12 Feb
2008
12 Feb
'08
10:12 a.m.
Ok. ColorMatrix in the current svn (17306) uses premultiplied alpha. So this should be changed. But how can premultiplication be undone? all data is lost when alpha~0, isn't it?
By the way, I guess premultiplication is also involved in the bug affecting turbulence: when transformed (rotated for instance), turbulence becomes more transparent... jfb.