vec4(smoothstep(0.2,0.628,vUv.y));
        // gl_FragColor = vec4(vUv.y - 0.3 );
        // gl_FragColor = 1. - vec4(dot(normalize(vNormal),normalize(camPos)).r);
    }

`;

      let options = {
        exposure: 2.8,
        bloomStrength: 3.5,
        bloomRadius: 0.39,
        color0: [0, 0, 0],
        color1: [81, 14, 5],
        color2: [181, 156, 24],
        color3: [66, 66, 66],
        color4: [79, 79, 79],
        color5: [64, 27, 0],
      };

      // let options = {
      //   exposure: 2.8,
