Files
celery/sexp_effects/effects/crt.sexp
giles bb458aa924 Replace batch DAG system with streaming architecture
- Remove legacy_tasks.py, hybrid_state.py, render.py
- Remove old task modules (analyze, execute, execute_sexp, orchestrate)
- Add streaming interpreter from test repo
- Add sexp_effects with primitives and video effects
- Add streaming Celery task with CID-based asset resolution
- Support both CID and friendly name references for assets
- Add .dockerignore to prevent local clones from conflicting

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-02 19:10:11 +00:00

31 lines
1.1 KiB
Common Lisp

;; CRT effect - old monitor simulation
(require-primitives "image")
(define-effect crt
:params (
(line_spacing :type int :default 2 :range [1 10])
(line_opacity :type float :default 0.3 :range [0 1])
(vignette_amount :type float :default 0.2)
)
(let* ((w (image:width frame))
(h (image:height frame))
(cx (/ w 2))
(cy (/ h 2))
(max-dist (sqrt (+ (* cx cx) (* cy cy)))))
(map-pixels frame
(lambda (x y c)
(let* (;; Scanline darkening
(scanline-factor (if (= 0 (mod y line_spacing))
(- 1 line_opacity)
1))
;; Vignette
(dx (- x cx))
(dy (- y cy))
(dist (sqrt (+ (* dx dx) (* dy dy))))
(vignette-factor (- 1 (* (/ dist max-dist) vignette_amount)))
;; Combined
(factor (* scanline-factor vignette-factor)))
(rgb (* (red c) factor)
(* (green c) factor)
(* (blue c) factor)))))))