I tried putting volume scatter and other nodes into the volume output in the node tree of a monkey but it creates a cube of volume around that monkey, how can I make it so it's like a monkey shaped cloud. Using Blender 2.83
1 Answer
If you're using Eevee, volumetrics nodes won't work as they work for Cycles, they will be shaped into cubes.
Since 2.91, though, you can create a volume empty (shiftA > Volume > Empty), and give it a Mesh to Volume modifier, with your object (here, your monkey) as Target. It will create a smoke that follows the shape of the Target:
Make your Suzane invisible. You can give your empty a material, by default it will be a Principled Volume plugged into the Volume socket of the Material Output. You can change the color or density of the volume:
Also, play with the parameters of the Render > Volumetrics panel, as it affects the quality of the volume: