MCSketch8K

MCSketch8K: Multi-Concept Scene Sketches with Executable Layout Programs

MCSketch8K contains 1000 scenes constructed from SketchDirector outputs. Each sample includes a scene description, raw object JSON, raw layout-program JSON, initial sketch in SVG and PNG, final sketch in SVG and PNG, and a grid-backed final PNG. The editable original scene files are in scenes/.

Dataset Statistics

MCSketch8K comprises 1,000 multi-concept scene sketches with over 8,00 object categories. Each scene provides structured object annotations and executable layout programs to support object-level scene composition and spatial reasoning.

Statistic	Value
Total Scenes	1,000
Vector Object Assets	4,000+
Object Categories	800+
Visual Representation	SVG / PNG
Layout Annotations	Executable Layout Programs

Scene Complexity Distribution

The dataset covers scene sketches with varying numbers of objects and spatial arrangements, ranging from simple compositions to complex multi-object scenes.

Object Distribution

MCSketch8K contains a diverse collection of vector objects, enabling the construction of scenes with different semantic concepts and spatial relationships.

Viewer columns

Each row represents a multi-concept scene sketch with its textual description, object-level annotations, executable layout program, and corresponding vector representations.

Column	Type	Description
scene_id	string	Unique scene identifier (e.g., "scene_0001"), assigned by alphabetical order of the original scene folders.
scene_description	string	Natural-language description specifying the objects and their spatial relationships within the scene.
objects_json	string (JSON)	Serialized object annotations containing object identifiers and initial spatial attributes, including positions on the layout grid.
layout_program_json	string (JSON)	Serialized executable layout program recording object-level manipulation operations (e.g., move, scale, rotate, layer) and their parameters during scene composition.
initial_sketch	Image	PNG rendering of the initial scene layout before executing the layout program.
final_sketch	Image	PNG rendering of the final scene composition after executing the layout program.
final_grid	Image	Grid-overlaid PNG rendering of the final scene, illustrating object placement within the spatial layout.
initial_svg	string (SVG)	Full SVG representation of the initial scene sketch, preserving editable vector geometry.
final_svg	string (SVG)	Full SVG representation of the final composed scene sketch, preserving editable vector geometry and object arrangement.
scene_path	string	Relative directory path (e.g., "scenes/scene_0001") containing the corresponding SVG, PNG, and JSON files.

Provenance and limitations

The dataset is generated using SketchDirector, with all scene descriptions generated by OpenAI GPT-5.5. It contains SketchDirector-generated sketches and layout traces, not human-drawn demonstrations.

Source publication

SketchDirector: Complex Sketching via Agentic Layout Reasoning and Detail Refinement.

Project: https://yiki77.github.io/SketchDirector/

Splits

All 1000 samples are currently in the train split for packaging only. No benchmark training/validation/test split is asserted.

License

Released under CC BY 4.0. You are free to share and adapt the data, provided you give appropriate credit — see the Citation section below.

Citation

If you use this dataset, please cite both the original SketchDirector paper (source of the sketches):

@misc{sketchdirector,
  title={SketchDirector: Complex Sketching via Agentic Layout Reasoning and Detail Refinement},
  note={Coming soon}
}