Is your feature request related to a problem? Please describe.
It is always hard trying to find out the raw materials needed for a big project

Describe the solution you'd like
Add a feature to Litematica where it shows all the required raw materials needed for the build and not only the blocks

Describe alternatives you've considered
Just calculating the raw materials needed an typing it somewhere else but this would be a nice quality of life feature.

Additional context
None

What exactly are you referring to here? The initial ingredients for all the crafting recipes required to produce the final material list, or what? That is something I've considered adding, but not sure if it will get added, since it brings lots of complexity in trying to decide or define which "recipe paths" to take. For example simply to craft pistons, you could use several different types of planks, and those then require different types of logs.

Another thing is entities within the schematic (such as placed minecarts), and those are definitely planned to get added. Items within inventories also may get added, but that has other issues with the ability to get the current state of inventories...