drag the figure · 透視図法
""" OUTDIR = "/Users/bowang/.openclaw/workspace" FRAMES = os.path.join(OUTDIR, "_frames") OUTFILE = os.path.join(OUTDIR, "perspective-illusion-demo.mp4") os.makedirs(FRAMES, exist_ok=True) FPS = 30 DURATION = 8 # seconds N_FRAMES = FPS * DURATION async def main(): html_path = os.path.join(OUTDIR, "_persp_anim.html") with open(html_path, "w") as f: f.write(HTML) async with async_playwright() as p: browser = await p.chromium.launch() page = await browser.new_page(viewport={"width": 820, "height": 480}) await page.goto(f"file://{html_path}") await asyncio.sleep(0.3) # let it settle print(f"Capturing {N_FRAMES} frames at {FPS}fps ({DURATION}s)...") for i in range(N_FRAMES): await page.screenshot(path=os.path.join(FRAMES, f"frame_{i:04d}.png"), full_page=False) # Advance time by 1/fps via JS await page.evaluate(f"window.performance && document.dispatchEvent(new Event('_tick'))") await asyncio.sleep(1 / FPS) if i % 30 == 0: print(f" {i}/{N_FRAMES}") await browser.close() print("Encoding video with ffmpeg...") subprocess.run([ "ffmpeg", "-y", "-framerate", str(FPS), "-i", os.path.join(FRAMES, "frame_%04d.png"), "-vf", "scale=820:480", "-c:v", "libx264", "-pix_fmt", "yuv420p", "-crf", "18", "-preset", "fast", OUTFILE ], check=True) # Cleanup frames import shutil shutil.rmtree(FRAMES) os.remove(html_path) print(f"Done! → {OUTFILE}") asyncio.run(main())