This tutorial offers basic notions needed to generate frames of an animated video with Explorador FF, hereafter EFF. With the information here written you will learn to create a sequence of frames, but in order to compress them in a video file you will need a different software. At the end of this tutorial you will find links with useful info for this end.
Before getting started it is highly recommendable to read the EFF tutorial, especially tips, this way you will optimize your work and save a lot of time just by following them.
The following examples are based on a fractal point which parameters can be downloaded below in order to follow the indications in a practical way if wished, and they refer to the creation of a zoom sequence with rotation.
Preparation of the image
Configuration of options
Configuration of the task
Start and stop the task
Process the frames
Once we have chosen the image, we have to resize the canvas with a standard video aspect ratio. For example, in order to adjust the frames to a YouTube aspect ratio click on "Window" and go to "Adjust size (px)". Then go to "aspect ratio 1.77", and choose the size you want in the submenu that appears. It is recommended to use a small size, i.e. 320 x 180, in order to follow this tutorial in a practical way.
Once the canvas is resized it may be necessary to fit the image within again.
PREPARATION OF THE IMAGE
The following indications are specific to create a zoom sequence, so they might not be that useful for other sequences:
It is recommended to copy the canvas in order to check if the sequence is nearing the wished point. To do so, select the canvas and copy from the menu "Edit" or with "Control + C". Move this new copy to the side where it is visible but does not bother your work and select again the canvas where you will work on.
Note: From now on all the actions that follow will be applied over the working canvas, and not its copy.
In order to zoom in to get the selected point in the image, the first thing we must do is to zoom out without losing the cords of that point. To do so, click on "Satellite view" in the menu "Edit" or press "Control + Up" twice waiting between them so the image finishes calculating.
CONFIGURATION OF OPTIONS
Click on the menu "Options" and then in "Save changes of the image automatically".
Click on the menu "Options" again and go to "Activate antialiasing filter with grille...". Click on the grille you wish to apply in the submenu. It is recommended to use the size 2x2 in order to follow this tutorial in a practical way.
When the image finishes calculating we will have first frame of our sequence. If you would like to watch it go to the folder of images from the menu "File" by clicking on "Open images folder of the canvas" or press "Control + Shift + O".
Note: Choosing a grille size depends on the kind of image but, in general, images that will create a sequence in movement will not need a very big antialiasing filter.
CONFIGURATION OF THE TASK
Open the form "Tasks" from the menu "View" or with "Control + Alt + T". In the area "Common" adjust the following parameters with values approximated to the given ones:
Check the boxes of the parameters "Zoom" and "Rotate".
Note: Bear in mind that standard videos are played around 25 to 30 frames per second, so the changes between one frame and the next one must be small so the video does not show leaps.
START AND STOP THE TASK
Click on "Start" button. From this moment each calculated image will be saved in the images folder of the canvas.
Note: the efficiency of the task depends on the computer's power and other factors as the frames' resolution, the chosen antialiasing filter, the area of the fractal that is being calculated in each moment, etc.
When we see the image starting to approach the original point we must be prepared to uncheck the box "Zoom" in the wished moment. Then we must check the box "Iterate" so the image dissolves while continues rotating.
When we see the image disappear we can stop the task with the button "Stop".
PROCESS THE FRAMES
Once all the frames of the animated sequence are generated we must compress them in a video file. EFF has not been designed to that end, that is why a list of useful links to do so has been provided:
This software allows to create a video from a numerated sequence of frames. Open the first image with this software and it will load the complete sequence: VirtualDub
Most recommended video compressing codec right now: x264
Here you will find a tutorial of basic video editing: Tutorial of VirtualDub
This link explains the optimal configuration of the codec in order to get the best results: Tutorial de x264
These are the best sites where you can download right-free tracks to use in your videos: Música libre
These are the video compression recommendations for YouTube: Codification advanced configuration
Once the file is generated the result should be similar to this one: *
* Beware that it loses quality when uploading to YouTube.