Three js ShaderMaterial





### shader line example
> [three.js](https://threejs.org/examples/?q=webgl_custom_attributes_lines#webgl_custom_attributes_lines)

> [mrdoob/three.js](https://github.com/mrdoob/three.js/blob/master/examples/webgl_custom_attributes_lines.html)

### shader examples
> [three.js](https://threejs.org/examples/?q=oc#webgl_postprocessing_dof)

> [three.js](https://threejs.org/examples/?q=bloom#webgl_postprocessing_unreal_bloom_selective)

> [mrdoob/three.js](https://github.com/mrdoob/three.js/blob/master/examples/webgl_interactive_points.html)





