setTexture() not working in PGraphics window

Processing Coding Questions
1

In my sketch, I have put my 3d rendering into a PGraphics object. But now, I have no way, whatsoever of drawing textures on PShape objects. The result is an invisible shape. Does anyone know what to do or has had this issue before?

I tried…

    model.setTexture(PImage);

 PShape face = new PShape();
      face = createShape();
      face.beginShape();
      face.textureMode(NORMAL);
      face.noStroke();
      face.texture(PImage); //<--------------------
      
      for (int v = 0; v < verts.length; v++) { //iterate through each vert
        String coords[] = split(verts[v], ",");
        String UVcoords[] = split(UVverts[v], ",");
        face.vertex(parseFloat(coords[0]), parseFloat(coords[1]), parseFloat(coords[2]), parseFloat(UVcoords[0]), 0-parseFloat(UVcoords[1]));
      }

      face.endShape(CLOSE);
      model.addChild(face);

 PShape face = new PShape();
      face = createShape();
      face.beginShape();
      face.textureMode(NORMAL);
      face.noStroke();
      PGraphicsObject.texture(PImage); //<--------------------
      
      for (int v = 0; v < verts.length; v++) { //iterate through each vert
        String coords[] = split(verts[v], ",");
        String UVcoords[] = split(UVverts[v], ",");
        face.vertex(parseFloat(coords[0]), parseFloat(coords[1]), parseFloat(coords[2]), parseFloat(UVcoords[0]), 0-parseFloat(UVcoords[1]));
      }

      face.endShape(CLOSE);
      model.addChild(face);

Nothing has worked.