View source for Movie fade

{{Infobox script-repo
|type      = Python Module
|filename  = scripts/movie_fade.py
|author    = [[User:Inchoate|Jason Vertrees]] and [[User:Speleo3|Thomas Holder]]
|license   = BSD-2-Clause
}}

This script will help fade in and out settings in a movie. Just specify the setting, it's initial value at an initial frame and it's ending value and frame.

== Usage ==
 movie_fade setting, startFrame, startVal, endFrame, endVal [, selection ]

== Examples ==
To fade in sticks from fully transparent to fully opaque across 60 frames do:

<source lang="python">
mset 1x60
movie_fade stick_transparency, 1, 1., 60, 0.
</source>

More complex example which involves camera motion:

<source lang="python">
fetch 1rx1, async=0
as cartoon
show surface
mset 1x80
movie.roll
movie_fade transparency,  1, 0., 40, 1.
movie_fade transparency, 41, 1., 80, 0.
</source>

'''Example file:'''

[[Image:Movie fade example.gif|300px|thumb|Result]]

<source lang="python">
import movie_fade

fetch 1hpv, async=0
orient

#format
bg black
show_as cartoon
color marine, ss s
color red, ss h
color white, ss l+""
show sticks, resn 478
util.cbao resn 478
set surface_color, white, 1hpv
show surface

#movie
mset 1x120
movie_fade transparency,1, 0, 60, 1, 1hpv
movie_fade transparency,61, 1, 120, 0, 1hpv
</source>

== See Also ==

* [[mdo]]
* [[mappend]]
* [[set]]
* [[Movie_color_fade|movie_color_fade]]

[[Category:Script_Library]]
[[Category:UI_Scripts]]
[[Category:Pymol-script-repo]]