6ceaa37ab6
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>
30 lines
1.5 KiB
Common Lisp
30 lines
1.5 KiB
Common Lisp
;; ASCII Zones effect - different character sets for different brightness zones
|
|
;; Dark areas use simple chars, mid uses standard, bright uses blocks
|
|
|
|
(define-effect ascii_zones
|
|
:params (
|
|
(char_size :type int :default 8 :range [4 32])
|
|
(dark_threshold :type int :default 80 :range [0 128])
|
|
(bright_threshold :type int :default 180 :range [128 255])
|
|
(color_mode :type string :default "color")
|
|
)
|
|
(let* ((sample (cell-sample frame char_size))
|
|
(colors (nth sample 0))
|
|
(luminances (nth sample 1))
|
|
;; Start with simple chars as base
|
|
(base-chars (luminance-to-chars luminances "simple" 1.2))
|
|
;; Map each cell to appropriate alphabet based on brightness zone
|
|
(zoned-chars (map-char-grid base-chars luminances
|
|
(lambda (r c ch lum)
|
|
(cond
|
|
;; Bright zones: use block characters
|
|
((> lum bright_threshold)
|
|
(alphabet-char "blocks" (floor (/ (- lum bright_threshold) 15))))
|
|
;; Dark zones: use simple sparse chars
|
|
((< lum dark_threshold)
|
|
(alphabet-char " .-" (floor (/ lum 30))))
|
|
;; Mid zones: use standard ASCII
|
|
(else
|
|
(alphabet-char "standard" (floor (/ lum 4)))))))))
|
|
(render-char-grid frame zoned-chars colors char_size color_mode (list 0 0 0))))
|