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General => Terragen Discussion => Topic started by: PabloMack on August 03, 2010, 04:52:59 PM

Title: Crater Shader?
Post by: PabloMack on August 03, 2010, 04:52:59 PM
I have been trying to create a moonscape and I am getting the impression that the "Crater Shader" only makes a single crater.  Is there a procedural shader that will scatter a pattern of craters with a noise distribution of sizes and locations over the entire surface of the "planet"?

Thanks
Title: Re: Crater Shader?
Post by: domdib on August 03, 2010, 05:29:58 PM
This may be helpful: http://forums.planetside.co.uk/index.php?topic=7327.30
Title: Re: Crater Shader?
Post by: dandelO on August 03, 2010, 07:02:59 PM
And... http://www.theglasseye.nl/terragen/
Title: Re: Crater Shader?
Post by: PabloMack on August 03, 2010, 08:46:25 PM
So you still need one Crater Shader node per crater.  Is this correct?
Title: Re: Crater Shader?
Post by: TheBlackHole on August 03, 2010, 09:30:00 PM
Yes.
Title: Re: Crater Shader?
Post by: cyphyr on August 04, 2010, 04:05:55 AM
If you dont need to cover the entire planet, just the area within view then you could try the shader array, four or five offset instances of differing sized craters may do the trick.
I have not tried this but it could work ... .. .
:)
Richard

ps: I'm having a go at a simple setup now and it looks to be slooooow. I'll post a tgd and screeny/render in a bit :)
pps: nope this is taking waaay tooo looong and I've given up on this approach.
Title: Re: Crater Shader?
Post by: PabloMack on August 04, 2010, 10:27:46 AM
Thank you all for the replies.
Title: Re: Crater Shader?
Post by: airflamesred on August 04, 2010, 08:08:18 PM
Heres a funny thing
I answered dandelOs questionaire on his site (an un paralleled experience I might add) and got a prize. That prize - a crater shader! Haven't a clue what it does but I'm guessing it shades craters.