c64cast

Appendix F

Live-Tune Targets

The 29 parameters a MIDI knob, pad or web-console control can move while a show is running. Each names the target of a param action in [[midi_control.cc_map]]: the holder that heads its section, a dot, and the parameter. A knob sweeps a scalar or bucket-selects a choice; a pad steps a choice on.

Mapping One#

[[midi_control.cc_map]]
type = "cc"              # cc | note | pc
number = 13              # the controller number
action = "param"
target = "effect.decay"  # a heading and a row below

A target is only live while something that declares it is on screen — the Declared by column is that list. A knob on a target the running scene does not declare moves nothing, silently.

mode#

The display mode's color pipeline. A row's target is mode. and its name.

Parameter Kind Range or values Declared by
auto_fit_strength scalar 0 – 1 petscii, mcm, mhires
color_match choice rgb, perceptual petscii, mcm, hires, mhires
border choice black, white, red, cyan, purple, green, blue, yellow, orange, brown, light red, dark gray, gray, light green, light blue, light gray blank
background choice black, white, red, cyan, purple, green, blue, yellow, orange, brown, light red, dark gray, gray, light green, light blue, light gray blank
dither_strength scalar 0 – 2 mcm, hires, mhires
dither_method choice none, ordered, blue_noise, floyd-steinberg, atkinson mcm, hires, mhires
palette_mode choice percell, cheap, vivid, grayscale mcm, mhires
cell_pick choice error-min, sample hires
motion_smoothing scalar 0 – 1 mhires
cell_strategy choice frequency, luminance, contrast, error-min mhires

effect#

An effect in the scene's chain. A row's target is effect. and its name.

Parameter Kind Range or values Declared by
decay scalar 0 – 0.96 trails
intensity scalar 0 – 2.5 pulse, rgb_shift, blur
duty scalar 0.05 – 1 strobe
rate scalar 1 – 16 strobe
mix scalar 0 – 1 invert
axis choice horizontal, vertical, quad mirror
levels scalar 2 – 32 posterize

source#

A generative scene's generator. A row's target is source. and its name.

Parameter Kind Range or values Declared by
speed scalar 0 – 2 plasma, tunnel, epicycle, hiphotic, metaballs, rotozoomer, lissajous, dna, drift, colored_bursts, dotswarm, game_of_life, soap, fireworks
scale scalar 0.1 – 4 plasma, tunnel, hiphotic, rotozoomer, lissajous, dna, drift, colored_bursts, dotswarm, soap, fireworks
scroll_speed scalar 0 – 4 fire
intensity scalar 0.2 – 2 fire
zoom_speed scalar 0.02 – 1 mandelbrot
cycle_speed scalar 0 – 2 mandelbrot
ring_freq scalar 10 – 80 moire2
drift_speed scalar 0 – 2 moire2, halo, hopalong
pulse_speed scalar 0 – 3 halo
shape scalar -2 – 2 hopalong
grow_speed scalar 0 – 4 rorschach

scene#

The scene itself. A row's target is scene. and its name.

Parameter Kind Range or values Declared by
gain scalar 0.25 – 3 voice_scope

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