Lesson 271: Blender Diligence Hero GLB rclone Mirror Receipt on BUILD_RECEIPT (2026)

Direct answer: Before Q4 2026 partner diligence mirror week, promote blender_glb_mirror_receipt_v1.json with M1–M6 gates—pin gltf_export_preset_v1.json, export hero_diligence.glb once, sha256sum GLB + hero_glb_mirror_manifest.json, archive rclone copy --dry-run log, crosswalk team_drive_id to cousin diligence_mirror_receipt_v1, and fail-close blender_glb_mirror_ok on BUILD_RECEIPT before live mirror or partner zip. Pair diligence mirror preflight (Guide #33), Blender hero glTF diligence evening, and cousin Lesson 249 (playtest identity—not diligence mirror).

Why this matters now (Q4 diligence mirror week)

Q4 2026 funds audit release-evidence/diligence/03-art/hero/—not a WIP .blend or informal Dropbox link. Teams pass Lesson 264 archive_handoff_ok on Resolve bundles but still mirror a re-exported GLB whose checksum differs from the partner README. Nightly rclone copy multiplies whatever is on disk—garbage-in equals partner confusion-out.

Lesson 270 wires GameMaker setlive on BUILD_RECEIPT; 271 wires Blender diligence hero mirror so Thursday row review diffs a real 03-art/hero/ story beside 02-trailer/.

Beginner path (export → hash → dry-run → receipt)

Time: ~55 minutes first diligence sprint; ~15 minutes when preset and remote are pinned.

Developer path (gates M1–M6)

Align with Guide #33 preflight—guide = ninety-second gate; 271 = BUILD_RECEIPT milestone with promotion jq.

Cousin receipt crosswalk

Do not merge schemas—reference paths in cousin_receipts only.

M1 — Pin export preset

Archive tools/blender/gltf_export_preset_v1.json (cousin fields from Lesson 249):

{
  "format": "glb",
  "export_apply": true,
  "export_texcoords": true,
  "export_normals": true,
  "export_tangents": true,
  "export_materials": "EXPORT",
  "export_image_format": "AUTO",
  "export_draco_mesh_compression": false,
  "export_animations": true,
  "export_nla_strips": true,
  "export_def_bones": false
}

Freeze checklist (release-evidence/diligence/03-art/hero/EXPORT_FREEZE.md):

M2–M3 — Export + sha256 bundle

Blender File → Export → glTF 2.0 (.glb) → release-evidence/diligence/03-art/hero/hero_diligence.glb.

hero_glb_mirror_manifest.json:

{
  "schema": "hero_glb_mirror_manifest_v1",
  "character_id": "hero_combat",
  "build_label": "q4-diligence-2026-rc1",
  "gltf_path": "release-evidence/diligence/03-art/hero/hero_diligence.glb",
  "export_preset": "tools/blender/gltf_export_preset_v1.json",
  "vertex_count": 18432,
  "glb_bytes": 15728640,
  "draco": false,
  "cousin_receipts": {
    "gltf_export_hash_playtest": "release-evidence/art/GLTF_EXPORT_HASH_RECEIPT.json",
    "resolve_archive": "release-evidence/diligence/RESOLVE_ARCHIVE_RCLONE_RECEIPT.json",
    "diligence_mirror": "release-evidence/diligence/DILIGENCE_MIRROR_RECEIPT.json"
  }
}

cd release-evidence/diligence/03-art/hero
sha256sum hero_diligence.glb hero_glb_mirror_manifest.json | tee hero_glb_sha256.txt

M3 pass when manifest vertex_count matches Blender outliner after export.

M4 — rclone dry-run

DATE_TAG="$(date -u +%Y-%m-%d)"
rclone copy release-evidence/diligence/03-art/hero/ \
  "diligence_team:partner_mirror/${DATE_TAG}/03-art/hero/" \
  --dry-run --checksum \
  --include "hero_diligence.glb" --include "hero_glb_mirror_manifest.json" \
  -v 2>&1 | tee "logs/rclone_hero_glb_mirror_dry_run_${DATE_TAG}.log"

Fail-closed: no live copy until dry-run log archived and M4 GREEN.

M5 — Team Drive ID crosswalk

jq -e --arg id "$(jq -r .team_drive_id release-evidence/diligence/diligence_mirror_config_v1.json)" \
  '.team_drive_id == $id' release-evidence/diligence/DILIGENCE_MIRROR_RECEIPT.json

Pair jq rclone Team Drive ID sanity when cousin mirror receipt is stale.

M6 — blender_glb_mirror_receipt_v1.json

{
  "schema": "blender_glb_mirror_receipt_v1",
  "build_label": "q4-diligence-2026-rc1",
  "hero_glb_path": "release-evidence/diligence/03-art/hero/hero_diligence.glb",
  "manifest_path": "release-evidence/diligence/03-art/hero/hero_glb_mirror_manifest.json",
  "sha256_log": "release-evidence/diligence/03-art/hero/hero_glb_sha256.txt",
  "dry_run_log": "logs/rclone_hero_glb_mirror_dry_run_2026-11-04.log",
  "team_drive_id": "0ABC…xyz",
  "rclone_remote": "diligence_team",
  "cousin_receipts": {
    "diligence_mirror": "release-evidence/diligence/DILIGENCE_MIRROR_RECEIPT.json",
    "resolve_archive": "release-evidence/diligence/RESOLVE_ARCHIVE_RCLONE_RECEIPT.json",
    "gltf_export_hash_playtest": "release-evidence/art/GLTF_EXPORT_HASH_RECEIPT.json"
  },
  "gates": {
    "M1_export_preset": "pass",
    "M2_sha256_glb": "pass",
    "M3_manifest": "pass",
    "M4_dry_run": "pass",
    "M5_team_drive_crosswalk": "pass",
    "M6_receipt": "pass"
  },
  "blender_glb_mirror_ok": true,
  "mirror_job_allowed": false
}

Pin as release-evidence/diligence/BLENDER_GLB_MIRROR_RECEIPT.json. mirror_job_allowed on cousin diligence mirror receipt stays false until hero + Resolve cousins GREEN.

BUILD_RECEIPT columns (Q4 diligence lane)

Fail-closed jq (CI tail)

jq -e '.blender_glb_mirror_ok == true' release-evidence/diligence/BLENDER_GLB_MIRROR_RECEIPT.json
jq -e '.gates.M4_dry_run == "pass"' release-evidence/diligence/BLENDER_GLB_MIRROR_RECEIPT.json

Block live rclone copy on 03-art/hero/ unless both exit 0.

Key takeaways

1. Partners checksum 03-art/hero/—not trust-me email attachments.
2. Hash .glb + manifest, not .blend (M2/M3).
3. Dry-run before live mirror (M4)—pair evening tutorial blocks A–D for first path.
4. Guide #33 preflight owns ninety-second gate; 271 owns BUILD_RECEIPT promotion.
5. 12-free Blender hero GLB tools bookmark rclone + hash utilities.
6. Help #32 forward owns hash mismatch after live copy—271 stops bad bytes before copy.
7. Playtest hero drift is Lesson 249—do not substitute for diligence mirror.

Common mistakes

• Re-export after manifest without updating sha256 log.
• Live rclone copy without M4 dry-run log.
• Merging blender_glb_mirror_receipt_v1 into gltf_export_hash_receipt_v1.
• Hashing .blend instead of exported .glb.
• Wrong team_drive_id—hero on My Drive, Resolve on Team Drive (M5).
• Partner zip before archive_handoff_ok cousin when trailer ships same week.

Troubleshooting

Mini exercise (55 minutes)

1. Export without freeze note—observe hash drift (M1 fail).
2. Pass M2–M3 sha256 bundle.
3. Archive M4 dry-run log; verify M5 jq crosswalk.
4. File M6 receipt; BUILD_RECEIPT GREEN for blender_glb_mirror_ok.
5. Confirm cousin mirror_job_allowed still false until Resolve cousin GREEN.

Continuity — November 2026 fest close-out + playtest triage (266–276)

Previous: Lesson 270 — GameMaker Steam setlive branch dry-run receipt
Next: Lesson 272 — Ren'Py SteamPipe upload wall-clock receipt

FAQ

Same as evening tutorial?
Evening owns blocks A–D first path; 271 owns blender_glb_mirror_receipt_v1 BUILD_RECEIPT column + fail-closed jq.

Same as Guide #33?
Guide = ninety-second preflight; 271 = course milestone with cousin crosswalk + promotion jq.

Same as Lesson 249?
249 = playtest gltf_export_hash_receipt_v1; 271 = diligence blender_glb_mirror_receipt_v1 under 03-art/hero/.

Same as Lesson 264?
264 = Resolve archive archive_handoff_ok; 271 = hero GLB beside trailer in diligence tree.

Does this enable live mirror alone?
No—cousin mirror_job_allowed on diligence mirror receipt requires hero + Resolve cousins GREEN.

Does this replace jq mirror blog?
No—blog owns whole-tree diligence_mirror_receipt_v1; 271 owns hero subtree BUILD_RECEIPT column.

Partners audit checksums in 03-art/hero/—pin export, hash GLB + manifest, dry-run mirror, crosswalk Team Drive ID, then file receipt before live copy.