Environment Settings
Use procedural Sky, Color backgrounds, IBL rotation, sun and haze controls, and understand current Custom HDR limits in Tridi Viewer 1.4.
Applies to Tridi Viewer 1.4.0 release. Release notes
Environment modes
Environment Settings controls the visible background and scene lighting used around the current model.
| Mode | Visible background | Lighting |
|---|---|---|
| Sky | Procedural atmosphere | Procedural reflection lighting plus direct sun |
| Color | Solid background color | Loaded image-based lighting with adjustable intensity and rotation |
| Custom HDR | Loaded custom environment when available | Loaded custom image-based lighting |
Procedural Sky
Sky mode generates an Earth-like atmosphere for both the visible background and scene reflections. The Environment panel exposes Sun Azimuth, Elevation, Intensity, Angular Size, Halo Size, Halo Falloff, Haze, Bloom, and Lens Flare controls.
Haze affects both the atmospheric appearance and distant-scene fog. Changing sun direction or haze can require the procedural environment to regenerate, so these controls can cost more than rotating a preloaded IBL.
Color and IBL rotation
Color mode keeps a simple solid background while the loaded environment continues to light the model. Adjust IBL intensity and horizontal rotation to change reflection direction without replacing the background color.
The viewport environment-rotation gesture and Environment Settings use the same horizontal orientation value.
Custom HDR status
Custom HDR exists in the 1.4 development baseline as a reserved/import-backed environment path. Existing loaded environment resources can use it, but the dedicated user-facing HDR/EXR picker and import workflow is not complete yet.
Because that workflow is still incomplete, the pricing page does not promise general Custom HDR import as a finished 1.4 feature.
Projects and startup presentation
Environment settings can be stored with a native .tridi project. Tridi Plus can also include model-independent environment presentation in Save Current as Startup so a preferred Sky or Color setup can be restored at launch.