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>
24 lines
870 B
Common Lisp
24 lines
870 B
Common Lisp
;; Outline effect - shows only edges
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(define-effect outline
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:params (
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(thickness :type int :default 2 :range [1 10])
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(threshold :type int :default 100 :range [20 300])
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(color :type list :default (list 0 0 0)
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)
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(fill_mode "original"))
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(let* ((edge-img (edges frame (/ threshold 2) threshold))
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(dilated (if (> thickness 1)
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(dilate edge-img thickness)
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edge-img))
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(base (cond
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((= fill_mode "original") (copy frame))
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((= fill_mode "white") (make-image (width frame) (height frame) (list 255 255 255)))
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(else (make-image (width frame) (height frame) (list 0 0 0))))))
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(map-pixels base
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(lambda (x y c)
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(let ((edge-val (luminance (pixel dilated x y))))
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(if (> edge-val 128)
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color
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c))))))
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