Level Of Detail ( LOD ) Workflow?


Hi, I’m looking for a better way of modeling my models with 3 different LODs plus 3 different states each. So basically I have 9 set of 1 model. It becomes a headache when I need to reduce the poly count of each of the 3 different states of a model and sometimes I forget where I have removed the loop or join up the loop/ vertices. Is there any tutorial/ way of working for LODs?

Thank You