text: import { SpriteNode } from './nodes/SpriteNode'
  import { NodeMaterial } from './NodeMaterial'
  import { NodeUtils } from '../core/NodeUtils'
  
  function SpriteNodeMaterial() {
    var node = new SpriteNode()
  
    NodeMaterial.call(this, node, node)
  
    this.type = 'SpriteNodeMaterial'
  }
  
  SpriteNodeMaterial.prototype = Object.create(NodeMaterial.prototype)
  SpriteNodeMaterial.prototype.constructor = SpriteNodeMaterial
  
  NodeUtils.addShortcuts(SpriteNodeMaterial.prototype, 'fragment', ['color', 'alpha', 'mask', 'position', 'spherical'])
  
  export { SpriteNodeMaterial }
  