Equirectangular Viewer

[MJW 1,202]

This plugin displays and reorients equirectangular images. Equirectangular images are panoramic views, which represent a complete spherical image in  longitude-latitude format. The plugin is (perhaps not too sensibly) in the Height Map menu.

 

The plugin DLL (version 1.0.0): Equirectangular Viewer.zip

 

The Help menu description:

Equirectangular Viewer projects an equirectangular image onto the canvas, as if viewed through a window, and also allows the orientation of an equirectangular image to be changed. Normally the width of an equirectangular projection is twice the height, but any image will be scaled to cover the entire sphere

The controls are:

Mode: Specifies the result to display in the canvas. When View Equirectangular Image is selected, the portion of the image within the field of view will be projected onto the canvas. When Transform Equirectangular Image is selected, the image will be transformed into a new equirectangular image, with a different orientation.

Get Image From Clipboard: When selected, the image will be taken from the clipboard instead of the canvas.

Position Specifies View Center: When this option is disabled, moving the View Position control causes the image to move in the same direction. When this option is enabled, the position of the control indicates the location in the image to position at the center of the canvas.

View Position: Specifies the position of the sphere represented by the equirectangular image.
View Rotation: Specifies a counterclockwise rotation angle, in degrees. The rotation is centered at the center of the canvas.

Field of View: In viewing mode, specifies the angular field of view, measured relative to the canvas diagonal.

Sphere Nearness: In viewing mode, specifies the distance to the sphere represented by the equirectangular image. When zero, the sphere is at infinity. Larger values move the sphere closer.

Antialias: Specifies that antialiasing should be used.
Antialias Quality: Specifies the number of samples in each direction per pixel. The total number of samples per pixel is this value squared.

 

Equirectangular images are widely available on the Internet. Here is a small example:

 

This plugin may or may not be useful to anyone. I wrote it mostly to give myself better insight into some aspects of equirectangular images.

The Position Specifies View Center control was added because I wanted the default action of the control to match the similar control in the Texture Shader, but it's sometime useful for the control to specify the region of the map to be located at the center of the final image.

 

 

[Pixey 4,414]

Thank you @MJW I have downloaded this and, hopefully, this will be useful for a project I'm working on

[lynxster4 2,962]

This is really cool @MJW  ?    Here are my examples:

 

Original

 

View Mode

 

Transform Mode

 

I can see this plugin being very useful, especially with the Texture Shader plugin!   Thank you so much!     

 

 

 

 

Edited June 16, 2018 by lynxster4

[Seerose 4,222]

❤️ @MJW! Thank you for your effort. ? ??

 

Original:

 

 

[Seerose 4,222]

[Scooter 233]

I guess my Equirectangular-ness is more of a Circumlocution-ness.  Feeling silly now.

 

ORIGNAL

 

 

Feeble attempt (yes I added the drain cover) 

 

[Eli 1,121]

@MJW Do you know of a tool to create an equirectangular from a regular picture?

[MJW 1,202]

Equirectangular images are actually created from a series of photos that are stitched together. They're like 360° panoramic photos, but more so, since they must also cover up and down. I've never done it, though, and don't know the details of the process. There's a program call Hugin on SourceForge that's designed for that purpose.

[Eli 1,121]

I will try it. Thank you.

[oleole 0]

Hello,

 

I want to edit the tripod of equirectangular images.

If I understand, your plugin doesn't allow editing ?

And if I'm right, would it be possible to create one that allow you to change "the view position", allow edition and save back the image without loss ?

 

Thank you for your input.

 

lamazze

[MJW 1,202]

12 hours ago, oleole said:

If I understand, your plugin doesn't allow editing ?

And if I'm right, would it be possible to create one that allow you to change "the view position", allow edition and save back the image without loss ?

 

I wish I could offer you hope in that regard, since such a feature would be useful, but unfortunately making a version that supports editing sufficient to edit out a tripod, would be a vastly complex task.

[blip 1]

Could try the transform equirectangular image mode to adjust the image so that the area you want to edit is in one area (say view position lower bar to -1.0) then mark out the area you don't want, erase it and fill the area in using something like the content aware fill plugin to edit out the tripod. Or if the content aware fill option takes too long try adding in another image similar to the area you are filling in (making sure its the lower image so not to cover over the main image) onto another layer then merge the two images. After that adjust the image back to its original form then save it might get the results closest to what it sounds like you are looking for (if somewhat time consuming).

Here's a equirectangular pic I did edited from a video I took on holiday once.

Edited August 18, 2019 by blip
To add a picture