Post #4326487

Drawings in @exsto can contain hundreds of thousands of strokes, so re-rendering during pan, zoom and rotation can struggle to keep up. I wrote about how we keep the canvas responsive: reproject the latest GPU state, render an update with Metal, then correct it again if the gesture moved while the GPU was working. https://nilcoalescing.com/blog/KeepingCanvasInteractionsResponsiveWithFrameReprojection/ #iOSDev #AppleMetal