Channel View
Channel View shows the segment of dome surface covered by (as ‘seen’ by) a single channel:
Note that the channel dimensions are reflected in the bottom status bar of the view. The RESET button restores channel dimension defaults.
Interactive view
It’s best to view the dome in Interactive mode, moving the interactive view to be from beneath the dome, looking up to see the whole dome surface. Use the mouse controls shown, to drag the model (or click on the mouse arrows) and manipulate the view.
Mouse controls:
•Left-click + drag : pan and tilt the whole mesh
•Right-click + drag : shift the whole mesh
•Centre-click + drag : zoom
•Shift+left + drag : spin the mesh around a set point in 3D space
Note that the current interactive viewpoint is reflected in the bottom status bar. The Edit button allows you to save and name viewpoints and return to them:
X, Y, Z, Azimuth and Elevation are from the current view, and can be further adjusted here. Field of view is saved from the current view.
If you want to see the origin of the frustum (which is the projection point location), press the *Draw button, select Frustum > Lines, or select ‘projectors visible’, if that is helpful.
Preview Setup and View
To view a spherical dome projection correctly requires a square format. Set this as a custom format in Configure > Preferences > Preview Window.
The Preview Setup button enables you to manipulate the viewpoint of the Preview window:
A reference grid can be overlaid on the preview and (below) playback window, selectable in degrees of separation (the number you enter is degrees between the lines) and visual intensity in percent. Enter settings where circled in red above, and toggle the grid on and off with the toolbar icon.
Playback Window
In Channel Mode in DeltaGUI, the playback window will display the channels arranged according to how the graphics cards are configured. This will normally be each channel side by side (see Output Setup), unless the graphics card has been set up in a x × y matrix.
In Interactive mode, the playback window will display the dome from the DeltaGUI viewpoint, and as you drag or move this in the DeltaGUI window, it will follow in the playback window. Alternatively, the playback window image itself can be dragged around with the mouse directly.
The composite illustrations below show the how the grid appears, when superimposed on the image, in each mode (left: channel mode, right: interactive). Blends and warps between channels are not shown in the playback window.
Fisheye image credit: NSC Creative: from ‘We Are Stars’