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--- devel:misc:anims [2016/01/25 17:15] – [Modify the animation parameters: filters] cerquaglia
+++ devel:misc:anims [2016/03/30 15:23] (current) – external edit 127.0.0.1
@@ Line 10: / Line 10: @@
 ===== How to make an animation using VirtualDub =====
-==== Create an animation in 6 steps ====
+==== Quick step-by-step tutorial ====
   * Open VirtualDub.
-  * Drag the first figure, "Figure 0", into VirtualDub (all the subsequent figures will be automatically imported).
+  * Drag the first figure, "Figure 0", into VirtualDub (all the subsequent figures will be automatically imported) or select the figure with ''File''->''Open video file''. On the left pane, you see the original image and on the right pane, the image as it will appear in the video. Right-click the images to zoom/unzoom. {{ :devel:virtualdub:virtualdub01.png?direct&600 |}}
-  * Apply the desired filters in order to adjust the aspect of the animation (see next section) __NB__: To help you, both the initial figures and the preview of the result can be visualized '' -> Plane Layout''. A zoom is also available (right click on the figure).
-  * Click on ''Compression'' to choose the compression format (Xvid in this case, but not mandatory). __NB__: in the codec manager set the ''Target quantisizer'' to 2.0 (or 4.0).
+  * A lot of tools are available to adjust the video. You should at least define the size, framerate and compression properties with the ''Video''-menu. {{ :devel:virtualdub:virtualdub02b.png?direct&400 |}}
-  * Click on ''Frame rates'' to choose the speed of the animation.
+    - Add a ''Resize''-filter to define the output size. If the video is to be displayed with a video projector, it is advised to adjust the size according to the projector resolution (typically no more than 1280*1024). Some codecs (xvid) require picture size multiple of 4 or 16, for example; this can be done automatically with the ''Codec-friendly sizing'' option. {{ :devel:virtualdub:virtualdub03b.png |}}
+    - Click on ''Frame Rate'' to choose the number of frames per second. {{ :devel:virtualdub:virtualdub04.png |}}
+    - Click on ''Compression'' to choose the compression format. Xvid is a sensible choice but the Xvid-codec must be installed separately before you can use it in Virtual Dub. __NB__: in ''Configure'', set the ''Target quantizer'' to 2.0 for a better quality on mesh drawing (or keep 4.0 for a better compression keeping a good quality).
+{{ :devel:virtualdub:virtualdub05.png |}}
   * Select ''File -> Save as AVI'' to create the animation.
@@ Line 23: / Line 29: @@
 Usually, before creating the animation, you want to make some modifications, for example setting the dimensions of the animation in order to have the right output size (resizing an animation, in PowerPoint for instance, should be avoided). To modify the animation you can use the different __filters__ provided by VirtualDub. Those needed in this context are:
-  * **Resize**: to change the dimensions of the animation (by predefined patterns or in a customized fashion). __NB__: some codecs require dimensions that are multiple of some quantity (2, 4, 16, etc...). To take this into account you can either select one of the "Codec-friendly" options in the filter manager or do it by hand using the Crop filter (see next point).
+  * **Resize**: to change the dimensions of the animation, by predefined patterns or in a customized fashion (see above). __NB__: some codecs require dimensions that are multiple of some quantity (2, 4, 16, etc...). To take this into account you can either select one of the "Codec-friendly" options in the filter manager or do it by hand using the Crop filter (see next point).
   * **Crop**: to crop figures (to get rid of undesired edges for instance, or to adjust the dimensions to match particular codec requirements).
   * **Logo**: to insert a logo in the animation.
@@ Line 33: / Line 39: @@
 __Remark 3__: The Resize filter can also be used to obtain animations of the right size to be uploaded on [[https://www.youtube.com/channel/UC4G1VzsYVgcOGWiUVIEnmJg|YouTube]] (avoiding in this way the automatic addition of black edges in order to compensate the difference between the dimensions of the uploaded video and those imposed by YouTube).
-__Remark 4__: If you need to convert the AVI file into another format, it can be easily done using Format Factory (available through LiberKey).
+__Remark 4__: If you need to convert the AVI file into another format, this can be easily done using Format Factory (available through LiberKey).