I’m Not Part of that Generation

There is something that really irks me. People have this tendency to assume that kids are ignorant when it comes to “older technologies”. This is akin to assuming that anyone of non-Caucasian ethnicity is a recent immigrant. Please don’t assume I don’t know what a landline is. I’m 17, but I’m sure this applies to younger kids.

Here is a list of the most common ones:

  • Records: I have a friend who owns a record player and shops at record stores.
  • VHS tapes: My childhood memories include watching movies on VHS. I still own VHS tapes and a VHS player.
  • CDs: Really? This is not an outdated technology.
  • Floppy disks: Again, I can remember using floppy disks, and it wasn’t that long ago.
  • Landlines: Everyone I know has a landline.
  • Manual transmissions: I have a friend who recently bought a new car with a manual transmission. He prefers them.
  • Dialup: I can’t speak for everyone, but I’ve used dialup before.
  • Dedicated flip phones: Some of my friends still use those.
  • Cassette tapes: Most cars still have tape players, and most people probably have a selection of tapes sitting around somewhere.
  • Life before the mainstream Internet: I was there.
  • Radio: NOT AN OUTDATED TECHNOLOGY.
  • Books: Stop that.

So, for the sake of everyone, please don’t immediately assume a kid doesn’t know what a given technology is. Maybe they don’t, but it’s offensive either way.

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OpenGL and Geometry Generation

Today I was thinking about 3D rendering (in part because of the recent work I’ve been doing with ray tracing). I worked out all the math for drawing a polygon based on a list of vertices and a camera. I was considering coding it up, but then I realized that I was very unfamiliar in working with Windows (because I sure as hell wasn’t going to do this in Java). So I spent the greater portion of the afternoon reading a tutorial on Windows programming and using OpenGL, at which point I abandoned my original. I was just going to finally figure out how to use OpenGL.

I had worked with GLUT before when working on a Parallel Computing lab. However, I only used pixel control in that case; I was rendering subsections of a Mandelbrot set. However, that was easier because all the requisite libraries were already installed in the major lab at school (which has workstations with Gentoo installed). Working at home, I have been confounded. I just can’t get the linker to use all the requisite libraries.

The whole thing that got me thinking about 3D engines was my working on a HL2 level. Often I will import brushwork (pieces of the level) from the game’s campaign levels; it saves time and adds a nice level of detail to the environment. However, I was thinking about common elements such as stairs, doors, windows, and grates. It’s a multi-step process to cut a hole in a brush, unless you use carve (but nobody uses carve because it doesn’t give you control over how the geometry cuts). Doors are tedious to cut out and then line up with the texture. Non-solid stairs are the most painful to make, however. You have to arrange the steps and make sure the sidings match up, and for each new type of turn you have to rework the geometry. The whole idea of hand-making all the geometry in a level is ridiculous. I haven’t seen a single FPS level editor than lets you define procedures for geometry generation.

A screenshot of the Hammer UI

A screenshot of the Hammer UI


I feel like it would be relatively simple to define a generation process for buildings, for example. Each building is spaced a certain distance in from the sidewalk. There are maybe two or three justifications for things like planters and doors. Then windows are spaced evenly apart, with buffer spaces on either side of the building. You could attach balconies or planters on to every windows, awnings above doors, and even outdoor area layouts for cafes. After meticulously defining a couple of building styles, you could almost instantly generate entire blocks. Then come the nested procedures. A street, for example, would have periodic drains and manholes, distributions of building types based on the neighborhood type, and junctions to more streets. Signs, traffic lights, road markings, and crosswalks would all be placed correctly at street corners. Coul-de-sacs could fill up empty space. Interiors could be set as well for buildings. Floor plans could be modular. Rooms with distributions of room types and different layout permutations would combine into floors. A building type could have a sequence of floor types defined, such as bottom level stores and top level apartments. Central structures like stairwells would only need to be made once.

Although the procedural parameter definitions might take a while longer than making regular geometry, it would be a huge time saver. Not only could full geometries be generated, but intricate, custom-designed battle areas could be laid out faster. Common terrain pieces like walls, fortifications, stairs, railings, gates, and hedges could be created with the use of a single spline. Suddenly a task like designing the maps for my strategy game becomes less daunting. The pipeline for map production is shortened. General map layouts can be quickly sketched out and then directly generated. Beta testing would be infinitely easier, as map adjustments could be made in hours, rather than days.

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