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Reproduce jit.scope's waveform mode

February 28, 2010 | 3:11 pm

Hi there, I’m trying to reproduce jit.scope’s waveform mode
but I’m missing something on how to accumulate frames over time.

Can someone have a look at the patch below and give me hints ?



— Pasted Max Patch, click to expand. —
March 3, 2010 | 11:49 am

Hello, wath do you think abaout that, ther is just no accum.

— Pasted Max Patch, click to expand. —
March 3, 2010 | 12:13 pm

That’s a very good start,

now I’ll have to find how to reproduce the accum parameter of the jit.scope.
maybe with some alpha on the points ?

Merci Matthieu


April 2, 2010 | 2:34 am

Hello there,

I finally managed to reproduce almost exactly jit.scope’s waveform mode by reverse engineering it with little matrices.
The aim was to be able to output this waveform as a matrix and use for something else than just analysing.

I first made a lazy java prototype as I had no idea how to implement this in jitter directly without OpenGL (I still don’t).
Then I made my first jitter object in C.

java & c sources included.

Edit : the file attached was the developpement version, deployement version here :

August 19, 2015 | 3:01 am

Dear Leopold, dear Friends

From my perspective the [jit.wavescope] is extremely useful and I’m still using this external in some projects. Leopold, thanks for creating it.

I just updated original code a little bit (hope it’s not prohibited). Changes are rather "cosmetic", but important for my workflow, and maybe for others… So, I updated the source for latest SDK and 64bit (what was the main reason to dig into it) and tweaked routine to avoid "noisy" artefacts in produced image (especially when "accum" is set to relatively high values) – now [jit.wavescope] act even more like [jit.scope] (but you can use "legacy_mode 1" message to restore previous behavior).

Source, compiled external and help file are in attached ZIP. OSX only, but it should be simple port it for Windows.

Tested with Max 7.0.5 (64bit), OSX 10.10.5.

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