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; apply-waves-effect - Script-fu dodający efekt falowania
; author: PRP
; licencja: Public Domain
; Gdańsk - 25-02-2025
; ver. 1.250225-2
(define (przem-apply-waves-effect image drawable amplitude frequency phase)
(let* (
(width (car (gimp-image-width image)))
(height (car (gimp-image-height image)))
(new-image (car (gimp-image-duplicate image)))
(new-drawable (car (gimp-image-get-active-drawable new-image)))
(resize-y 0)
(resize-x 0)
(y 0)
(x 0)
(counter 0))
(gimp-selection-none new-image)
(gimp-context-push)
(gimp-context-set-defaults)
; symulacja
(while (< y height)
(while (< x width)
(set! resize-x (+ x (* amplitude (sin (+ (* frequency x) phase)))))
(set! resize-y (+ y (* amplitude (cos (+ (* frequency y) phase)))))
(set! x (+ x 1))
(set! counter (+ counter 1))
)
(set! x 0)
(set! y (+ y 1))
)
(gimp-image-scale new-image resize-x resize-y)
(set! new-drawable (car (gimp-image-get-active-drawable new-image)))
(set! x 0)
(set! y 0)
; Przejdź przez każdy piksel obrazu
(while (< y height)
(while (< x width)
(let* (
(new-x (+ x (* amplitude (sin (+ (* frequency x) phase)))))
(new-y (+ y (* amplitude (cos (+ (* frequency y) phase)))))
(color (car (gimp-image-pick-color image drawable x y FALSE FALSE 1)))
)
(gimp-context-set-foreground color)
;(gimp-brushes-refresh)
(gimp-context-set-brush "Circle (01)")
(gimp-context-set-brush-size 1)
(gimp-context-set-brush-angle 0.0)
(gimp-context-set-brush-hardness 1.0)
(gimp-context-set-opacity 100.0)
(gimp-pencil new-drawable 2 (vector new-x new-y)) ; Narysuj punkt
(gimp-message "Wait...")
;(display "pixel: ") (displayln pixel)
)
(set! x (+ x 1))
)
(set! x 0)
(set! y (+ y 1))
)
;(gimp-image-set-resolution image newdpi newdpi)
(gimp-context-pop)
(gimp-display-new new-image)
(gimp-selection-none new-image)
(gimp-displays-flush)
) )
(define displayln (lambda (obj) (display obj) (display "\n")))
(script-fu-register "przem-apply-waves-effect"
_"Apply a waves effect to the image."
_"Dodaje efekt fali do zdjęcia"
"Przenmysław R. Pietraszczyk"
"Public Domain"
"2025-02-25"
"RGB*, GRAY*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-VALUE "Amplitude" "10"
SF-VALUE "Frequency" "0.1"
SF-VALUE "Phase" "0"
)
(script-fu-menu-register "przem-apply-waves-effect" "<Image>/Filters/PIETRASZCZYK")
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