Frame Time Math: A Renovation Budget for Your Render Loop
When I first heard someone compare frame time math to budgeting for a house renovation, I laughed. Then I spent a week staring at a frame time graph that looked like a heartbeat monitor on caffeine, and the metaphor clicked. You have a fixed budget—16.6 milliseconds per frame if you want 60 fps—and every system in your engine is a contractor billing you against it. You wouldn't hire a plumber who charges you double without telling you, and you shouldn't let a shader run wild either. This article is about that budgeting mindset. You'll learn to measure your frame time, allocate it like a monthly expense sheet, and cut the line items that don't benefit your users. We're using the renovation analogy because it keeps the math human. You don't need to be a math whiz—you just need to know where your money goes.