Part #2 is designed to help you play around and better visualize what Flexify can do in the creation of stereographic projections from equirectangular panoramic images. This part is specific to changing the FOV (Field Of View) in the Flexify control panel
Let’s start with this image I built in Photoshop.
Basic Grid - ratio is 1:2 (180 x360)
This is the 180×360 panorama image used in the following examples.
Using the same Flexify setting we used in Part#1:
Flexify Setting for a Basic Tiny Planet
Turns the grid into this:
Flexify Result A.
Compare this and the original grid to this example from part#1
Bridge Pano Before and After Flexify
Note that the first two rows of the grid are not even in the grid image. In the bridge image there is very little black sky above the lights at the top of the image. Numbers are smaller at the bottom and bigger near the perimeter of the grid image. The lights and support columns are bigger at the edges and smaller closer to the center.
In order to see more of the sky or top of your image you need to change the FOV (Field Of View). A smaller FOV is like zooming into the image and a large FOV is zooming out to get a wider view. IF I want to see the top row of numbers on the grid I have to zoom out / increase the FOV. Changing the FOV setting from 102 degrees to 144 degrees:
Incresing the FOV (Field of View) / Zooming Out
Now shows the top row of numbers:
Just changing the FOV can dramatically alter the image.
Applying just the FOV change to the bridge image results in this:
Basic Tiny Planet in Flexify with large FOV
That’s a lot of black space for this image. If your base panorama had lots of detail in the first couple rows then you might want a large FOV. In this image a smaller FOV works better.
In the next part, I’ll show what happens when you play with the Lattitude control in Flexify.
