Files
test/sexp_effects/effects/kaleidoscope.sexp
gilesb 6ceaa37ab6 Add composable ASCII art with per-cell effects and explicit effect loading
Implements ascii_fx_zone effect that allows applying arbitrary sexp effects
to each character cell via cell_effect lambdas. Each cell is rendered as a
small image that effects can operate on.

Key changes:
- New ascii_fx_zone effect with cell_effect parameter for per-cell transforms
- Zone context (row, col, lum, sat, hue, etc.) available in cell_effect lambdas
- Effects are now loaded explicitly from recipe declarations, not auto-loaded
- Added effects_registry to plan for explicit effect dependency tracking
- Updated effect definition syntax across all sexp effects
- New run_staged.py for executing staged recipes
- Example recipes demonstrating alternating rotation and blur/rgb_split patterns

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-19 21:58:05 +00:00

20 lines
785 B
Common Lisp

;; Kaleidoscope effect - mandala-like symmetry patterns
(define-effect kaleidoscope
:params (
(segments :type int :default 6 :range [3 16])
(rotation :type int :default 0 :range [0 360])
(rotation_speed :type int :default 0 :range [-180 180])
(center_x :type float :default 0.5 :range [0 1])
(center_y :type float :default 0.5 :range [0 1])
(zoom :type int :default 1 :range [0.5 3])
)
(let* ((w (width frame))
(h (height frame))
(cx (* w center_x))
(cy (* h center_y))
;; Total rotation including time-based animation
(total_rot (+ rotation (* rotation_speed (or _time 0))))
(coords (kaleidoscope-displace w h segments total_rot cx cy zoom)))
(remap frame (coords-x coords) (coords-y coords))))