SwiftUI: Render/Animate Geometries With Metal 4

A comprehensive guide to rendering and animating geometric shapes using Metal 4 in SwiftUI. Covers the fundamentals of Metal's rendering pipeline, including vertex and fragment shaders, command buffers, and render encoders. Demonstrates how to draw a simple line with gradient colors and add rotation animation by passing parameters to shaders. Includes detailed explanations of Metal framework classes, buffer management, and the complete workflow from vertex processing to screen presentation.