Leonard Daly's blog
Perspective vs. Orthographic Cameras
Submitted by Leonard Daly on Wed, 05/23/2018 - 10:03This set of examples will use the first scene. It is real simple (in terms of elements), but it is sufficient to illustrate the projection issues. For the purposes of this discussion assume that the display screen is sufficiently large to show everything that is desired to be displayed. Also assume that the rendering software does not enlarge the displayed scene to fit the screen.
XSeen V0.6 Release
Submitted by Leonard Daly on Mon, 04/23/2018 - 18:40XSeen V0.6.19 has just been released. This version has new major functionality plus bug fixes for all previous versions. The major functionality includes
Creating Reality 2018 Presentation
Submitted by Leonard Daly on Tue, 03/13/2018 - 12:26XSeen was presented during a workshop at Creating Reality Hackathon 2018 at USC. The presentation is publicly available. The presentation discusses the state of XSeen at the beginning of the Hackathon. It includes a getting started download that includes all of the material in the presentation.
XSeen Has Its Own Site
Submitted by Leonard Daly on Fri, 03/09/2018 - 08:54For the last nine months I have been working on a declarative language for VR/AR/MR to display 3D content in a browser. I have called the language XSeen.
Proposed X3D Profile: Static Model
Submitted by Leonard Daly on Mon, 01/22/2018 - 08:31In the marketplace of file formats for 3D content, X3D has a tremendous advantage over all other formats by nature of its ISO Standardization, openness, and compatibility over 20 years. There are other formats that meet one or more of these features, including OBJ and FBX; however, X3D has not been a dominant or even significant player in the marketplace.
Model Archive Format for X3D
Submitted by Leonard Daly on Mon, 10/02/2017 - 09:30Recently there has been discussion about the suitability of various 3D formats as an archive format, especially for models. There are formats that have been around a long time (OBJ, FBX, X3D), those that are optimized for delivery (glTF), those that are widely used in existing tool chains (OBJ and FBX), plus a number of other criteria and formats including tool-specific (Blender, Maya, etc.). The most widely used format is FBX and any format that seeks to supplant it needs to offer at least as much capability as that one.
glTF/X3D Comparison
Submitted by Leonard Daly on Fri, 09/15/2017 - 20:20WIth 3D/VR becomming practical in the web browser there are a lot of questions concerning the right format to use for various situations. This post looks at two model formats - X3D and glTF. Both formats support full geometric surface modeling, but there are differences between these formats for some specific areas.
DEF/USE - X3D vs DOM
Submitted by Leonard Daly on Tue, 08/22/2017 - 16:56This is part of a multi-part post that explores some ideas for integrating X3D into HTML5 DOM. It explores various options and their implications. The primary post is "Integrating X3D into DOM - Issues".