simpletuo/JobSystem_IndirectInstancing_Testbed

Testbed project exploring the performance of Unity's Job System/Burst compiler combined with GPU mesh instancing.

Unity Job System & Indirect Instancing Testbed

Testbed project exploring the performance of Unity's Job System / Burst compiler combined with GPU mesh instancing (using the DrawMeshInstancedIndirect function, and passing Job System's NativeArrays directly to the shaders as ComputeBuffers).

Tested on Unity 2018.3.9.

Index

• Jobified Scripts
• Instanced Indirect Renderers
• Shaders

Modes

Currently 2 modes are explored:

• Particle Swarm
  524.288 Particles
  See it in action
• Animated Vector Field
  262.144 Vectors

Performance:

CPU: Intel i7 5930k, GPU: Nvidia GTX 970

Swarm:

524.288 Particles particles at 60-70 fps
1.048.576 Particles particles at 30 fps

Packages Used

• Unity.Jobs
• Unity.Collections
• Unity.Mathematics
• Unity.Burst
• Unity.PostProcessing

To Do

• [Particle Swarm] Implement spatial binning using the Concurrent NativeMultiHashMap collection.
• [Particle Swarm] Implement flocking / Boid behaviour.
• [Particle Swarm] Implement Unity's ECS (Entity Component System)