you can fly!? DarkSnow - the Screensaver
part 8 - using Irfanview to turn an
animation or slideshow into a screensaver

more tutorials





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part 1
-
getting started
part 2
-
making selections & the alpha channel
part 3
-
blurring a selection in the alpha channel
part 4
-
creating an animation
part 5
-
more snow in the foreground
part 6
-
making an animation loopable
part 7
-
save as image sequence
part 8
-
using Irfanview to create the screensaver
part 9
-
more advanced tricks: light diffusion, day for night
part 10
-
shining some light rays from the window
part 11
-
working with frames & adding more drama



Say Hello to Irfanview
Start Irfanview.

Irfanwhat, you ask?  If you haven't used Irfanview, welcome to planet Earth. Get this free image utility at www.irfanview.com - it's a must-have. No wonder it's been downloaded at download.com or tucows and many others by dozens of millions of users.
enter the slideshow module



Select the slideshow option from the File menu

Find the folder containing your animation's frames which you saved as image sequence:
You can drag-and-drop them all into the active list below, or click 'Load' or Load all, if those are the only images in that folder.

Set the speed at which it will lay back the 'slideshow'. It can be a few seconds per frame, or in our case 15-20 frames per second. For 20 fps you'll need a delay of 0.05 seconds:


In the section on Slideshow options, be sure to check the box "Loop slideshow"

Also, Hide the mouse cursor.


There are also  options for how to play the slideshow: in a window of particular dimensions, or in full screen mode. If you want it to become a screensaver you'll want fullscreen mode, and click also the Full screen options for additional details.

Here's one fullscreen option you don't want to enable: Resampling.

If you have an image sequence that's smaller than the screen resolution at playback (or larger), then it will resize the images as it displays them. A plain resize can be fast enough but if you ask it to also resample the pixels for smoothing and de-pixelation, it might slow down the animation. I recommend unchecking that option for that reason.

Hey, it's a screensaver, not a a presentation for a digital art frame. Forget about having the absolutely highest possible quality or definition for a moment,... chances are you'll be away from the monitor anyway ;-)


Ready to save as Screensaver

Click this option:

Save slideshow as EXE/SCR


This is your last dialog :

  • select Screensaver as the format (instead of standalone executable)
  • play in fullscreen mode
  • remember the destination folder or save it to the desktop or MyDocuments so you can easily find it. Give it a good name.


You can click 'Create', and a few seconds later it's done.

Installing the Screensaver

Select the created screensaver file:  The screensaver file is a file ending in .scr


Be careful though if someone ever sends you an email with a file attached that's named .scr - it could also be a script, and possibly a virus or trojan, spyware or worm. Never open an email attachment without protection.

As for your screensaver file you just created, it's safe of course, you can double-click it to test it and see the animation play fullscreen.

Click again or hit a key to quit the screensaver when done.

If you like the way it looks, it's ready to become the screensaver for your system: copy it into the folder where Windows holds most screensavers:

C:\WINDOWS\System32


Then simply right-click on the Windows desktop, and select Properties to open the display properties:



Select the Screen Saver tab in the Display Properties:








Select your
newly created
screensaver

Click [Preview] to test it




coming soon:  
going beyond, with additional tricks and special fx


In a following tutorial we'll explore additional effects we could apply, to make it look more like a nigh scene, with light coming out of the windows, and some more hazy foggy appearance with light diffusion.
click here for larger version



part 1
-
getting started
part 2
-
making selections & the alpha channel
part 3
-
blurring a selection in the alpha channel
part 4
-
creating an animation
part 5
-
more snow in the foreground
part 6
-
making an animation loopable
part 7
-
save as image sequence
part 8
-
using Irfanview to create the screensaver
part 9
-
more advanced tricks: light diffusion, day for night
part 10
-
shining some light rays from the window
part 11
-
working with frames & adding more drama