code: function createDistanceAnimationMaterial(sourceMaterial) {
      return new DistanceAnimationMaterial({
        uniforms: sourceMaterial.uniforms,
        defines: sourceMaterial.defines,
        vertexFunctions: sourceMaterial.vertexFunctions,
        vertexParameters: sourceMaterial.vertexParameters,
        vertexInit: sourceMaterial.vertexInit,
        vertexPosition: sourceMaterial.vertexPosition
      });
    }
docs: Create a THREE.BAS.DistanceAnimationMaterial for shadows from a THREE.PointLight by copying relevant shader chunks.
  Uniform values must be manually synced between the source material and the distance material.
  
  @see {@link http://three-bas-examples.surge.sh/examples/shadows/}
  
  @param {THREE.BAS.BaseAnimationMaterial} sourceMaterial Instance to get the shader chunks from.
  @returns {THREE.BAS.DistanceAnimationMaterial}