What can I do to improve the frame rate in a scene which needs to render 1000+ objects at once?

[jamespaterson]

Good morning. This thread discusses gpu instancing where the goal is to change the main texture:

GPU Instancing with different textures?

I'm making use of GPU Instancing in my 2D game and it really reduces draw calls significantly when using the same Material and same sprite (texture) on all batched gameObjects. I'm changing colors using materialPropertyBlock and everything works fine. But is there a way to do that with different sprites (textures) on batched gameObjects' material? What if I used a Sprite atlas to gather all sprites together, will that make GPU Instancing possible with different sprites?

The long and the short of it is apparently gpu instancing doesn’t support changing textures, only material values such as colour or vectors.

The thread is quite relevant and discusses the use of texture arrays etc. This will require you to write a shader to support this, and code to build a texture array