As an engineer working with multiple solutions, or comparing multiple variables, it is quite useful to be able to compare images side by side, but also animations side by side. Image comparison side by side is quite easily done with Word, or Powerpoint, or even image viewers. However, the comparison of multiple animations in a side by side layout is not quite so straight forward. Sure, there are probably some fancy, and/or expensive options out there for video editing, but there is a simpler solution —- EnVe from EnSight.
Given two animations of equal length (number of frames), EnVe’s multiple tiled movie format (.mtm) can be utilized to place two animations side by side, and a new single animation created.
Here are two example animations:
Case 1 AVI
Case 2 AVI
These two animations are each 826 pixels in X, and 574 pixels in Y, and each are 30 frames. In this example of side-by-side, both animations should be the same height (but could vary in width). You can also place the animations one on top of the other, in which case you’d want to have the animations the same width, but could vary each heights.
A Simple “Multiple Tiled Movie Format” file (.mtm) contains information about how to arrange these two animations together. Here is what that file looks like:
# This is a Multi-Tile Movie file.
fullresolution 1652 574
imageoffset 0 0
imageoffset 826 0
You can see above that we set the total number of movies, and the total dimensions of the two movies together (1652 x 574). For each movie, you can therefore set the offset (from the lower left corner). Movie #1 will have a zero offset in X and Y, while Movie #2 will be offset by 826 pixels in X.
You can read this .mtm file into EnVideo, and view a live playing of two animation files, or you can read the .mtm file into EnVe, and simply save out a new single animation file which will have both animations playing side by side. This works great to control the comparison of different models, results, or different variables from separate single animations. Given the flexibility of the .mtm file, you can tile many animations together to make a multiple animation comparison easily and without cost.
Please see below a link which has the animation files, mtm file, and the combined movie example.
Multiple Animation Example
Please see the attached PDF file for similar other operations that can be performed using EnVe… Using EnVe to Create a Single Movie from Existing Movies that Play Simultaneously