how to optimize 3D models so we can use them in mobile games with reduced drawcalls

Questions & Answers
1

Hi, Guys!
a) which kind of 3D models used for mobile games i.e that do not cause and effect on the performance of the game e.g high draw calls slow the game !
b) how can i optimize a normal 3D model that i can be used in mobile games
e.g)
i took some very small 3D models of buildings 1.5 mb in size and they gave me increment of 23 draw calls before including these building the draw calls of my games was 3 and after they become 36.

e.g) 2) i want to show some trees in my games and a couple of trees give me 20+ draw calls with this amount of draw calls i cant include more objects in my game.

what is the solution of this problem because i can not afford a designer that help me in 3D models!
I will be looking forward for your participation thanks in advance guys.
Tell me any possible solution i will be thankful !

2

Draw calls is nothing to do with the resolution of your 3d models (though it’s a good idea to keep your poly count low as well). To reduce draw calls:

  • Use batching
  • Don’t use too many different materials (use texture atlasing)
  • Use simple shaders, no shadows, not too many lights etc.

These are all explained at Unity - Manual: Graphics performance fundamentals

3

Hello,

How much poly ?

You can send me your 3d model, I can reduce the poly count.