edit 14/08/2022 : i dont recommend this video anymore. its just not good. you should follow this tutorial instead https://gtaforums.com/topic/273217-3dsmax-radiosity-advanced-lighting/ and its actually the one i followed to make this video xdd silly me haha tutorial tutorial tutorial tutorial READ ME IF YOU WANT TO MAKE NIGHT RADIOSITY basically you will understand how to render radiosity and automatically generate vertex colors either in day or night this tutorial only covered day for night just set the sun color to 10-20 and sky color to 15-25 and also give them a little bit of blue color and you can also add omni lights and render them with it and it works!! AND DONT FORGET WHEN YOU ASSIGN VERTEX COLORS CHOOSE vertex illum BECAUSE ILLUM = NIGHT COLOR = DAY