uberzev
 |
1/1 = 300
1/2 = 295.83 1/3 = 291.92 1/4 = 288.22 1/5 = 284.73 1/6 = 281.41 1/7 = 278.26 1/8 = 275.24 etc... I suck at math so perhaps someone can explain the logic of this... |
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| Posted: March 10, 2011 2:47 am | ||
Sphinx.
 |
Well, what are we looking for? A way to determine the relationship between noise scale and?
|
|
| Posted: March 10, 2011 3:49 am | ||
|
uberzev
|
I'm just saying why not make the noise scale attribute work more like the regular scale?
For example say I want to blend two noises together, one twice as large as the other (as in my Cracked Earth filter). It's annoying to have to use trial and error just to find the correct values. |
|
| Posted: March 10, 2011 4:34 am | ||
xirja
 |
This is as close as I've been able to come so far...
 ScaleCenter4.ffxml _____________________________________________________
http://web.archive.org/web/2021062908...rjadesign/ _____________________________________________________ |
|
| Posted: March 7, 2017 7:20 am | ||
| raabix |
I went down the rabbithole a bit further, however I need a real answer to this. I was not really able to reverse engineer the formula since it is not linear and I guess they do some nasty value-remapping as well.
Scale Texture Scale 1 => 300 2 => 295.8337 3 => 291.918 4 => 288.2243 5 => 284.72886 6 => 281.4115 7 => 278.25486 8 => 275.24417 9 => 272.36648 10 => 269.61056 |
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| Posted: July 26, 2019 9:40 am | ||
| David Roberson |
I've come back to this thread a few times, and even copied the info to a note in one of my lab filters. I haven't had much luck with scaling noise starting from a random base scale (i.e. a filter was built using, say, 250 as the default max). A formula for determining half-scales down from that point would have come in very handy. It's especially hard to eyeball scale ratios when Seamless Tiling is on, since the overlap that hides the seam is fixed.
Ultimately, it's a question for Vlad, assuming it's not part of proprietary knowledge. |
|
| Posted: May 22, 2020 12:38 am | ||
Indigo Ray
 |
I attempted various regressions but did not succeed. The closest I got was log-power:
slider value = -A * ln(actual scale)^2 + 300 (where A is just some number) (I tried other powers besides 2, by the way) I will point out that when the slider is at 0, the scale is 1/1500 of when the slider is at 300. |
|
| Posted: June 2, 2020 6:41 pm | ||
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