TerrainModelFlags

No flags.

The 3D model will be visible in the 3D scene.

This flag controls whether the model will be rendered into the framebuffer.

The 3D model will cast a shadow.

This flag controls whether the model will be rendered into the shadow maps.

The 3D model will receive shadows.

This flag controls whether shadow mapping will be active when rendering the model.

The 3D model will be included in spatial queries.

Perform visibility culling for the model?

Visibility culling uses the IModel.Bounds object, which must be recreated each time the structure or geometry of a 3D model has changed. If a model is updated frequently, this flag can be used to avoid unnecessary computations.

Render the model in wireframe mode?

Use the bounding sphere of the model to expand the Z-range that is used for rendering?

By default, the Z-range for rendering is calculated automatically, based on the distance between the camera and the visible horizon of the terrain. When this flag is present, the Z-range is extended (if necessary) so that it fully contains the bounding sphere of the model.

Since the renderer uses logarithmic Z-buffering, expanding the Z-range extensively is not a problem (e.g. to make it contain the Moon at realistic distance to the Earth).

Shadowing should be disabled when this flag is set, i.e. neither ShadowCaster nor ShadowReceiver should be set. For largely expanded Z-ranges, shadow mapping quality will be reduced significantly.

Forces lighting to be enabled when rendering this model.

By default, lighting is enabled if any of the terrain layers has lighting enabled.

Forces lighting to be disabled when rendering this model.

By default, lighting is enabled if any of the terrain layers has lighting enabled.

The bounds of the 3D model will not be taken into account when computing the extends of the shadow mapping cascades, based on the shadow receivers that are present in the scene.

If a model contains sparse geometry that is distributed over a large area and does not provide a spatial hierarchy, its bounds will be very coarse. This usually reduces quality of shadow mapping. This flag can be used for such models in order to avoid quality loss, at the cost of incorrect shadowing for close-up views of the model. The proper solution is to have models with a proper spatial structure.

All default flags.

All flags.