How to highlight a single 3d object from a model on click

Questions
#1

I have a roboter arm with six different parts. The model is a glb file. The names of the arms are K1 to K6.

With the help of this forum I succesfully implemented a raycaster to get the name of each part when clicking on it.

My Problem is that i want to highlight the part of the model which i last clicked but the effect gets applied to the whole model. What do i have to do to apply it only to K1 (in this case)

Grateful for every hint

[...] 
if (intersects.length > 0) {
      if(intersects[ 0 ].object.name == 'K1' ) {
          intersects[0].object.material.wireframe = true;                   
     }
     [...]
}
1 Like
#2

Hi, maybe this could be helpfull:

 if(intersects[ 0 ].object.name == 'K1' ) { 
          let mat = intersects[ 0 ].object.material.clone();
          mat.wireframe = true;
          intersects[ 0 ].object.material = mat        
     }

So better:

//befor function:
var mat_main  = scene.getObjectByName( 'K1').material.clone();
var mat_wire =  mat_main.clone();
mat_wire.wireframe = true;

//then inside function:
 if(intersects[ 0 ].object.name == 'K1' ) { 
      if(!intersects[ 0 ].object.material.wireframe){
            intersects[ 0 ].object.material = mat_wire;
       }else{
            intersects[ 0 ].object.material = mat_main;
      }     
 }
2 Likes
#3

@stanis3d thank you for your reply. I try your suggestion and get back to you if it worked or not. Have a nice day!

1 Like