decal_terrain_hole_base

A decal_terrain_hole_base material creates holes in Global Terrain using decals.

Prior Knowledge

This article assumes you have prior knowledge of the following topics. Please read them before proceeding:

Materials settings
mesh_base material states, textures, parameters
decal_base material states, textures, parameters

Options

Jitter Transparency

Jitter transparency enables creating deferred transparency by using jittering. When enabled, a dither pattern is used for transparency imitation.


Jitter Transparency disabled	Jitter Transparency enabled

Only Touched Lods

Only touched Lods indicates whether the decal cuts out the surface of all terrain LODs or of only those ones with which it intersects.

UV Mapping

Base

Base option specifies which UV coordinates of the mesh will be used for base texture.

UV - map the texture using the UV coordinates of the mesh.
World - map the texture using world transformation (the texture is always projected atop).

Textures

Materials editor, Textures tab.

Base Textures

Mask

Mask texture defines areas of holes in a TerrainGlobal object. Only R channel is used:

White pixels indicate that the area of a TerrainGlobal object will be transparent.
Black pixels indicate that the area of a TerrainGlobal object will be visible.


Mask texture applied	Mask texture

All of the parameters have set default values, which can be replaced by your own ones.

Base Parameters

Materials editor, Parameters tab.

UV Transform

Base texture coordinates transformation.

Transparent Multiplier

Transparent multiplier is a multiplier of mask's colors. The higher the value, the darker pixels of mask are holes.

For this mask texture, results of Transparent multiplier usage with Jitter Transparency disabled are the following:


Transparent multiplier = 0.5; Transparent pow = 1.0	Transparent multiplier = 1.0; Transparent pow = 1.0	Transparent multiplier = 1.5; Transparent pow = 1.0

Jitter Transparency enabled:


Transparent multiplier = 0.5; Transparent pow = 1.0	Transparent multiplier = 1.0; Transparent pow = 1.0	Transparent multiplier = 1.5; Transparent pow = 1.0

Transparent Pow

Transparent pow is a power of mask's colors. The higher the value, the less contrast the mask.


Transparent pow = 0.01; Transparent multiplier = 1.0	Transparent pow = 1.0; Transparent multiplier = 1.0	Transparent pow = 2.0; Transparent multiplier = 1.0

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See Also

States