NAME

       matc - filament material tools

DESCRIPTION

       matc is a command-line tool to compile material definition.  Usages:

              matc [options] <input-file>

   Supported input formats:
              Filament material definition (.mat)

OPTIONS

       --help, -h

              Print this message

       --license

              Print copyright and license information

       --output, -o

              Specify path to output file

       --platform, -p

              Shader family to generate: desktop, mobile or all (default)

       --optimize-size, -S

              Optimize generated shader code for size instead of just performance

       --api, -a

              Specify  the  target  API: opengl (default), vulkan, metal, or all This flag can be
              repeated to individually select APIs for inclusion:

              matc --api opengl --api metal ...

       --define, -D

              Add a preprocessor define macro via  <macro>=<value>.  <value>  defaults  to  1  if
              omitted.  Can be repeated to specify multiple definitions:

              matc -Dfoo=1 -Dbar -Dbuzz=100 ...

       --reflect, -r

              Reflect the specified metadata as JSON: parameters

       --variant-filter=<filter>, -V <filter>

              Filter out specified comma-separated variants:

              directionalLighting, dynamicLighting, shadowReceiver, skinning, vsm, fog

              This variant filter is merged with the filter from the material, if any

       --version, -v

              Print the material version number

   Internal use and debugging only:
       --optimize-none, -g

              Disable all shader optimizations, for debugging

       --preprocessor-only, -E

              Optimize shaders by running only the preprocessor

       --raw, -w

              Compile a raw GLSL shader into a SPIRV binary chunk

       --output-format, -f

              Specify output format: blob (default) or header

       --debug, -d

              Generate extra data for debugging

       --print, -t

              Print generated shaders for debugging