CustomRenderRule

Example:

let filterRule =new   Cesium.CustomRenderRule({
   customFunction:`
   void computenewproperty(FragmentInput fsInput, inout czm_modelMaterial material,inout bool selected){//selected是经过多层条件筛选后的结果
     float newProperty = (fsInput.metadata.pro1[3]+fsInput.metadata.pro1[2]);
     if(newProperty>0.0&&newProperty<20.0)
     {
       material.diffuse = vec3(1.0,0.0,0.0);
       material.alpha =0.8;
     }
     else if(newProperty>=20.0&&newProperty<40.0)
     {
       material.diffuse =1.0;
       material.alpha = 0.6;
     }
     else
     {
       material.diffuse = vec3(0.0,0.0,1.0);
       material.alpha = 0.3;
     }
   }
   `,
   customFunctionName:"computenewproperty",
 });