Design your own effects in Miditoy, use them in the app, build & share a collection of premade looks.
Start in Miditoy. Build a shader, tweak the controls, and preview it against real MIDI playback until the motion feels right.
Miditoy is the fastest way to dial in the final look because it already speaks the same visual language as Jamcorder.
Jamcorder stores effects as PNG files, with the first few rows of pixel data storing the effect itself. Here is an actual example:
That PNG is the effect! Tap to download it!
Open Jamcorder and load your effect in PNG or ZIP format. Your visuals react directly to the actual performance.
If you like working in Shadertoy, you can. Prototype there first, then bring the shader back into Miditoy for final tuning and export.
Jamcorder adds a few MIDI-specific uniforms. Use the shim to simulate them on Shadertoy when you want a closer preview.
uniform vec4 mtNotes[800]; // midi notes (start, duration, pitch, channel + velocity/128) uniform int mtNoteCount; // length of mtNotes uniform float mtTime; // position within song (seconds) uniform float mtTimeDelta; // position change since last frame (0 == paused) uniform float mtPps; // pixels per second (music speed)
Want to publish there too? Add the jamcorder tag so other people can find effects that work well with MIDI-driven visuals.
Send your effect to [email protected] with “VFX Submission:” in the subject line. The best effects will be featured in the app!