On 9/15/07, Chris Moore <[EMAIL PROTECTED]> wrote: > On 9/14/07, Ulrik Bodén <[EMAIL PROTECTED]> wrote: > > One question, is it possible to animate the gadients just as plain colors? I > > can't do that now but do you think Synfig was meant to be able to do that? > > I'm not sure whether it was meant to be able to animate between any > two gradients - remember that gradients can have any number of CPoints > in them - they don't just go from one color to another. > > You can animate 2-color gradients using the 'two tone' conversion - > that lets you define a gradient using 2 colors, and you can animate > the two colors as usual. See the attached .sif file. > > I reported a bug about the lack of gradient animation a long time ago, > before I discovered the 'two tone' conversion: > > http://sourceforge.net/tracker/index.php?func=detail&aid=1568818&group_id=144022&atid=757416
OK, I've looked at the code, and it's definitely do-able to animate gradients. The only problem is we need to decide how it's going to be done. For example, suppose at time 0s we have a gradient: 0.0 white 0.1 black 0.2 white 1.0 white -- that is a gradient that's all white except for the very left fifth and at time 2s we have a gradient: 0.0 white 0.8 white 0.9 black 1.0 white what should the gradient look like at time 1s, ie. half way between the two? should it go: 0.0 white 0.1 grey 0.2 white 0.8 white 0.9 grey 1.0 black -- ie. a simple average of the two gradients? or should it go 0.0 white 0.5 grey 1.0 white -- since the black is on the left at the beginning, and at the right at the end, it should be spread all the way across in the middle? or maybe: 0.0 white 0.4 white 0.5 black 0.6 white 1.0 white -- the black bit stays the same size, but moves across from left to right? or should it do something else? The first one is the most generally useful. I mean, what if at 0s there were 2 black areas, and at 2s there are 3 red areas - what happens at 1s? If you could think about this it would be useful. Otherwise I'll probably go with the simple average (the first case above) and see how that looks. Chris. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Synfig-user mailing list Synfig-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/synfig-user
