d574d5badd
- Add primitive_libs/ with modular primitive loading (core, math, image, color, color_ops, filters, geometry, drawing, blending, arrays, ascii) - Effects now explicitly declare dependencies via (require-primitives "...") - Convert ascii-fx-zone from hardcoded special form to loadable primitive - Add _is_symbol/_is_keyword helpers for duck typing to support both sexp_effects.parser.Symbol and artdag.sexp.parser.Symbol classes - Auto-inject _interp and _env for primitives that need them - Remove silent error swallowing in cell_effect evaluation Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
13 lines
362 B
Common Lisp
13 lines
362 B
Common Lisp
;; Hue shift effect - rotates hue values
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;; Uses vectorized shift-hsv primitive for fast processing
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(require-primitives "color_ops")
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(define-effect hue_shift
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:params (
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(degrees :type int :default 0 :range [0 360])
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(speed :type int :default 0 :desc "rotation per second")
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)
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(let ((shift (+ degrees (* speed t))))
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(shift-hsv frame shift 1 1)))
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