sphere-vis

sphere-vis is a visualiser that displaces the vertices on a sphere in sync with the music/sounds.

Compiling

Build time dependencies

The current version of sphere-vis will compile and statically link glfw and portaudio, as such the following system packages are necessary:

• libX11 development files
• libXrandr development files
• libXinerama development files
• libXcursor development files
• libXi development files
• libGL (mesa) development files
• alsa library development files
• cmake
• make
• a C++17 compiler

install-dependencies-fedora.sh is a script that will install the dependencies mentioned above, for Fedora (tested only on Fedora 32).

How to build

git clone https://github.com/alexge50/sphere-vis
cd sphere-vis
git submodule update --init --recursive
mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=Release -G "Unix Makefiles" ..
cmake --build . --target sphere-vis
cmake --build . --target sphere-vis -- -j N # or use this for compiling on multiple threads, replace N with the number of threads that you want to use

After building is done a sphere-vis binary will become available - you can copy this into a convenient location.

Configuration

sphere-vis is looking for a configuration file located at ~/.config/sphere-vis/conf.toml or the config file can be passed as a parameter, as follows:

sphere-vis /path/to/config/file

Although untested, sphere-vis should work on Windows, and if the program is run on Windows, it expects to config file to be passed as an argument.

Config file

The config file format is TOML, and an example of the default settings can be found in default.toml.

[audio]
sample_rate=44100 # the sample rate at which the audio is sampled
frames_per_buffer=128 # how many samples should be processed at a time (lowering this number will increase "real-timeness", however the CPU usage as well)
amplify=1.0 # the audio data is multiplied by this number

[sphere]
rings=10 # number of rings (parallels) that the displayed sphere has
sectors=10 # number of sectors (medians) that the displayed sphere has

[colors]
background=[0, 0, 0] # the color of the background
foreground=[153, 50, 204] # the color of the sphere