Graphics

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Beautiful bits.
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Some examples of images to classify

The question came up: Why would I go through the trouble of training a neural network, rather than just checking "is the ground in front of me gray-colored?"

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Machine learning and computer vision for autonomous rover racing -- step one

Some interesting news on my project to apply machine vision to the subject of autonomous rover racing.
I've been renting GPU processing power on the GPU processing power spot market (yes, there is such a thing) and training neural networks.

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A hexagon texture. For free!

Here's a PNG file of a hexagon. The hexagon itself is 256 pixels wide and 225 pixels tall. The PNG is 290 pixels wide and 290 pixels tall. You can use this to generate hex tile grids in HTML and Canvas and XNA and really any other presentation framework you want!

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In a browser

I'm taking some time to learn how to actually use Unity3d.

Here's a screen shot of my initial set-up for "space invaders in a browser" (or probably more like "galaga" or "galaxians" or something). Btw: I'm sure those are all trademarked names of games, and they are only used for comparison in this article.

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A texture of grass!

Here's a texture of a grassy field.
I made it by customizing a downloadable filter for the wonderful FilterForge application (which now comes in version 2!)
I hereby grant this texture into the public domain.
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Distressed Wood (Beige)

A distressed, murky wood. Fences, docks, etc.

includes:

  • Diffuse Map
  • Bump Map
  • Gloss Map

preview of maps

Size: 2048x2048

Download Textures (15 MB)

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Rich Wood (brown)

A rich, brown wood, somewhat worn. Perfect for hardwood floors.

includes:

  • Diffuse Map
  • Bump Map
  • Gloss Map

preview of maps

Size: 2048x2048

Download Textures (15 MB)

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Havok Content importer for XNA Game Studio 3.1

Included, please find two DLLs: A main Havok content tools wrapper, and a simple C# assembly that actually exposes a content importer for use with XNA Game Studio version 3.1. Drop these in your solution folder, and point your content project at the HavokImporter.dll assembly (add as a Reference to the Content project).

Meter measurement texture

This texture comes in handy when you want to align things to a grid.

grid

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The Direct3D/XNA vertex transform pipeline -- how to go between model coordinates and screen coordinates, and back again!

1) WORLD matrix. This takes vertices from object-local space (0,0,0 in the middle of the object) to world space (position and orientation applied based on 0,0,0 at your "world origin" position). This is a convenient space to do normal mapped lighting and environmental reflection in.

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