[Solved] what is draw call exactly

[XxNotAGamerxX]

@Killerzwerg

So, if I have a mesh with 1 material and 10 textures, it needs 11 drawcalls to render?
Would it be better to have one 8k texture which is holding all textures in one, while the single textures had only 2k?
Or would this be another problem because of video memory?

Anyone have an answer to this? I have modular meshes, some with 4 to 7 Material slots. My main body has like 8 Mat slots. And 1 to 6 modular mesh parts go over my main body.

So what is better for a game/player - have a lot of draw calls with the many mat slots?
Or combine the texture parts of items into a giant 8K texture > 1 Master Mat, but would still need 10 MIs (to use specific zones of the 8K texture). And this would cost the player more harddrive space + RAM to run.