Filter Forge - Effect Scaling to Match Noise Scale Error

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xirja Idididoll Forcabbage Posts: 1698 Filters: 8	I want to be able to self offset a Perlin an amount relative to the scale. So here is the filter... ScaleCenter.ffxml _____________________________________________________ http://web.archive.org/web/2021062908...rjadesign/ _____________________________________________________
	Posted: July 16, 2016 4:56 pm	Details E-Mail
xirja Idididoll Forcabbage Posts: 1698 Filters: 8	It almost works, but the exponent, it seems, is somewhere between 3 and 4. What is the magical number, or is this a bug? _____________________________________________________ http://web.archive.org/web/2021062908...rjadesign/ _____________________________________________________
	Posted: July 16, 2016 4:58 pm	Details E-Mail
xirja Idididoll Forcabbage Posts: 1698 Filters: 8	Following are three images while zooming in. Notice that within the circled area, the upper left branch is attached, then detached, then attached again. It should remain the same at all scales. _____________________________________________________ http://web.archive.org/web/2021062908...rjadesign/ _____________________________________________________
	Posted: July 16, 2016 5:00 pm	Details E-Mail
xirja Idididoll Forcabbage Posts: 1698 Filters: 8	z2 _____________________________________________________ http://web.archive.org/web/2021062908...rjadesign/ _____________________________________________________
	Posted: July 16, 2016 5:01 pm	Details E-Mail
xirja Idididoll Forcabbage Posts: 1698 Filters: 8	z3 _____________________________________________________ http://web.archive.org/web/2021062908...rjadesign/ _____________________________________________________
	Posted: July 16, 2016 5:01 pm	Details E-Mail
Indigo Ray Adam Posts: 1442 Filters: 82	It's not a bug. There's some function that relates the slider value "scale" and the actual scale of the noise. The exponential function you have seems pretty close, but it's not the same. I don't know what the magic function is, but something doesn't seem right about yours. When the slider "scale" = 0, the output of your function = 0, but the actual scale of the noise != 0.
	Posted: July 16, 2016 8:13 pm	Details E-Mail
xirja Idididoll Forcabbage Posts: 1698 Filters: 8	Not 0, right, just dealing with the big stuff first. But please, for the love of goats or Lua, write ~=0 here. The number seems to be closer to 4 than 3 (3.67 and no more pinched blobby (see attached)). But that 'the blob' oscillates out and in and out again, seems to suggest a non-linear scaling that suggests a bug. Saw this other post with no official reply: https://www.filterforge.com/forum/read...0&TID=8254 ScaleCenter2.ffxml _____________________________________________________ http://web.archive.org/web/2021062908...rjadesign/ _____________________________________________________
	Posted: July 17, 2016 6:36 am	Details E-Mail
ThreeDee Lost in Space Posts: 1672 Filters: 112	Scale the perlin with the scale component and save yourself the headache.
	Posted: July 19, 2016 12:41 pm	Details E-Mail