Files
celery/sexp_effects/effects/scanlines.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

16 lines
574 B
Common Lisp

;; Scanlines effect - VHS-style horizontal line shifting
(require-primitives "core")
(define-effect scanlines
:params (
(amplitude :type int :default 10 :range [0 100])
(frequency :type int :default 10 :range [1 100])
(randomness :type float :default 0.5 :range [0 1])
)
(map-rows frame
(lambda (y row)
(let* ((sine-shift (* amplitude (sin (/ (* y 6.28) (max 1 frequency)))))
(rand-shift (core:rand-range (- amplitude) amplitude))
(shift (floor (lerp sine-shift rand-shift randomness))))
(roll row shift 0)))))