# Grok all the things

grok (v): to understand (something) intuitively.

# 3D Graphics

ðŸ™„ Â Cynics & grumps

The digital representation of a world we long to escape to, an environment we wish to perfect, or the visual illusion that's just too darn attractive to be real? Thanks to the frustratingly complex world of computer programming and mathematics, we've managed to create something that resembles our world, but with a few more polygons and a lot less real-life annoyances.

Let's begin with a short glimpse into the history of 3D graphics, because, why not? You'd think that in the good old days when we were using punch cards to program, we'd have more critical issues to worry about (like, I don't know, world hunger). But no, 3D graphics found its start in the 1960s at the University of Utah (of all places). And since then, we've made significant progress from simple wireframe models to photorealistic worlds that have acquired an alarming number of devoted worshippers.

If you're still here and haven't run off to a virtual world yet, let's touch upon the fundamentals of 3D graphics: vertices, polygons, and the dreaded mathematical concepts responsible for making your head spin. Vertices are just points in space with coordinates (x, y, z), polygons are flat shapes made up of these vertices, and the magic of 3D graphics lies in connecting these polygons to form complex shapes. Easy enough so far, right? I agree. But wait until you learn about matrix transformations, projections, rasterization, and other "fun" mathematical operations that follow suit.

Oh, and by the way, you can't talk about 3D graphics without mentioning graphics processing units (GPUs) â€“ those expensive chips that your gaming-obsessed friends can't stop raving about. GPUs are built specifically to handle all those mathematically-intensive calculations because let's face it â€“ nobody wants to slow down their computer with such laborious tasks. Plus, the fact that we're willing to spend hundreds of dollars on these shiny little chips speaks volumes about how much we value virtual worlds over the real one.

Now, don't get me wrong, I'm just as amazed that we've managed to create something like 3D graphics. But as with any technological endeavor, you can't escape the jungle of file formats, programming languages, and APIs. There's OpenGL for cross-platform graphics, DirectX for Microsoft lovers, and Vulkan for those who enjoy pushing the envelope a bit further. The choice is yours; really, nobody's stopping you from picking one (or all) of them and spending countless hours trying to get those virtual trees to cast a decent shadow.

And as if things weren't complicated enough, we've got 3D modeling software like Blender, Maya, and 3ds Max to help (or hinder) your creative process. Learning the ropes of these software suites is like learning to speak alien languages while blindfolded, but hey, that's just the price we pay for the wonders of 3D graphics.

In conclusion, 3D graphics is an impressive field that has contributed to many industries â€“ gaming, architecture, design, medical visualization, and more. But let's not fool ourselves here; this world of sophisticated illusions is not all fun and games. In the end, it's a complex web of advanced math, computer programming, eye-watering prices for GPUs, and an endless loop of learning software that will make you question your life choices.

So next time you find yourself awestruck by a beautifully rendered scene in your favorite video game or an architectural visualization so realistic you'd swear it exists, remember: behind every stunning 3D graphic lies a grueling journey full of tears, frustration, and sleepless nights.

Grok.foo is a collection of articles on a variety of technology and programming articles assembled by James Padolsey. Enjoy! And please share! And if you feel like you can donate here so I can create more free content for you.