From: dooglus Date: Mon, 21 Jan 2008 01:33:37 +0000 (+0000) Subject: Document the canvas versions. X-Git-Url: https://git.pterodactylus.net/?a=commitdiff_plain;h=0c9dc5fc3f31078f5f1aeaa3dc3adf9d6335a8c3;p=synfig.git Document the canvas versions. git-svn-id: http://svn.voria.com/code@1411 1f10aa63-cdf2-0310-b900-c93c546f37ac --- diff --git a/synfig-core/trunk/src/synfig/canvas.h b/synfig-core/trunk/src/synfig/canvas.h index a62c641..590d162 100644 --- a/synfig-core/trunk/src/synfig/canvas.h +++ b/synfig-core/trunk/src/synfig/canvas.h @@ -45,6 +45,37 @@ /* === M A C R O S ========================================================= */ +/* version change history: + * + * 0.1: the original version + * + * if a waypoint goes from -179 to 179 degrees, that is a 2 + * degree change. there's no way to express a 720 degree + * rotation with a single pair of waypoints + * + * 0.2: svn r1227 + * + * angles no longer wrap at -180 degrees back to 180 degrees; if + * a waypoint goes from -179 to 179 degrees, that is a rotation + * of 358 degrees. loading a version 0.1 canvas will modify + * constant angle waypoints to that they are within 180 degrees + * of the previous waypoint's value + * + * the 'straight' blend method didn't used to work properly. it + * didn't work at all on transparent pixels in layers other than + * the PasteCanvas layer. for example, the examples/japan.sifz + * file has a red circle (straight, amount=1.0) on top of a + * striped conical gradient. if 'straight' was working, the + * conical gradient would be entirely obscured by the circle + * layer (even by its transparent pixels) + * + * 0.3: not yet implemented + * + * the 'straight' blend method was fixed. loading a version 0.2 + * or older canvas will replace the 'straight' blend method in + * non-pastecanvas layers with 'composite' + */ + #define CURRENT_CANVAS_VERSION "0.2" /* === T Y P E D E F S ===================================================== */