Sharing Noise

And here's the source file for #46.

Blocks,High Pass,Profile Gradient,Elevation Gradient+Gamma.ffxml

And here's the source file for #47.

Cells,High Pass,Profile Gradient,Elevation Gradient+Gamma.ffxml

Excelent.I can't wait to see the results.

Here's the source file foe #48.

Blocks,Perlin,Noise Distortion,Profile Gradientx2,Elevation Gradientx2,High Pass+Gamma.ffxml

Make it one compact filter since the visual output is pretty similar.

This is my Forty-Ninth texture. This is another rock texture that I think turned out pretty well.

This is my fiftieth texture.

Nice texture. You can make another good filter from this.

This is my Fifty-First texture.

This is my Fifty-Second texture.

Here's my texture #53.

And here's the source file for #53. Hey! How'd that blank box get there?

Texture #53 Snippet.ffxml

Is has been 7 months since there is no new posts on this great and useful thread that inspires and helps much for ideas and inspiration, and I wonder if someone else could have additional noise tips, hints, ideas or snippets to share.

i at this time now regretably I do not have any free time for filter forging, so I can't share something myself, sorry

thanks for the answer and the idea to keep adding more and a better guide and how to do it in the best way to help better to this thread, and so is more useful to use, although I totally agree with 3 points, and can be the best way to do it, to be helpful, maybe the description idea, although very good and interesting, maybe not everyone will want to do it, although of course this is up to the author of the filter snippet to do it as suggested well by Skybase

Quote
skybase Let's just say fr om this post onwards, The format should be: 1. A sample image of the noise pattern. 2. A technical description of techniques used. Best if you can describe why you used the technique and how it's useful if used. 3. The snippet of the filter.

I personally can not contribute as I am not in any way such expert and FF GOD as many of you that are are able to use FF with such great knowledge, skills and I admire what you can do

I agree. I try and throw my 2 cents in. I'm new in LUA. And new to using looping. So there is always a place to learn something new. Noise is probably my weakest area. I've been playing with DJI's latest noise offering in another thread. Only way to learn. Just keep doing your thing.

[Sharing Noise Returns]

One of the things to remember with noise is that you can control it. You can apply constraints so it doesn't do entirely random things. You can use this to your advantage when creating fun little designs.

In this post we're going to be taking a look at a method of constraining rotation values on a bomber. Say for example you want something where you have a triangle or an arrow, and you want it to point in 90 degree intervals. So 0, 90, 180, 270 degrees. For this, we need a bit of RGB math.

Here's what I made.


What's fun about this trick is that it lets you quickly generate patterns that appear in a specific manner rather than it being a really random thing where rotation is chaotic.

Here's the technical stuff:
When you look in the filter, I have a Perlin Noise component hooked up to the Round component. Here's what's going on: the perlin noise is generating values that are between 0 and 1, however when you use the eye dropper tool, you'll see the the values on the perlin noise are all over the place. You may have a value of 0.3123, 0.59238, 1, 0.121. 0.11124... etc. When you feed this value directly in the rotation of the bomber, the results are as pretty much chaotic, although it does follow the values.

To stop these super crazy values from happening, we can use RGB math: ROUND to (as the name implies) round the values to what we desire. In my case, I wanted to round the values so that the resulting output corresponds with 90 degree intervals. To do this, I set the granularity value to 25, a dark gray color. By doing this, values get rounded to the nearest numbers so what used to be crazy values floating around, are now 0, 0.25, 0.50, 0.75, 1. Plug that into rotation and you get your 0, 90, 180, 270, and 360 degrees rotated shapes.

In summary: You can control degree intervals using the RGB math components: floor, round, and ceiling.

Important Note: For this to work, use grayscale images. We're only looking at values, not RGB channels!

Try different granularity values. See what happens with clean brightness values like 10, 30, 50, 75 so on.

Please note that I'm providing the ffxml files as an example, don't just rip it off. That's not cool.

SharingNoise - Controlling Noise.ffxml

One neat thing about this trick is that it makes your filters less cluttered. So just like in the example above, say if you want 4 incremental rotations. 0, 90, 180, 270. Usually without doing the trick, you'll have to rotate the particle in which you're about to input by those degrees.



So now you made this little chain. Wonderful, but it's 4 slots taken up just to do 1 thing. And given one of the rules in FilterForge is to cut as much off and optimize a filter, this is a technique we can use to reduce this kind of thing. Keep in mind this depends of course on what you want. But in our case, we have 1 original image, and 3 others are just doing rotations. Why not just do this in the bomber since the bomber has that feature?



This makes it much much more compact, it also reduces the amount of work you have to do by a small bit. It also makes it easier to produce more variations too given now you're controlling all of that through the bomber, not outside the bomber.

Note that when things are procedurally controlled, you have more abilities with less work. The power of FilterForge is the ability to do the work for you, not you doing the work for it.

[Sharing Noise 009 or maybe I lost count]

When it comes to FilterForge, the first thing we all love doing is making abstract art. It's good fun making a mash of interesting shapes and so on. And we always love to just grab the noise components just to make new stuff up. It's fun, easy, and gets interesting results.

Today's noise is super colorful and it's just using 3 perlin noise components with individual waves curve components and 1 RGB channel.



[Technical Notes]
The part that makes this little snippet so powerful is the fact that you have control despite given the randomness of the noise pattern. In this case I'm controlling the minimum sliders on the wave (curves) component that's plugged into the profile of the perlin noise component. What's powerful about doing this is now I have control over each RGB channel, allowing me to control the colors to my liking. If I want more reds, then I can use the slider to add a bit more red. If I want less of other colors, I can slide the sliders around until I get what I want.

This effectively makes life easier as a user of my own filter. It really helps to have these because I'm not just going to use this for 1 project of course, there's a chance I may want to use this elsewhere.

The last "multiply" component's there just to brighten the overall image up. It's not necessary but it looks a bit nicer when the colors are brighter.

Despite it's simplicity, this makes the filter extremely powerful and useful. It allows you to have thousands of potential outputs rather than something that produces the same thing with little variation. Of course, you can expand on this idea easily, try different noise combos... get yourself tons of potential candidates for your next projects.

And hey, just for inspiration sake, here's what I did with this method and this is from 2 years ago: Link to Video

While I'm providing the source, I would like to ask kindly that you use this for ideas, your next inspiration, whatever. Just don't ever resubmit like it's yours, it's wrong to do so.

Sharing Noise 010.ffxml

Checked this one out, thanks again. Using rounding has already proved useful in the triangle drawing experiment.

Great idea Skybase to make this thread, and is really interesting, useful and great, to know so many different ways to use noise in such creative ways.

Thanks also to all the ones that have shared and contributed to this thread and have shown their creative ideas and shared the filter to see how it is done, and so you can use it and learn about it.

I hope that it can be updated with more things, specially now with the new FF 5.0, so to know new creative ways to use noise with the new components.

Nice sharing. It can be a good start to make some new filter.

We are in April 2017 and the last shared noise is from Skybase in May 2016.

I wanted to share some myself, but have to give some cool and interesting, I mean compared to the things that has been already uploaded

If anyone else could have any other suggestions for this kind of shared noises lab would be good

Skybase: A long time ago, you posted a filter dubbed SharingNoise 008.ffxml and were unable to post an image for it. I'm still curious, based on the technical notes, about what that filter produced. Do you still have it? The download link is (at this time) broken.

Again, just scratching an itch. I'll understand it you can't repost it after so long.