Leonard Daly's blog

Viewing 3D on Your Phone

Color-coded ATPase-2 crystal structure as a 3D ribbon modelSmart phones and tablets with recent releases of Chrome, Firefox, Safari, or Internet Explorer can display 3D models from the Web. These devices also have internal sensors that tell the browser about its orientation.

Check Mobile Orientation

Not all mobile devices and browsers correctly report the device orientation. According the the World Wide Web Consortium (W3C) Working Draft 1 from December 2011 "DeviceOrientation Event Specification" the orientation is given by three angles representing compass direction (α), tilt (β), and rotation (γ). The 0 values for these is with the device flat, screen up, pointed North.

Converting Maya FBX Files

Maya is used for a lot of 3D modeling. Modelers frequently save their completed work in a FBX file. FBX is a proprietary format designed by Autodesk (check this). In addition to the model, it contains the textures, rigging, and animation. It is a very convieient format, if you have an appropriate library of other tool to unpack it. Blender is an open-source modeling program. There is an FBX importer in Blender that handles many of the features and variations of the FBX format.

Creating 3D Scenes for the Browser

"Creating 3D Scenes for the Browser", a presention to Digital Designers Los Angeles and Digital Media Artists Los Angeles on 20 Jan 2015. The PDF of the presentation with slides and notes is available. This is the final version.

The presentation focuses on the capabilities and reasons for using X3D for Serious VR & 3D graphics .

Net Neutrality

Net Neutrality is showing up as one of the top stories shortly after the 2014 elections. It is not an easy topic to understand, especially with all of the claims and counter-claims flying around the Internet. Many of the statements are made by people who have no idea what is involved but are taking their position purely for political or personal financial reasosns. This post is an attempt to explain in relatively simple terms what is involved in Net Neutrality by using familiar analogies.

3D Google Cardboard

In a previous post I showed how a scene could be displayed in a browser and viewed stereoscopicly with Google Cardboard. This post describes a more efficient means of creating the display. In both cases, the browser screen is split in half with slightly different viewpoints so the eyes/brain combination views the result with depth.

Weak Passwords At Fault for "Morto A"

This is a short follow-on to the Passwords and Hacking series.

The Internet worm "Morto A" continues to infect computers. It uses Microsoft's Remote Desktop to spread. It attempts to gain access to your computer using Remote Desktop's protocol. It will succeed if your password is one of 37 simple passwords listed below.

Solution: Don't use a simple password. See Passwords and Hacking for various means to create complex passwords.

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