Okay, I cant find anything on Veronoi noise.

Themodman101 · April 13, 2011, 11:56:03 AM

Hey everyone, Ive used the search function and went through 12 pages of the most recent stuff. And I couldn't figure out how to get Vernoi noise to work, or what exactly it is. Even Google just brings up a loooot of math stuff that doesn't seem to really make much sense.

I see people here use a lot of vernoi noise to get realistic rock formations on cliffs, I cant really figure out how to get the same results without using vernoi.

Thanks everyone in advance, you all are mathematicians of the highest caliber.

EDIT: Btw, I havn't used T2 for very long, I got it from school.

Tangled-Universe · April 13, 2011, 11:57:54 AM

Quote from: Themodman101 on April 13, 2011, 11:56:03 AM
Hey everyone, Ive used the search function and went through 12 pages of the most recent stuff.

There's a lot of old good stuff on these forums, but perhaps not in the first 12 pages.

Search the forums for voronoise or cracks.

Themodman101 · April 13, 2011, 01:21:13 PM

I still haven't found anything that explains what it is, i just looked again, as it only comes up with 4 topics one of which is mine.

maybe they got deleted because of age? sorry, I am doing my homework, theres just nothing on the paper.

EDIT: I looked at the cracks search again and went through a LOT of them, and all I can find is the Cracks shader from David0.. Which doesn't explain Vernoi Noise at all.

Hannes · April 13, 2011, 01:42:37 PM

Don't want to be a know it all, but it's "voronoi", not "vernoi", so it's no surprise that you haven't found anything.
good luck, I hope that you understand all this function stuff. I didn't!

choronr · April 13, 2011, 01:43:03 PM

Quote from: Themodman101 on April 13, 2011, 01:21:13 PM
I still haven't found anything that explains what it is, i just looked again, as it only comes up with 4 topics one of which is mine.

maybe they got deleted because of age? sorry, I am doing my homework, theres just nothing on the paper.

EDIT: I looked at the cracks search again and went through a LOT of them, and all I can find is the Cracks shader from David0.. Which doesn't explain Vernoi Noise at all.

Try this: http://en.wikipedia.org/wiki/Voronoi_diagram

Themodman101 · April 13, 2011, 01:55:03 PM

@Hannes:

Actually thanks, that would do It I suppose, I'm in University right now in a lecture. Hadn't looked at it directly in a few hours.

@Choronr:

Thanks for the link, now i know how it works. But I still cant get a result in TG2, its just not doing anything. Lemme grap a screen capture of my node list when I get home. Class is 4 hours long so.. Boo. lol

Henry Blewer · April 13, 2011, 04:15:10 PM

It's a function. You need to begin the node chain with a 'Get Position in texture'. Connect this the the left input of the voronoi node. I enter values by hand for the scale and seed. Next, connect the voronoi node to the blend by input of a displacement shader. The displacement shader can be connected to the child layer of a surface layer.

That's the very simplified version. It will get you started. Using voronoi effectively takes more work. Sometimes instead of a get position in texture, you need to use get position in geometry.

Using Surface layers and powerfractals is a great way to learn the basics. I learned more by making experimental node chains and connecting these to powerfractals. Anyway, I hope this helped.

Henry Blewer · April 13, 2011, 04:35:37 PM

Here's a link to a fantastic tgd file. http://forums.planetside.co.uk/index.php?topic=9182.0

dandelO · April 13, 2011, 05:56:57 PM

davidO!

airflamesred · April 13, 2011, 07:52:01 PM

Yes David that caught my eye as well!!!

dandelO · April 13, 2011, 08:08:51 PM

dandelO · April 13, 2011, 08:13:18 PM

The cracks I posted are based on a Voronoi noise. Njeneb's advice above is good to get a pattern started to work with. The easiest way to enter the values for scale is by using a 'constant scalar' node which just outputs whatever number you type in metres.

Themodman101 · April 13, 2011, 09:11:47 PM

Oh daggonit! Thanks dandel0.. whoops.. lol

Thanks for the hints guys, I got it working using your suggestions.. Fantastic, I wish I was good with this math related stuff but I failed college math, I just aint a good math person.. Of course I passed the second time. lol

Anyways, i'm getting used to it now. thanks for all the hints, and sorry for messing up your name XD

Okay, I really dont think this warrents a new topic.. What do you think I could do to improve this render?

Full link http://img707.imageshack.us/f/crazyrenderedited.jpg/ (Wont load the img on the forums for me)
I'm currently working on the clouds. And my render time is 32 Minutes at 1280x720, and 2 hours at 1920X1080, is that usual?

bobbystahr · April 15, 2011, 09:03:12 PM

Nice image...the times seem appropriate to the sizes but a lot depends on your computer.
re: unable to upload to the forum...too big at 722kb...the forum limit is 512 kb.. ...

Allowed file types: doc, gif, jpg, mpg, pdf, png, txt, zip, tgd, 7z, rar, jpeg, tgc, ter, tmd, tgo
Maximum attachment size allowed: 512 KB, per post: 100

Themodman101 · April 15, 2011, 10:16:14 PM

Ah okay, that makes sense.. Thanks