MIDI controls for a shader

Triangle Square Twist generates an image directly to Window:/. The patch uses score’s native ISF shader processing, not Qt Quick 3D, and needs no video or model file.

Connect and play

1. With playback stopped, right-click MIDI In, choose Edit and select your actual MIDI input. The saved default port may not exist on your machine.
2. Use Learn on that device and move your controls if their addresses are not present. Confirm values change in the Device explorer before starting playback.
3. Start playback and send channel 1 CC1: MIDI In:/1/control/1 controls zoom. Channel 1 pitch bend controls both rotate and amplitude.
4. Send note 36 on channel 10. Its note-on velocity at MIDI In:/10/on/36 controls triside1; this is a different channel from the wheel mappings.
5. Play a run of notes. Midi filter reads the whole MIDI In:/ stream and extracts note indices. Micromap divides by 127, then Exp Smoothing with Alpha 0.01 drives twist.

The direct port bindings use the device parameter domains; the twist branch demonstrates an explicit conversion and smoothing instead. To assign a different controller, drag its learned address onto the shader inlet or edit that inlet’s address. This example makes visuals only, even though it receives MIDI notes.

Download this example

Try this on web

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