Threading Architecture

To reduce the performance impact on your application, all the heavy lifting is moved onto background threads. The main thread does do a bit of work when context.Update() is invoked, but you shouldn't notice any stutters or FPS drops.

The 'heavy' work that runs on background threads includes:

• Preparation - calculating a bounding volume hierarchy (BVH) for faster raytracing, resizing/allocating memory, applying settings changes
• Raytracing - building trails, casting occlusion/reverb/permeation/visualisation rays (see Trail-Based Raytracing)
• Analysis - calculating reverb and occlusion properties

The flow is:

• 1 background thread runs the Preparation task
• Then, N threads run all Raytracing tasks
• Then 1 background thread runs the Analysis task