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>
20 lines
640 B
Common Lisp
20 lines
640 B
Common Lisp
;; Trails effect - persistent motion trails
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(define-effect trails
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:params (
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(persistence :type float :default 0.8 :range [0 0.99])
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)
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(let* ((buffer (state-get 'buffer nil))
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(current frame))
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(if (= buffer nil)
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(begin
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(state-set 'buffer (copy frame))
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frame)
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(let* ((faded (blend-images buffer
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(make-image (width frame) (height frame) (list 0 0 0))
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(- 1 persistence)))
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(result (blend-mode faded current "lighten")))
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(begin
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(state-set 'buffer result)
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result)))))
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