that this may be helpful!

may
Title: Re: my way to get STARS!
Post by: Dark Fire on January 12, 2007, 06:54:16 AM
Thanks - that is very helpful. Perhaps a starfield image could be included with T2TP.
Title: Re: my way to get STARS!
Post by: mayda on January 12, 2007, 09:52:44 AM
maybe not enought interesting...

:'(
Title: Re: my way to get STARS!
Post by: The Geostation on January 12, 2007, 10:26:22 AM
Nice one mayda, those stars have been executed really convincingly  :).   This thread should be added to the list of tutorial links.

Andrew Randle
The Geostation
Title: Re: my way to get STARS!
Post by: rcallicotte on January 12, 2007, 10:34:36 AM
Thanks, Mayda.  This is cool.
Title: Re: my way to get STARS!
Post by: edlo on January 12, 2007, 04:03:17 PM
Amazing! not the stars, the brilliant rock formations, the eclipse effect and the composition really something :P ;D
Title: Re: my way to get STARS!
Post by: Angealus on January 13, 2007, 10:21:29 AM
Anyway you could spell that out a little better Mayda? Or possibly put the tgd in here so I can see what you're doing? Thanks.
Title: Re: my way to get STARS!
Post by: hyper1 on January 13, 2007, 12:22:55 PM
May,

I agree that this should additionally be placed in the "Tutorial" section.  The subject of starfields comes up frequently and you have a very practical approach.  I might suggest that if you make a little tutorial along these lines to include a .tgd file and perhaps some links to some freeware that generates starfields such as "Universe".
Thanks for sharing,
Gary Poole
Quote from: mayda on January 12, 2007, 03:20:20 AM
hi guys!

i will answer to all people has ask me the way to create stars like that attatched

first of all you need a starfield image...
that you've to go in the background object... change his shader with a default shader
go into the proprieties of it and set the starfield image in the diffuse colour and in the luminosity colour...
set the luminosity to an higher value (in this image i've used 10)....
that's all...
hope that this may be helpful!

may
Title: Re: my way to get STARS!
Post by: moodflow on January 13, 2007, 01:46:43 PM
Thanks for the tip. 
Title: Re: my way to get STARS!
Post by: FrankThomas on January 13, 2007, 04:04:04 PM
That actually works a whole lot better than the way I was doing it - thanks for that :)

[edit] don't forget to set the projection to "through Camera" though or it looks weird
Title: Re: my way to get STARS!
Post by: crazymonkey on January 14, 2007, 06:41:14 AM
thanks mayda :)
Title: Re: my way to get STARS!
Post by: mayda on January 15, 2007, 09:33:18 AM
ok... i'm back in the forum just today...
i'll work to create a more accurate tutorial with some tgd....
thanks for your interest
Title: Re: my way to get STARS!
Post by: Angealus on January 15, 2007, 01:11:22 PM
Thanks for the limited tutorial Mayda. I used it to create this. ;D
Title: Re: my way to get STARS!
Post by: mayda on January 16, 2007, 02:08:11 AM
i'm ready to write my tutorial accurately...
first of all you've to put the attatched "stars.jpg" files into your folder c:/ ....
this is a starfield that i've generated using glitterato (a photoshop plugin, youi may download it for free... it's a limited time demo)
http://www.flamingpear.com/download.html

first step, we want to add this starfield to the sky.
Go in the object panel, select your background, than the surface shader tab.
Into this you've to create a new shader, a new "default shader" where now there's a background shader.

Go into it and set the stars.jpg as a background for diffuse colour and for luminosity.
Set the luminosity value at higher value if you want to make stars visible by day.
Title: Re: my way to get STARS!
Post by: mayda on January 16, 2007, 02:11:36 AM
movin' your camera you may obtain something like this
Title: Re: my way to get STARS!
Post by: mayda on January 16, 2007, 02:14:27 AM
and now the best touch!
simply add a cirrus layer and put a planet for half before your sun (visible disk checked and increase the radius of it).
all that fabulous colours are generated by tgd...

thant's all!
hope that this tut will be better of  the previous version....
have a good day!
Mayda
Title: Re: my way to get STARS!
Post by: mayda on January 16, 2007, 02:42:33 AM
Quote from: Angealus on January 15, 2007, 01:11:22 PM
Thanks for the limited tutorial Mayda. I used it to create this. ;D

Beautiful attempt Angelalus! maybe if you'll  increase the clouds size of the planets you'll see more realistic touch!
Title: Re: my way to get STARS!
Post by: Will on January 16, 2007, 06:11:38 AM
you can get his .tgd file on mY NAsa World Wind thread :)

Regards,

Will
Title: Re: my way to get STARS!
Post by: oggyb on January 16, 2007, 09:01:56 AM
Good tutorial.  I plan to use this at some point :)

M.
Title: Re: my way to get STARS!
Post by: Oshyan on January 19, 2007, 07:22:02 PM
I loved this image, saw it a week or two ago and was really impressed.

I'm going to leave this thread here as discussion but please do *repost* the tutorial alone (as a new post) in the Tutorials section. That way it will be the first post and people can follow it easily, instead of having to browse through extended discussion.

Also note that "Through Camera" projection is not strictly necessary - it will give you likely more detail and if you are using a starfield image that shows exactly what you want to see in the background of your image, then this is the way to do it. But you can also use a larger spherically projected starfield image of the whole sky and set the Image Map shader to Spherical Projection. That way you get more realistic star coverage and you'll have unique stars wherever you look, instead of the same static star image.

- Oshyan
Title: Re: my way to get STARS!
Post by: RealUser on January 21, 2007, 07:07:29 AM
 :D Thanks Mayda, that works perfectly!
Title: Re: my way to get STARS!
Post by: RealUser on January 21, 2007, 11:38:05 AM
OK, i found out how to make starfields in TG2 with an other technique. Basically you put a power fractal shader into the default shader instead of a picture. You have to play with the values a bit to get the right look, but that is no problem i think. I have attached the .tgd-file and a picture.
Title: Re: my way to get STARS!
Post by: Dark Fire on January 21, 2007, 11:42:21 AM
That's a very cool picture and a useful technique for making stars...
Title: Re: my way to get STARS!
Post by: 3DGuy on January 21, 2007, 11:48:47 AM
That's basically what I did in 3DS for making stars. Although over there it's noise (which is also fractal based).
Title: Re: my way to get STARS!
Post by: mayda on January 26, 2007, 09:16:02 AM
i've written  a short and clear version there!
http://forums.planetside.co.uk/index.php?topic=629.0
Title: Re: my way to get STARS!
Post by: Sarge-David on February 03, 2007, 09:01:50 AM
something gotta be done about the planets and their blueness
can ruin a picture like the blue one...would of liked a normal looking moon thing lol
Title: Re: my way to get STARS!
Post by: RedSquare on February 03, 2007, 04:55:46 PM
Blue planets?  It's called water. :)