Menu File > Export instant loading scene file

Export instant loading scene file is available only in ContextCapture Center Edition. See Software Editions.

For very large datasets (with several hundred tiles), the default scene structure is not suited for efficient 3D visualization: loading and display performances may be affected, especially on the web.

Exporting instant loading scene file allows to generate an instant loading scene format including additional data and specific motion constraints which are suited for very large dataset visualization.

The exported scene file integrates a symbolic representation of tiles which is used before their actual loading, a specific LOD structure, and motion constraints on viewing angle and height.

3D visualization of an instant loading scene file (at the beginning of loading).

This tool is suited only for scenes composed of a 2D tiling with a large number of tiles (typically >50).

Exporting instant loading scene file

Output file

Enter the name of the new S3C scene file to create.

The output file must be saved in the same directory as the input scene.

Options

Skip lowest LOD

Define the lowest level-of-detail to use for the representation.

Skipping lowest LODs allows to optimize loading time of relevant levels (and to avoid display of irrelevant simplification levels that may affect perception of model quality).

Warning: ignoring too many LODs may affect display performance.

The starting LOD must be set according to the available level-of-details in scene tiles (eg. L16 corresponds to the file "Tile_+000_+000_ L16 _00.a3d"). See also About LOD naming convention.

Disable this option to use the lowest level-of-detail available.

Minimum height constraint

Motion constraint on the minimal height of the camera.

A minimum height allows to forbid close-up views that may highlight insignificant details.

Distance/angle constraints

Specific navigation constraints can be enabled to limit the allowed range of viewing distance and viewing angle, in order to avoid displaying too much data at a time, and hence to ensure optimal performance.

Enter the minimum scene height to consider in the input model, and the maximum viewing distance to adjust the motion constraint, it also impacts the distance threshold for displaying a symbolic representation of tiles.

Known limitations: display policy and motion constraints of instant loading scene files are not suited for areas including large variations in relief.