The View Mode combo's button label is the name of the pane's current mode. View mode is set per pane, so the Source and Target panes can each show a different one at the same time.
Modes
A pane starts in Lit, and the mode you leave it in is remembered between launches. None of the entries below carry a tooltip - the label is the only description the app gives for each one.
- Lit
- Unlit
- Wireframe
- Detail Lighting
- Lighting Only
- Light Complexity
- Shader Complexity
- Stationary Light Overlap
- Lightmap Density
- Reflections
- Buffer Visualization
Disable Shadows
A checkbox lower in the same menu, off by default. Tooltip:
"Persistently disable all dynamic shadow casting in the preview viewport. Useful for dense meshes where the shadow pass dominates frame time."
This is independent of which view mode is active - it stays off or on as you switch modes.
Buffer Visualization sub-menu
Below Disable Shadows, a Buffer Visualization sub-menu lets you pick which GBuffer slice to display. Its tooltip:
"Pick which GBuffer slice to display when in Buffer Visualization mode"
Picking any slice in this sub-menu also switches the pane's view mode to Buffer Visualization - you do not need to select that mode separately first. The slices, in menu order, are radio entries with no tooltips of their own:
- Base Color
- Metallic
- Specular
- Roughness
- World Normal
- Ambient Occlusion
- Scene Depth
- Opacity
- Custom Depth