Effects node
Convolve
Runs a custom 3×3 grid of numbers over every pixel and its neighbors, letting you dial in blur, sharpen, edge, or emboss-style looks from nine kernel values.
What it does
Convolve is an image effect: it changes the picture that flows through it. It takes picture in and gives picture out.
Inputs and outputs
Inputs
- picture input
Outputs
- picture out
Controls
Every control with a range can be driven by a modulator, a note, an audio level or a sketch.
| Control | Range or options | Default |
|---|---|---|
| k11 | -8 to 8 | 0 |
| k12 | -8 to 8 | -1 |
| k13 | -8 to 8 | 0 |
| k21 | -8 to 8 | -1 |
| k22 | -8 to 8 | 5 |
| k23 | -8 to 8 | -1 |
| k31 | -8 to 8 | 0 |
| k32 | -8 to 8 | -1 |
| k33 | -8 to 8 | 0 |
| divisor | -16 to 16 | 1 |
| bias | -1 to 1 | 0 |
| spread | 0.5 to 8 | 1 |
| mix | 0 to 1 | 1 |
Example patch
This patch wires Convolve to what it needs and shows the result. Download it, then use File, Open in Infinite, or read it here: it is plain text.
infinite-patch 1
rev 2
# Convolve: a starting patch for the Convolve node
node 1 Effects convolve
id node
pos 520 300
end
node 2 Source Ramp
id in0
pos 0 300
end
node 3 Utility Output
id out
pos 1080 300
end
cable node 0 in0
cable out 0 node