;; Emboss effect - 3D raised surface look
;; Usage: python3 plan.py effects/emboss.sexp -p strength=1.5 | python3 execute.py - -d . -o output.mp4
;;
;; Parameters:
;;   strength: emboss intensity (0.5 to 3.0, default: 1.5)

(recipe "emboss"
  :version "1.0"
  :encoding (:codec "libx264" :crf 20 :preset "medium" :audio-codec "aac" :fps 30)

  (effect emboss :path "sexp_effects/effects/emboss.sexp")

  ;; Default parameter (overridden by -p strength=N)
  (def strength 1.5)

  (def video (source :path "monday.webm"))
  (def clip (-> video (segment :start 0 :duration 10)))
  (def result (-> clip (effect emboss :strength strength)))
  result)