I trying to reduce the draw calls in my project and in my in investigation I noticed that a sprite manager is taking 2 draw calls even if we have no sprite in its sprite list.
So just adding this line will cost you 2 draw calls :
var spriteManager = new BABYLON.SpriteManager("spm", "fakeurl", 1, 10, scene);
Is it a bug or there is a reason for this behavior ?
If no reason is possible to fix it in the next Babylon version ?