New Visual Effects

[ruler501]

I added a basic heatmap like plugin and a music visualizer plugin. The heatmap is platform independent, but the visualizer relies on libpulse-simple(included by default with a pulse install as far as I know). Any way to get audio data in 16bit(short) signed format could be used though(I was tempted to try out SDL, but thought that would be a little too bloated).

The heatmap keeps track of how many times you press a key and the more times you press it the farther up the gradient it goes. It slowly fades out over time if you are not pressing it. It has an option to specify how many frames(30fps is hard coded) it should take to fade per key press and how many key presses to max brightness this looks good with dark blue to bright red. It also has an option where it will stay on for as long as normal(according to the frames to fade setting), but will randomly choose a color from the gradient which looks good with the default rainbow.

The music visualizer reads from your music stream, performs a fast fourier transform and figures out the magnitude per frequency(power if that option is enabled) and assigns it to keys on a log scale with mixing. Almost completely uncustomizable except for the color gradient and power vs magnitude for now. Looks good coming from black to bright(yellow, white and baby blue(192, 255, 255) tested), rainbow(non-looping), and blue to red.

If there is anything I need to add to make more compliant with standard and the like I'll put it in. It also needs a way to only compile in ckb-mviz if it is on a system with pulse. I don't know enough about qmake to implement it.

[ccMSC]

pkg-config would probably be a good place to start. For now I've merged it into a new branch: https://github.com/ccMSC/ckb/tree/newfx

Will bring into testing once I've gotten it to compile on systems without Pulse.

[ruler501]

I don't see a way to make it work without adding a new dependency on OS X. I believe there is a way to do it with OpenAL(which could fall back to OpenAL-Soft worst case) and that should be reasonably common on gaming systems which I feel this is more aimed at. I could also do it with PortAudio which is much smaller, but to the best of my knowledge much less standard. You could also bundle mviz into a separate repo for extra plugins where it is understood they might have extra dependencies. I think that integrating PortAudio would probably be the best solution there, but it's up to you.

[ccMSC]

My thought is to disable building it entirely if Pulse isn't available. I'm sure that CoreAudio (the OSX standard) has equivalent functionality, which could be implemented at a later time.

[gil--]

How would I manually build & get this to work on osx? Really want to try out a visualizer with the keyboard on mac.

[grounded042]

@gil-- I would assume that if you clone and then checkout the newfx branch you could follow the instructions in the README for getting it to work.

[mattanger]

We've got a new fork if anyone is interested submitting pull requests or contributing. https://github.com/mattanger/ckb-next On Jan 4, 2017 6:55 PM, "kpande" <[email protected]> wrote: is there no interest in merging this? it seems useful to me — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#127 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AFM7GkqQeHux2Rn1wYBEP74FQ8X_419lks5rPDFpgaJpZM4GEK_d> .

[mattanger]

Because this project has been abandoned. On Jan 5, 2017 11:07 PM, "kpande" <[email protected]> wrote: uhm.. why fork? I'm using what's included in gentoo portage (this source). — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#127 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AFM7Gu8AtcA_K4GuPEmeGJokcEW_-MGyks5rPb3-gaJpZM4GEK_d> .