blog: HQ case videos (1)

blog/roboarc-rope-threading-08-i01-standard--8sdpvcn/meta.json

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+{
+ "slug": "roboarc-rope-threading-08-i01-standard--8sdpvcn",
+ "status": "rendered",
+ "task": "roboarc-rope-threading-08-i01-standard",
+ "bench": "roboarc",
+ "mode": "standard",
+ "run": "claude_code-opus_5_5-high",
+ "outcome": "failed",
+ "card": "Claude Opus 5.5, standard, failed",
+ "source_trial": "claude_code/opus_5_5/high/claude_code-opus_5_5-high-roboarc-rope-threading-08-i01-standard/roboarc-rope-threading-08-i01-st__8sDPVcN",
+ "what": "re-rendered: kinematic playback of this trial's own replay (its 5,907 live rows replayed from the frozen instance with the task's own tooling, physics unchanged) in Blender Cycles, in the look of the suite's HQ masters (2026-10-14 RoboARC Cycles batch); the part meshes, camera rig and rope radius are the rope_threading_08 master's scene of the same frozen instance, every pose and the rope centreline come from this trial's replay",
+ "renderer": "Blender 4.5.3 LTS Cycles path tracing (GPU OptiX, RTX 4090), adaptive sampling (threshold 0.01, 64-128 spp), OpenImageDenoise with albedo + normal passes; RoboARC studio look of the suite masters: light-grey seamless floor at the table top (sRGB 0.56), no room / table, big soft key area light, overhead softbox, rim, dim sky dome (0.10); AgX Medium High Contrast, exposure -3.0; ALOHA matte black; the master's camera rig (az -80 deg, el 30 deg, 1.4x lens) with its gentle eased 10-degree orbit; 2560x1440, 30 fps, no text or overlays",
+ "rendering": "path-tracing",
+ "width": 2560,
+ "height": 1440,
+ "fps": 30,
+ "frames_rendered": 395,
+ "render_seconds": 1013.8,
+ "seconds_per_frame": 2.57,
+ "time_range": {
+  "from_row": 0,
+  "to_row": 5907,
+  "sim_t_from_s": 0.0,
+  "sim_t_to_s": 236.28,
+  "why": "the whole live episode (one episode, standard mode, ended by the 3 h wall-clock limit): 5,907 control rows at 25 Hz, from the frozen start to the final state the verdict was taken on"
+ },
+ "speed": 18.0,
+ "speed_note": "uniform 18x time-lapse (236.28 s of simulation in 394 frame intervals at 30 fps = 17.99x; every frame shows the exact replay state of row round(i*5907/394), no interpolation)",
+ "holds": {
+  "start_s": 0.5,
+  "end_s": 1.5,
+  "note": "first/last frame held, no extra simulation"
+ },
+ "replay_check": {
+  "reproduced": true,
+  "how": "fresh-process replay of the live rows (verifier/trajectory.npz, episode.json live_rows 5907, the tick ledger) from the frozen instance (eai-roboarc 0.2.0, the task's environment/sim tooling, rcb_topogym.Session strict, as the task's replay.py); final state hash and status compared with the live record and the sidecar's video replay",
+  "recorded": {
+   "success": false,
+   "live_sha": "4abccd2121c533cf",
+   "reason": "timeout",
+   "progress": 0.0,
+   "sim_steps": 5907
+  },
+  "replayed": {
+   "success": false,
+   "state_sha": "4abccd2121c533cf",
+   "progress": 0.0,
+   "sim_steps": 5907,
+   "sim_time_s": 236.28,
+   "birth_state_sha": "ea6c5405976dfa69"
+  },
+  "matches": {
+   "success": true,
+   "state_sha": true,
+   "steps": true
+  },
+  "sidecar_video_replay_sha": "4abccd2121c533cf",
+  "render_scene_checks": {
+   "lead_offsets_vs_master_slot_locals_max_abs": 7.089166936813385e-08,
+   "rope_birth_vs_master_birth_mm": 0.201,
+   "fixture_bodies_max_motion_m": 0.0
+  }
+ },
+ "camera": {
+  "mode": "the suite master's rig for rope_threading_08",
+  "az_deg": -80.0,
+  "el_deg": 30.0,
+  "lens_factor": 1.4,
+  "orbit_deg": 10.0
+ },
+ "render": {
+  "render_s_gpu_total": 1013.8,
+  "frames": 395,
+  "gpus": "6x RTX 4090 in parallel",
+  "blender": "4.5.3 LTS",
+  "device": "GPU OptiX",
+  "min_spp": 64,
+  "max_spp": 128,
+  "w": 2560,
+  "h": 1440
+ },
+ "encode": "master: libx264 preset slow CRF 16, yuv420p, bt709, 30 fps, +faststart, no audio",
+ "files": {
+  "video.mp4": {
+   "codec": "h264",
+   "profile": "High",
+   "pix_fmt": "yuv420p",
+   "width": 2560,
+   "height": 1440,
+   "fps": "30/1",
+   "frames": 455,
+   "duration_s": 15.167,
+   "bytes": 10256483,
+   "audio": false,
+   "faststart": true,
+   "sha256": "7b66a3f08f63d8e2b31a05830275dbb452771cd38faf34ae1d2339d5198b3400",
+   "note": "stream copy of the master (remuxed with +faststart)"
+  },
+  "web.mp4": {
+   "codec": "h264",
+   "profile": "High",
+   "pix_fmt": "yuv420p",
+   "width": 1920,
+   "height": 1080,
+   "fps": "30/1",
+   "frames": 455,
+   "duration_s": 15.167,
+   "bytes": 3514990,
+   "audio": false,
+   "faststart": true,
+   "crf": 20,
+   "sha256": "ab06fc557d2eeb70fd4c827b754bb56ea7df109d4030760e863ce49d0cda4cf3"
+  },
+  "poster.jpg": {
+   "bytes": 41794,
+   "size": "1280x720",
+   "from": "master frame at t=6.50 s",
+   "sha256": "a3b01547ca2f6feda18a83508b0c6794276821ca42aad6d54593853cc5160f1f"
+  }
+ }
+}

blog/roboarc-rope-threading-08-i01-standard--8sdpvcn/video.mp4

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