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Rendering-Related Classes

terrain_base

A terrain_base material is a default material for terrain objects. Via this material you can manage different options for terrain optimization and control the post processing for terrains.

Terrain has a quite different material system in comparison to usual Unigine materials. You should specify the most of terrain textures via the Nodes tab (see the Terrain Materials article for details).

States#

The terrain_base material has the following Options and Post processing states.

States

Material Editor, States tab.

Options#

Specify the following rendering options:

  • Auxiliary - enables an auxiliary option and an ability to use auxiliary texture.
  • Ambient occlusion - enables an ambient occlusion texture and parameters.
  • Invert occlusion - inverts AO occlusion map influence on albedo.
  • Subtract materials - subtracts invisible materials inside every layer and draw only visible ones - helps to increase performance on terrains with plenty of blended materials.
    Notice
    May cause performance drop on terrains with small amount of materials.
  • Subtract layers - subtracts invisible parts of layers and draw visible parts of their materials. May cause some graphical artifacts in sorting order of detail materials, but make a big performance boost.
  • Material detail - enables detail terrain materials.
  • Material roughness - enables terrain materials roughness calculation.
  • Material normal - enables terrain materials normal calculation.

Post Processing#

  • SSAO - enables SSAO (screen-space ambient occlusion) post for terrain.
  • SSR - enables SSR (screen-space reflections) post for terrain.
  • SSS - enables SSS (sub-surface scattering) post for terrain.
  • DOF - enables DOF (depth of field) for terrain.
  • Motion blur - enables motion blur for terrain.
  • Sun Shafts - enables sun shafts for terrain.

Textures#

Textures

Material Editor, Textures tab.

Ambient Occlusion#

Ambient occlusion (AO) texture modulates the global environment illumination.

Notice
Ambient occlusion texture slot is available if a Ambient occlusion option is enabled.

Auxiliary#

Auxiliary texture that used for auxiliary rendering pass.

Notice
Auxiliary texture slot is available if a Auxiliary option is enabled.

Parameters#

Parameters

Material Editor, Parameters tab.

Material Mask#

Material mask parameter specifies material bit-mask.

Base Parameters#

Base parameters have influence on the all corresponding terrain textures.

  • Albedo - a color multiplier for the albedo texture.
  • Roughness - is a multiplier of the terrain roughness.
  • Microfiber - is a coefficient to scale the intensity of the terrain microfiber
  • Normal intensity - is an intensity of the relief of the normal map.

Options Parameters#

  • Auxiliary - a color multiplier for the auxiliary texture.
  • Occlusion on Albedo - occlusion influence on albedo texture.
Last update: 2019-04-30