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Squashed 'test/' content from commit f2edc20

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git-subtree-dir: test
git-subtree-split: f2edc20cba865a6ef67ca807c2ed6cee8e6c2836
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giles
2026-02-24 23:10:04 +00:00
commit c590f2e039
105 changed files with 19968 additions and 0 deletions
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19
sexp_effects/effects/ripple.sexp Normal file
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;; Ripple effect - radial wave distortion from center
(require-primitives "geometry" "image" "math")
(define-effect ripple
:params (
(frequency :type int :default 5 :range [1 20])
(amplitude :type int :default 10 :range [0 50])
(center_x :type float :default 0.5 :range [0 1])
(center_y :type float :default 0.5 :range [0 1])
(decay :type int :default 1 :range [0 5])
(speed :type int :default 1 :range [0 10])
)
(let* ((w (image:width frame))
(h (image:height frame))
(cx (* w center_x))
(cy (* h center_y))
(phase (* (or t 0) speed 2 pi))
(coords (geometry:ripple-displace w h frequency amplitude cx cy decay phase)))
(geometry:remap frame (geometry:coords-x coords) (geometry:coords-y coords))))