Difference between revisions of "Movie fade"

Type	Python Module
Download	movie_fade.py
Author(s)	Jason Vertrees and Thomas Holder
License	BSD-2-Clause
	This code has been put under version control in the project Pymol-script-repo

Latest revision as of 02:46, 3 April 2017

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:

mset 1x60
movie_fade stick_transparency, 1, 1., 60, 0.

More complex example which involves camera motion:

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.

Example file:

Result

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

@@ Line 1: / Line 1: @@
 {{Infobox script-repo
 |type      = Python Module
-|author    = [[User:Inchoate|Jason Vertrees]]
+|filename  = movie_fade.py
-|license   = [http://www.opensource.org/licenses/BSD-2-Clause BSD]
+|author    = [[User:Inchoate|Jason Vertrees]] and [[User:Speleo3|Thomas Holder]]
+|license   = BSD-2-Clause
 }}
-= Overview =
+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.
-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. For example, to fade in sticks from fully transparent to fully opaque across 60 frames do,
+== 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>
-For help, type,
+More complex example which involves camera motion:
 <source lang="python">
-# syntax
+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>
-movie_fade ?
+'''Example file:'''
-# usage
-help movie_fade
-</source>
+[[Image:Movie fade example.gif|300px|thumb|Result]]
 <source lang="python">
-from pymol import cmd, stored
+import movie_fade
-import string
-import math
-#
-# Movie fades work great, when there is only one mdo command
-# per frame.  mdo does NOT save a stack of commands per frame
-# as one might thing it just consistently updates itself.
-#
-def mStore(frame, theCommand):
-	print "Storing %s into frame %d" % (theCommand, frame)
-	if len(stored.mdoCache)<frame:
-		diff = frame - len(stored.mdoCache)
-		for x in range(diff): stored.mdoCache.append("")
-	stored.mdoCache[frame-1] = stored.mdoCache[frame-1] + ";" + theCommand
-def mRunCache():
+fetch 1hpv, async=0
-	for f in range(len(stored.mdoCache)):
+orient
-		cmd.mdo(f+1, stored.mdoCache[f])
-def mClearCache():
+#format
-	for f in range(len(stored.mdoCache)):
+bg black
-		cmd.mdo(f+1, "")
+show_as cartoon
-	stored.mdoCache = []
+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
-def movie_fade( setting, startFrame, startVal, endFrame, endVal, smoothing="linear"):
+#movie
-	"""fades and smooth transitions"""
+mset 1x120
+movie_fade transparency,1, 0, 60, 1, 1hpv
+movie_fade transparency,61, 1, 120, 0, 1hpv
+</source>
-	try:
+== See Also ==
-		from pymol import stored
-		stored.mdoCache
-	except AttributeError:
-		print "mdoCache not found, creating new."
-		stored.mdoCache = []
-	startFrame = float(startFrame)
+* [[mdo]]
-	endFrame   = float(endFrame)
+* [[mappend]]
-	startVal   = float(startVal)
+* [[set]]
-	endVal     = float(endVal)
+* [[Movie_color_fade|movie_color_fade]]
-	frameRange = math.fabs(endFrame-startFrame)
-	# boundary conditions to control the stricly <
-	# aspect of the range function
-	if startFrame<endFrame: endFrame = endFrame + 1.
-	if startFrame>endFrame: endFrame = endFrame - 1.
-	for fr in range(int(startFrame), int(endFrame)):
-		fracV2 = float((fr-startFrame)/frameRange)
-		fracV1 = 1.0 - fracV2
-		totalIntensity = fracV1 * startVal + fracV2 * endVal
-		if len(string.split(setting,','))==1:
-			mStore(fr,  "set %s, %1.3f, quiet=1" % (setting, totalIntensity))
-		else:
-			(s1,s2) = string.split(setting,',')
-			mStore(fr,  "set %s, %1.3f, %s, quiet=0" % (s1.strip('"'), totalIntensity, s2.strip('"')))
-	mRunCache()
-cmd.extend("movie_fade", movie_fade)
-cmd.extend("movie_fade_clear_cache", mClearCache)
-</source>
 [[Category:Script_Library]]
 [[Category:UI_Scripts]]

Difference between revisions of "Movie fade"

Latest revision as of 02:46, 3 April 2017

Usage

Examples

See Also

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