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Planet Rings, How?
About Truespace Archives
These pages are a copy of the official truespace forums prior to their removal somewhere around 2011.
They are retained here for archive purposes only.
Planet Rings, How? // Work in Progress
Post by Oldwrinkly // Jan 27, 2008, 11:06am
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Oldwrinkly
Total Posts: 7
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I am trying to do realistic planet rings and the only way I can see how to do this is to flatten a Torus, cut out the centre to size and texture.
The only problem is the textures do not follow the circle, but go accross it.
Anyone know a way of achiving this? PLEASE :) |
Post by frootee // Jan 27, 2008, 11:22am
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frootee
Total Posts: 2667
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Hi OldWrinkly. Welcome to the forums!
I think you may need to change the mapping. For a torus, maybe use cylindrical or spherical mapping? |
Post by TomG // Jan 27, 2008, 11:28am
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TomG
Total Posts: 3397
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For far off shots, I have a ring shader that made planet rings on a flat plane, it's a Shaderlab shader (Shaderlab itself is free now, search for Primitive Itch Shaderlab online and it should uncover the download page).
These shaders are not so good for close up shots though, nor if you want to fly through the rings.
http://www.tmgcgart.com/ShaderLab/html/shader_listing_4.htm#RingSystem
http://www.tmgcgart.com/ShaderLab/html/free_section.htm
It is possible to animate the rings using the shader though.
HTH!
Tom |
Post by Oldwrinkly // Jan 27, 2008, 11:52am
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Oldwrinkly
Total Posts: 7
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Thanks for your replies, every little helps.Oldwrinkly |
Post by kena // Jan 27, 2008, 12:52pm
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kena
Total Posts: 2321
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Here is a planet and it's moon that I made a few years ago. Maybe that will give you what you need.
The planet has a ring around it.
10773 |
Post by b_scotty // Jan 27, 2008, 12:56pm
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b_scotty
Total Posts: 176
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Hi Oldwrinkly!
I used the free darktree Simbiot for trueSpace to make these:
http://www.orbknight.com/gas_giant_background_Medium.jpg
http://www.orbknight.com/ringedplanet.jpg
You can get the Simbiot shader here. (http://www.darksim.com/html/download_simbiont2.html)
Don't forget to grab the darktree repository on the same page, it has (among other things) the ring darktrees I used in the above image. Then you can just map them to a plane, or a flattened cube, and render away. Hope that helps! |
Post by kena // Jan 27, 2008, 12:58pm
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kena
Total Posts: 2321
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wow - much better than my rings!!! I gotta go check the repository! |
Post by jamesmc // Jan 27, 2008, 1:57pm
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jamesmc
Total Posts: 2566
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Another carrot in the pot of confusion. :
I just used a home made ring, used it as a normal and transparency map then added a glass shader to it in trueSpace
I used a cylinder with 32 sides, flattened it out and booleaned the center with the same size cylinder. |
Post by b_scotty // Jan 27, 2008, 3:04pm
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b_scotty
Total Posts: 176
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The moral of the story here is that there is no wrong way to do it.... whatever gives you the result you like is the right way for you! :)
Render on! |
Post by kena // Jan 27, 2008, 3:34pm
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kena
Total Posts: 2321
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Here is a nice ring map for you.
10778
10779 |
Post by Cthulhu // Jan 27, 2008, 7:36pm
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Cthulhu
Total Posts: 48
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10787
I could've sworn there was a shader for this, but I made a quick and dirty one in ShaderMagic anyway.
10788
The shader is attached below (just unzip for the ".smb" shader file). Load it with ShaderMagic as reflectance. You can then set the ring color with any color shader (plus an additional ring color). I just painted it on a plane in the example above.
ShaderMagic is available here... (http://home.comcast.net/~ian_kirkley/3d/pages/files.htm) |
Post by Oldwrinkly // Jan 28, 2008, 7:19am
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Oldwrinkly
Total Posts: 7
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You are all so very helpfull, It gives gives me heart to keep going, at 78 I could do with a new heart anyway :) |
Post by W!ZARD // Jan 30, 2008, 2:39am
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W!ZARD
Total Posts: 2603
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You are all so very helpfull, It gives gives me heart to keep going, at 78 I could do with a new heart anyway :)
Nah! I bet it won't be long before you'll be abler to run 'rings' around us youngsters! Age and cunning beats youth and enthusiasm every time - or so my dear old Mum would have me believe!. |
Post by Oldwrinkly // Jan 30, 2008, 9:12am
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Oldwrinkly
Total Posts: 7
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Thanks Wizard, I did start off in the dark ages using graph paper and loads of code just to do a simple matchstick animation, I thought it was brilliant then.
Waded through Amos, Amal,Dark Basic, Poser and of course Truespace since then.
The only fault now is that my brain seems to have a leak somewhere as I have to write reminders now or I forget.
It's all good fun though so my advice to you all out there is "Keep up the good work" :)...Oldwrinkly |
Post by Oldwrinkly // Jan 30, 2008, 9:23am
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Oldwrinkly
Total Posts: 7
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PS Wizard... My son was a school teacher in Christchurch until recently, just returned to the UK :) |
Post by W!ZARD // Jan 30, 2008, 6:08pm
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W!ZARD
Total Posts: 2603
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PS Wizard... My son was a school teacher in Christchurch until recently, just returned to the UK :)
It's a small world Oldwrinkly (or can I call you Wrinkle for short?;):D). I'm surprised your son returned to the UK though - most Brits who come here tend to stay, myself included (I was born in Kent). |
Post by Oldwrinkly // Jan 31, 2008, 1:05am
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Oldwrinkly
Total Posts: 7
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If he takes my advice he will return. :) |
Post by Anunnaki // Jan 31, 2008, 1:25pm
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Anunnaki
Total Posts: 18
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http://forums.caligari.com/discus/messages/74/20051.html?
Check out the link to the old Caligari forums. I posted a quick and dirty tutorial using Nurbs to create easy planet rings. Cheers!
Vincent D. Brumback |
Post by Oldwrinkly // Jan 31, 2008, 11:53pm
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Oldwrinkly
Total Posts: 7
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Thanks for the link Anunnaki, Looks interesting,will make use of it.Oldwrinkly |
Post by rickl // Feb 1, 2008, 6:18pm
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rickl
Total Posts: 9
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Another carrot in the pot of confusion. :
I just used a home made ring, used it as a normal and transparency map then added a glass shader to it in trueSpace
I used a cylinder with 32 sides, flattened it out and booleaned the center with the same size cylinder.
this is only my second post so I hope I'm not breaking any rules.
I download you're home made ring picture and used it as a color map.
i hope it's ok.
i did the same thing with a cylinder as you did.
and here's what i came up with: if I posted it right.:D
i'm still learning... i'll explain, follow link:
http://forums1.caligari.com/truespace/showthread.php?t=4897
-rick |
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