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>
70 lines
2.6 KiB
Common Lisp
70 lines
2.6 KiB
Common Lisp
;; ASCII with Alternating Effects - Checkerboard of blur and RGB split
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;;
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;; Demonstrates using existing sexp effects within cell_effect lambdas.
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;; Even cells get blur, odd cells get RGB split - creating a checkerboard pattern.
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(recipe "ascii_alternating_fx"
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:version "1.0"
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:description "ASCII art with alternating blur and RGB split effects per cell"
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:encoding (:codec "libx264" :crf 20 :preset "medium" :audio-codec "aac" :fps 30)
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:params (
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(cols :type int :default 40 :range [20 100]
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:desc "Number of character columns")
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(blur_amount :type float :default 3 :range [1 10]
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:desc "Blur radius for blur cells")
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(rgb_offset :type int :default 3 :range [1 10]
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:desc "RGB split offset for split cells")
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)
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;; Registry
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(effect ascii_fx_zone :path "../sexp_effects/effects/ascii_fx_zone.sexp")
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(analyzer energy :path "../../artdag-analyzers/energy/analyzer.py")
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;; Source files
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(def video (source :path "../monday.webm"))
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(def audio (source :path "../dizzy.mp3"))
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;; Stage 1: Analysis
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(stage :analyze
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:outputs [energy-data]
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(def audio-clip (-> audio (segment :start 60 :duration 10)))
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(def energy-data (-> audio-clip (analyze energy))))
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;; Stage 2: Process - apply effect with alternating cell effects
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(stage :process
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:requires [:analyze]
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:inputs [energy-data]
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:outputs [result audio-clip]
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(def clip (-> video (segment :start 0 :duration 10)))
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(def audio-clip (-> audio (segment :start 60 :duration 10)))
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;; Apply effect with cell_effect lambda
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;; Checkerboard: (row + col) even = blur, odd = rgb_split
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(def result (-> clip
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(effect ascii_fx_zone
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:cols cols
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:char_size (bind energy-data values :range [12 24])
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:color_mode "color"
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:background "black"
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;; Pass params to zone dict
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:energy (bind energy-data values :range [0 1])
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:blur_amount blur_amount
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:rgb_offset rgb_offset
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;; Cell effect: alternate between blur and rgb_split
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;; Uses existing sexp effects - each cell is just a small frame
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:cell_effect (lambda [cell zone]
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(if (= (mod (+ (get zone "row") (get zone "col")) 2) 0)
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;; Even cells: blur scaled by energy
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(blur cell (* (get zone "blur_amount") (get zone "energy")))
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;; Odd cells: rgb split scaled by energy
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(rgb_split cell
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(* (get zone "rgb_offset") (get zone "energy"))
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0)))))))
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;; Stage 3: Output
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(stage :output
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:requires [:process]
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:inputs [result audio-clip]
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(mux result audio-clip)))
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