tilemap_render — GFX2D tile op

• Data kinds: sprites → rgba

• Call: import gfx2d; gfx2d.tilemap_render(tiles, indices, empty=-1) (or opsgfx2d.get("tilemap_render"))

Usage

Paint a grid of tile indices into one `rgba` image.

`tiles is a list of equally sized rgba` tiles (what

:func:sprite_sheet_slice returns) or an `(N, th, tw, 4)` array.

`indices is a 2-D **integer** array; a cell equal to empty` is left

transparent. The result is `(rows*th, cols*tw, 4)`.

Every cell is a copy, not a resample, so the output equals the tile exactly.

Raises ValueError: a float index array (a float "index" is a rounding waiting

to happen), an index outside the tile set, tiles of differing shapes, an

output past :data:MAX_PIXELS.

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• gfx2d_scene — py -3.11 examples/gfx2d_scene.py

Ops the type connects to (they accept rgba as input)

premultiply · alpha_composite · sprite_blit · sprite_transform · sprite_sheet_slice · nine_slice

Same category (tile)

parallax_layers

*Provenance: gfx2d.py — GFX2D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.