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| author | N.N. <matju@users.sourceforge.net> | 2008-04-28 18:10:15 +0000 |
|---|---|---|
| committer | N.N. <matju@users.sourceforge.net> | 2008-04-28 18:10:15 +0000 |
| commit | 91c0003b158e5f0ed9d0677fb136ae8bb6f86ec5 (patch) | |
| tree | d413a48086819f6a2620cd27d030861d122d4f3f /externals/gridflow/doc/introduction.html | |
| parent | 98dfdfa2fc1c92ba69e33fd77ed3392034297c1f (diff) | |
this is an old gridflow, and there's already a svn repository at http://gridflow.ca/svn/trunk
svn path=/trunk/; revision=9739
Diffstat (limited to 'externals/gridflow/doc/introduction.html')
| -rw-r--r-- | externals/gridflow/doc/introduction.html | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/externals/gridflow/doc/introduction.html b/externals/gridflow/doc/introduction.html deleted file mode 100644 index 8adf4ead..00000000 --- a/externals/gridflow/doc/introduction.html +++ /dev/null @@ -1,125 +0,0 @@ -<html> -<head> -<title>GridFlow 0.7.7 - Introduction</title> -<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> -<link rel="stylesheet" href="gridflow.css" type="text/css"> -</head> - -<body bgcolor="#FFFFFF" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"> -<br> -<table width="100%" border="0" cellspacing="5"> - <tr><td colspan="4" bgcolor="#082069"> - <img src="images/titre_gridflow.png" width="253" height="23"></td></tr> - - <tr><td> </td></tr> - <tr><td colspan="4" bgcolor="black"><img src="images/black.png" width="1" height="2"></td></tr> - - <tr><td colspan="3" height="16"> - <h4>GridFlow 0.7.7 - introduction</h4> - </td></tr> - - <tr> - <td width="12%" height="4"> </td> - <td width="80%" height="4"> </td> - <td width="12%" height="4"> </td> - </tr> - - <tr> - <td width="13%"> </td> - <td width="82%"> - - <p> The philosophy that guides PureData is a simple but powerful one: - the software must first provide the user with generic tools - rather than imposing pre-cooked effects. In other words the user - should have total freedom. - - <p> GridFlow follows that philosophy: it first defines elementary - mathematical operations. Those can in turn be used as simple - visual effects or be combined to produce more complex effects. - - <p> The strategy followed by most video plugins for PureData, jMax, and MAX/MSP, is - to provide the user first with constructs for manipulating video - streams at a fairly high level. The strategy put forward by GridFlow - is different. - - <p> It can be said that in all those video plugins there are three layers: - the first, the low level, is not accessible to non-programmers (and fairly - difficult of access even to programmers); the second, mathematical, where - one needs not to be a C++ programmer, but still requires a good - understanding of how numbers and pixels and colours and geometry work; and - a third level that looks more like the software an artist would like to - use. - - <p> In other video plugins there is a fairly low emphasis on the second - layer. In GridFlow that layer is very strong and opens many possibilities. - Even though the third layer in GridFlow is not as developed as it could, - the second layer may be used to produce third-layer object classes much - more quickly. - - <p> GridFlow provides a unifying view of multimedia information. Several - kinds of data -- raster graphics in any number of channels, coordinate - transforms, matrices, vectors -- may all be represented by <b>Grids</b> - (also known as multi-dimensional arrays). Grids exist in several ways: they - are usually streamed from object to object, but they can also be stored in - memory, stored into a file, sent through the network. - - <p> The new GridFlow (0.6) also provides scripting, which inserts itself - between the first and second layer to provide additional functionality. The - language that has been chosen is Ruby, designed by Yukihiro Matsumoto - during the 90's. This new layer is used for portability between host - software (PureData vs jMax), for portability between platforms (Windows/Mac - versions do not exist but would be farther ahead if it wasn't for Ruby), - for independency from host software (GridFlow can be tested and used - independently of PureData/jMax), for quick extensibility (you can create - PureData/jMax object classes directly in GridFlow's configuration file), - and so on. - - <p> In short, GridFlow is a whole new world of possibilities for - the multimedia artist and programmer. - - <p>- matju</p> -</td></tr> - - <tr><td> </td></tr> - <tr><td colspan="4" bgcolor="black"><img src="images/black.png" width="1" height="2"></td></tr> - <tr> - <td width="13%"> </td> - <td width="82%"> - - <p> Here is an example of how things work in GridFlow. (if you want more - information, consult the rest of this manual) - - <p> A picture is a three-dimensional Grid:<br> - <b>0</b> : rows <br> - <b>1</b> : columns <br> - <b>2</b> : channels <br> - - <p> - Pictures come in all sorts of heights and widths. The channels, however, - are more limited in number. Usually it's three: Red, Green, Blue. - - <p> A coordinate transform, when specified pixel by pixel, may be a - three-dimensional Grid in which the two "channels" are Y and X, - representing row-and-column positions in a separate picture. - - <p> Other shapes of grids could be designed to represent various things; - for example, configuration for blur effects. Grids could be useful for - things not directly related to raster pictures (e.g. sound recordings). - Those are all kinds of things you could actually develop <i>within</i> the - PureData / GridFlow framework. You don't need to wait for me. -</td> - - <tr><td> </td></tr> - <tr><td colspan="4" bgcolor="black"><img src="images/black.png" width="1" height="2"></td></tr> - - <tr><td colspan="4"> - <p><font size="-1">GridFlow 0.7.7 Documentation<br> - by Mathieu Bouchard <a href="mailto:matju@sympatico.ca">matju@sympatico.ca</a> - and<br> - Alexandre Castonguay <a href="mailto:acastonguay@artengine.ca">acastonguay@artengine.ca</a></font></p> - </td> - </tr> - -</table> -</body> -</html> |