import { MeshStandardMaterial } from 'three/src/materials/MeshStandardMaterial';
import { shader } from './shader';

export class MyMeshStandardMaterial extends MeshStandardMaterial {

  constructor(materialParameters, uniforms) {
    super(materialParameters);
    this.uniforms = uniforms;
  }

  onBeforeCompile = m_shader => {

    m_shader.uniforms.clippingLow = this.uniforms.clippingLow; // { type: "v3", value: new Vector3(0, 0, 0) };
    m_shader.uniforms.clippingHigh = this.uniforms.clippingHigh; // { type: "v3", value: new Vector3(0, 0, 0) };



    //     m_shader.vertexShader = `
    //     varying vec3 vPos;
    //     varying vec4 worldPosition;
    //   ${m_shader.vertexShader}
    // `.replace(
    //       `#include <fog_vertex>`,
    //       `#include <fog_vertex>
    //       worldPosition = modelMatrix * vec4( position, 1.0 );
    //       `
    //     );

    m_shader.vertexShader = shader.vertexMeshStandard;

    // m_shader.vertexShader = 'varying vec4 realPosition; ' + m_shader.vertexShader;
    // m_shader.vertexShader = m_shader.vertexShader.replace(
    //   `#include <fog_vertex>`,
    //   `#include <fog_vertex>
    //    realPosition = modelMatrix * vec4( position, 1.0 );`
    // );

    m_shader.fragmentShader = shader.fragmentClippingMeshStandard;

    //prepend the input to the shader
    // m_shader.fragmentShader = `
    //   uniform vec3 clippingLow;
    //   uniform vec3 clippingHigh;
    //   varying vec4 worldPosition;
    //   ${m_shader.fragmentShader}
    //   `.replace(
    //   `gl_FragColor = vec4( outgoingLight, diffuseColor.a );`,
    //   `
    //     if (
    //       worldPosition.x < clippingLow.x
    //      || worldPosition.x > clippingHigh.x
    //      || worldPosition.y < clippingLow.y
    //      || worldPosition.y > clippingHigh.y
    //      || worldPosition.z < clippingLow.z
    //      || worldPosition.z > clippingHigh.z
    //    ) {    
    //     discard;
    //   } else {       
    //     gl_FragColor = vec4( outgoingLight, diffuseColor.a );
    //   }
    //   `
    // );

  };
  
}