On Sun, Feb 24, 2013 at 06:43:33AM +0100, Rune K. Svendsen wrote: > From: "Rune K. Svendsen" <runesv...@gmail.com> > > I was doing some research on why I thought enabling the zoom/fade > animations added latency (a gap between releasing the launcher > button and the window appearing), and I found out that it's because, > for the first few frames, the alpha value is set to zero due to the > spring value being zero for the first few frames. This effectively > causes the first few frames to be invisible, and so, delays the > animation by about 20-30 ms. Making sure the alpha value has a > minimum value to begin with, makes opening new windows feel more > responsive when the animation is enabled.
I'm not sure about these two. I think we should try to tweak the animation to be faster instead. Starting at 0.3 alpha feels a little bit like it pops into view and then fades the rest of the way to 1.0. Kristian > --- > src/animation.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/src/animation.c b/src/animation.c > index 9e2ad4e..e86fda3 100644 > --- a/src/animation.c > +++ b/src/animation.c > @@ -214,6 +214,9 @@ zoom_frame(struct weston_surface_animation *animation) > 0.5f * es->geometry.height, 0); > > es->alpha = animation->spring.current; > + //starting with alpha set to 0 will cause the first frames to be > invisible. > + if (es->alpha < 0.3) > + es->alpha = 0.3; > if (es->alpha > 1.0) > es->alpha = 1.0; > } > -- > 1.7.10.4 > > _______________________________________________ > wayland-devel mailing list > wayland-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/wayland-devel _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/wayland-devel
