WebKit CSS3 Transformation Matrix
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Back to Quaternion Notes By: Laura Downs Contents : Review of Complex Numbers , Review of Quaternions , Representing Rotations , Concatenating Rotations , For the Mathematically Inclined , A Matrix Representation for Quaternion Multiplication , Computing Rotation Matrices from Quaternions , Euler Angles If you would like a hard copy of these notes, a gzipped postscript version can be found in the file quatnotes.ps . The LaTeX source can be found in the file quatnotes.tex . If you are interested in better understanding quaternions, look at the proof that quaternions can be used to compute rotations
Yar, 3D transform be ahead. Safari only. The examples below also live together in a lovely house in this fiddle . Safari has support for a perspective transform function . This is pretty convenient for doing a simple 3d transform, like a card flip. The problem with it is that the perspective is only for the one element.
Last week WebKit included the much anticipated (at least on my part) 3D transforms in its latest nightly build, announced practically alongside the awesome Snow Stack demo that provides a 3D interface for browsing Flickr images (use left, right and space-bar). Today the Surfin Safari blog has updated with some more exciting demos, including “ Morphin Power Cubes ” and “ Poster Circle ”. It is now possible to create all sorts of crazy three-dimensional and animated user interfaces; the power comes largely in -webkit-perspective and a number of updated transforms–adapted to incorporate the Z axis. Since working on the 3D cube using 2D transforms back in April I’ve experimented with perspective to create something more powerful, playing around with 3D transforms on the iPhone a few times (e.g. this early rotating demo ). Now I’ve got something worth sharing.
WebKit on Mac OS X now has support for CSS 3D transforms , which allow you to position elements on the page in three-dimensional space using CSS. This is a natural extension of 2D transforms, which we described in an earlier blog post . 3D transforms have been supported on iPhone since 2.0, and now we’re please to announce that we have currently added support for Leopard and later. If you want to jump right in and see a demo, make sure you’re running recent WebKit nightly build on Leopard or later, and load this example: Poster Circle Here’s a screenshot for those not running a recent-enough WebKit (if you are, hover over it for a treat!):
Introduction For a long time 3D has been the preserve of desktop applications. Recently with the introduction of advanced smart-phones that have access to native GPU acceleration we have started to see 3D used nearly everywhere. Commonly, 3D is primarily used as a device for gaming or some advanced user interfaces.
The examples on this page will work properly in Safari, Chrome and Opera. In Firefox prior to version 4 you will see the transforms, but without any animation. Transformation effects also work now in Internet Explorer 9 using the -ms- vendor prefix. The implementation of animation in CSS involves setting up a transformation to take place in response to a mouseover or other event. Then, rather than applying the effect instantly, we assign a transition timing function which applies the transformation/s over a set time period.
So I wasn’t content with the things I’ve tried doing in Safari, and recently began digging through the documentation of the iPhone SDK and the actual CSS Transforms spec . I was a bit skeptical when I first read about all the cool functions that work in Webkit iPhone, but nowhere else, because there was little documentation , and literally nothing done by other developers, no demos, no tests. I thought, surely, some students with too much free time must have jumped on that immediately?
Matrix3d When you dive into apples documentation of matrix3d you will find a short definition "Specifies a 3D transformation as a 4 x 4 matrix." following by the function definition in code: matrix3d(m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m31, m33) Unless you're a math god you probably think to yourself: "I find the lack of documentation quite disturbing" followed by the question on how to build the really hot Superman stuff on left.
Abstract CSS transforms allows elements styled with CSS to be transformed in two-dimensional or three-dimensional space. This specification is the convergence of the CSS 2D transforms , CSS 3D transforms and SVG transforms specifications. Status of this document This section describes the status of this document at the time of its publication.
Contents 7.1 Introduction For all media, the SVG canvas describes "the space where the SVG content is rendered."