Part 1: Sourcing Parts
I’d be remiss if I didn’t quickly mention iPadOS 26, which arrived last fall. It runs on iPad Air models all the way back to 2019, so it’s not a reason alone to upgrade. But, it improved the multitasking experience on iPads to a significant degree. It still feels native to the iPad, but there are so many Mac-like flourishes that it’s a lot easier for me to use as my main computer now. That said, it really shines on larger-screen iPads; the 11-inch model still feels best to me when running an app fullscreen or two apps side-by-side feels most comfortable to me.
。新收录的资料是该领域的重要参考
particles[i].mass = 1.0;
It gets worse. We want to know the visible area. On NTSC, the vertical blanking interval is approximately 22 lines per field. My reading of the FCC standard is that that should remain the same for color relative to the line frequency. So 262 becomes 240p, and 202 becomes 180p. Technically, it could get even worse. Vertical overscan is a thing; the Apple ][ places only 192 lines under computer control. But let’s stick with 180 horizontal lines. Here’s a size comparison on the vertical axis, ignore the horizontal.