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  SiVi - 2D Simplex Noise Visualizer Tool  (Read 4669 times)
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Offline philfrei
« Posted 2013-07-19 08:09:03 »

I am totally unclear on the etiquette here. I wanted to announce some significant improvements to SiVi (etiquette issue #1) and when attempting to "reply" on the original thread got a message "are you sure...its been 60 days" that kind of thing (etiquette issue #2--should I have stayed on original thread?).

Purpose of tool: allows one to experiment with creating 2D Simplex Noise textures, giving user access to parameters that can be used procedurally, or to generate actual graphics for use.

jar can be downloaded and run from
or tool can be run online via

If you download and run the jar, it is possible to save jpg/gif/png files of the graphics that are generated by the tool. I didn't put in all the permissions hoo-ha for Applets.

There is a "Gallery" (menubar: View/Gallery). On it are a dozen or so templates of various graphics that can be used as starting points. I hope to add to this now and then.

I chucked my "tutorial" effort. I may be prone to overlong posts, but that doesn't make one a good author. Sad

Anyway, I think the tool is easier to use via "discovery" now, especially with the help of the gallery templates.

Current features:
+ specifiable number of octaves, all accessible in their own scrollbar
+ three "gradients" that can be modulated by the noise (1) linear, (2) radial, (3) sinusoidal--but just on the X-axis currently
+ color map tool, up to 10 "pegs" and optional HSB color space, with slots for "scratch" colors
+ can specify if color mapping is "clamped" (use of min and max values) or "ringed" (can cycle through multiple times) if values fall out of range

wish list:
more gradients, improved "sinusoidal" gradient gui
ability to specify "perspective effects" via gui
ability to generate animation sequences & animated gifs

music and music apps:
Offline Longor1996

JGO Wizard

Medals: 115
Projects: 2
Exp: 8 years

The cake is probably a lie.

« Reply #1 - Posted 2013-07-19 11:39:00 »

Thats a nice tool.
But I miss the code-generator.
My own simplex-noise generator is missing the |v| function.

Also a very bad bug:
Typing anything into the many text/number-fields doesn't do anything.
That counts for each and every field in the whole application.
I think you should fix that.

Edit: I just needed to press enter. Why do I always forget to press enter?!

- Longor1996

The cake is probably a lie... but it's a delicious lie!
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