MrBrixican
commented
12 months ago - Reorganized vs solution to have a sample folder
- Renamed Batch.cs to Batcher.cs to be consistent with class name
- Changed vertex init from pointer/constructor to span/accessor
- I was surprised that the original pointer based rework didn't improve performance, but actually harmed it. So I did some digging and it seems that for some bizarre reason the Vertex struct constructor was really hurting performance (~30% penalty).
- Thus, I changed all of the vertex init code to use accessors instead.
- Also changed most vertex/index operations to use Spans as they're slightly more performant with constant indexes compared to pointer increments.
- Slightly controversial, I made it so untextured shapes do not set the vertex texture coordinates. The shader ignores it anyways so I figured it was wasted ops. Feel free to request me to zero them out if that bothers you.
- All of these changes have been tested via micro benchmarks using BenchmarkDotNet, hence why I left FlipVerticalUVs alone since it performs better than any span implementation I could come up with, haha.
- Bunnymark
- I really like that Foster gives you a high level API through Batcher and low level through Mesh/DrawCommand, so I thought it would be neat to show that off using a pretty well known (for better or worse, haha) demo.
- Batcher actually does a really solid job, so the only way I could beat it was by doing less (smaller vertex, one time index buffer allocation, etc).
- It includes a brief readme with my personal stats (pretty good for a small laptop), asset license information, and a disclaimer because some people obsess over weird benchmarks like this.
NoelFB