Threejs - Reference the material in the program

material_ref_in_program.js

const getMUIDIndex = (muid: string) => muid === 'muid'

el.material.defines = Object.assign(el.material.defines || {}, {
  muid: el.material.id
})
      
gl.info.programs?.forEach(program => {
  const cacheKeySplited = program.cacheKey.split(',')
  console.log(cacheKeySplited[cacheKeySplited.findIndex(getMUIDIndex) + 1]) // will get the material id in the program
});