crunchitize

About

Crunchitize is a tool to assist in making Crunch compressed DXT textures. It currently converts PNG images, and by default makes them pre-multiplied to be friendly to pixi.js. If it finds a .json file with the same name as a converted .png, it also modifies that json file's meta.image property to point at the new texture file instead of the (assumed) png. Crunchitize currently does not modify image sizes, so your input images must be valid Power of Two images.

Usage:

-f, --files  Glob path or path to .txt file list of glob paths to .pngs to process.
-q, --quality  Quality of crunch output, 0-1. Default is 0.5.
-pm, --premultiplied  If the input pngs should be converted to premultiplied alpha images first. Default is true.
--format  'crn' for .crn, or 'dds' for .dds. Default is 'crn'.
-d, --deleteInput  If the input pngs should be deleted after being converted. Default is false.

Convert a single file

crunchitize -f path/to/my.png

Convert all .pngs in a folder, at max quality

crunchitize -f path/to/folder/ -q 1

Convert all .pngs in a folder to dds

crunchitize -f path/to/folder/ --format dds

Convert all listed images at varying qualities

list.txt:

path/to/my.png 0.8
path/to/other.png 0.3

shell:

crunchitize -f path/to/list.txt

Executables for the crunch compression itself are taken from https://github.com/BKcore/crunch-osx.