hacksalot / packrat

Flexible texture atlas creation tool.

packrat

A flexible, free, open-source texture atlas creation and packaging tool.

Features

• Generate game-ready texture atlases from multiple standalone source textures / tiles.
• Generate atlas-friendly mipmaps with periodic downsampling (no blurring between textures at higher mip levels).
• Downsample with your choice of bilinear, bicubic, nearest neighbor, etc.
• Scriptable and shell-ready for command-line builds and workflows.
• Supports Windows, OS X, Linux and other Mono-friendly platforms.
• Engine- and subsystem- agnostic; compatible with DirectX, OpenGL, Unity, Unreal, etc.

Planned

• Additional output formats including DDS and TIF.
• Exotic atlas variations including 4-tap textures and mirrored atlases.
• Texture adjustments include padding and half-texel correction.
• Non-regular textures with different sizes.
• Bin-packing of irregular textures.
• Better metadata support including .TAI files.

Use

From the shell:

packrat ATLAS FILES [OPTIONS]

Where ATLAS is the output atlas filename (without the extension), FILES is a wildcard or glob describing the texture files to pack, and OPTIONS describes any optional settings. For example:

# EXAMPLE 1
# Pack all PNGs in the /foo folder into a texture atlas
# 16 tiles across using default (bilinear) interpretation:
packrat myatlas foo/*.png -tx 16

# EXAMPLE 2
# Pack all JPEGs in the /foo folder into a texture atlas
# 32 tiles across using nearest-neighbor interpolation:
packrat myatlas foo/*.jpg -tx 32 -i nearestneighbor

# EXAMPLE 3
# As above, but enable silent mode (no console output):
packrat myatlas foo/*.png -s -tx 32 -i nearestneighbor

License

Licensed under MIT, have fun. Copyright © 2015 by gruebait | All rights reseved.