| { |
| "id": "single-software-execution--cli--blender--task-34--ubuntu", |
| "snapshot": "Blender-4.2.3", |
| "instruction": "glTF 2.0 roundtrip with PBR materials `/home/user/Desktop/ch.blend` contains a simple character scene: three mesh objects (`Body`, `Head`, `Arms`) each with its own Principled BSDF material. Launch Blender by running `blender` from a terminal. For this task, use `/opt/blender/blender` for Blender command-line or background runs when working on `ch.blend`.\n\nThe scene also has a camera and a point light. Export the whole scene to binary glTF 2.0 (GLB) at `/home/user/Desktop/output/character.glb`, then re-import that GLB into a fresh Blender scene and save the result as `/home/user/Desktop/output/verify.blend`. Both output files must be produced. ## Requirements 1. `/home/user/Desktop/answer.blend` exists and opens in Blender. 2. `answer.blend` (the original scene) has the three expected Principled BSDF materials (`Mat_Body`, `Mat_Head`, `Mat_Arms`) with Base Colors (0.2, 0.3, 0.6) / (0.85, 0.7, 0.6) / (0.2, 0.3, 0.6) respectively (tolerance 0.05 per channel). 3. `/home/user/Desktop/output/character.glb` exists and is readable. 4. The GLB has a valid header: first 4 bytes = `b'glTF'`, version (LE uint32) = 2, length (LE uint32) equals the file size, and the first chunk is a JSON chunk followed optionally by a BIN chunk. 5. The JSON chunk parses as a glTF document with a `materials` array containing at least three entries, including entries named `Mat_Body`, `Mat_Head`, `Mat_Arms`. 6. For each of those three materials, `pbrMetallicRoughness.baseColorFactor` (RGB) matches the original Principled BSDF Base Color within 0.05 per channel. 7. `/home/user/Desktop/output/verify.blend` exists and opens in Blender. 8. The re-imported `verify.blend` contains at least three materials with a Principled BSDF node whose Base Color matches each of the three expected values within 0.05 per channel (material name may be a substring match to allow for importer-added `.001` suffixes).", |
| "source": "https://docs.blender.org/manual/en/4.1/; https://docs.blender.org/api/4.1/; https://developer.blender.org/docs/release_notes/4.1/; https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html; https://www.loc.gov/preservation/digital/formats/fdd/fdd000507.shtml", |
| "config": [ |
| { |
| "type": "upload_file", |
| "parameters": { |
| "files": [ |
| { |
| "local_path": "task-34/init_file/ch.blend", |
| "path": "/home/user/Desktop/ch.blend" |
| } |
| ] |
| } |
| } |
| ], |
| "trajectory": "trajectories/", |
| "related_apps": [ |
| "blender" |
| ], |
| "artifact_paths": [ |
| "/home/user/Desktop/answer.blend", |
| "/home/user/Desktop/output/character.glb", |
| "/home/user/Desktop/output/verify.blend" |
| ], |
| "evaluator": { |
| "postconfig": [ |
| { |
| "type": "upload_file", |
| "parameters": { |
| "files": [ |
| { |
| "local_path": "task-34/eval.py", |
| "path": "/home/user/Desktop/eval.py" |
| } |
| ] |
| } |
| } |
| ], |
| "func": "exact_match", |
| "result": { |
| "type": "vm_command_line", |
| "command": "python3 /home/user/Desktop/eval.py", |
| "shell": "true" |
| }, |
| "expected": { |
| "type": "rule", |
| "rules": { |
| "expected": "True\n" |
| } |
| } |
| }, |
| "proxy": false, |
| "fixed_ip": false, |
| "possibility_of_env_change": "low" |
| } |
|
|
