Add Camera Reader

[SBlokhuizen]

This adds a new reader, the Camera Reader, to visualize the camera sightlines of camera_ir and camera_visible. This includes the option to match the ParaView camera with a selected camera, and get a point of view visualization of what the camera is seeing.

[paulotex]

tested and working for me.

One request though:
When selecting the camera to snap the view, is it possible to mark the frustum in any way? Perhaps change the line color, or increase the thickness? For example, change the color to one of these:

[SBlokhuizen]

tested and working for me.

One request though: When selecting the camera to snap the view, is it possible to mark the frustum in any way? Perhaps change the line color, or increase the thickness? For example, change the color to one of these:

Hi @paulotex, I have tried to implement this but I cannot find a nice way to do it. The issue is that the readers just provide the VTK data for ParaView to display, how ParaView renders this (e.g. color / line width) we don't have much a control over from the plugin side.

A workaround I have found is to attach an integer (0 or 1) to the camera data to flag the active selection. You would need to select this ActiveCamera array in the coloring properties though. What do you think of this solution?

Screencast.From.2026-04-09.17-31-12.mp4

[maarten-ic]

Couple of comments. Please have a look and let me know if you'd like to discuss any.
GH also indicates there's a merge conflict, can you have a look at that as well?

Thanks!

[paulotex]

A workaround I have found is to attach an integer (0 or 1) to the camera data to flag the active selection. You would need to select this ActiveCamera array in the coloring properties though. What do you think of this solution?

Thanks, this would work. However, it now duplicates some of the functionality of the Multiblock Inspector. So I think we can leave this feature for now and we can point the user to the multiblock inspector, if they need to highlight a camera.

[maarten-ic]

Two minor comments. Can you have a look at the Merge conflicts as well?

Thanks!