Material Spreadsheet Editor brings Excel-style spreadsheet workflow to Unreal Engine
Material Instances. Edit dozens or hundreds of Material Instances at once with multi-cell
selection, formula input, and live scene preview — without losing your originals.
Built for environment artists, look-dev artists, technical artists, and cinematic teams
who work with large material libraries.
Key capabilities:
- Spreadsheet UI — pinned metadata columns, fixed-width parameter columns,
horizontal scrolling, hover feedback, grid lines, and alternating row colors
- Multi-cell editing — Excel/Google Sheets click pattern. Single-click selects,
Shift+click for range, Ctrl+click for additive, double-click or Enter/F2 to edit.
One value applies to all selected same-kind cells.
- Three parameter types — Scalar (with formula input like =2*0.4), Vector/Color
(with native color picker and live preview), and Texture (with thumbnail and
Unreal-style object picker).
- Edit-as-Copies safety — recommended workflow that creates editable copy assets
with a configurable suffix (default _Edit) instead of modifying originals.
Existing copies are detected and updated directly to prevent stacked EditEdit names.
- Live Preview in Scene — preview spreadsheet changes in the viewport before Apply.
Uses transient preview Material Instances so original assets are never modified
for preview.
- Parent material grouping — collapse and expand by parent material. Auto Collapse
closes other groups for compact viewing. Hide Empty Columns removes parameter
columns with no data in the visible rows.
- Production workflow — Apply for in-memory changes, Apply & Save to write to disk,
Revert to discard, Refresh to re-read values, CSV export for data backup.
- Undo/Redo — full editor transaction support.
The plugin is editor-only and does not modify Material assets.