decal_base

In case of enabling the Water Decal option, decals are projected only on the top of the water surface. When the option is disabled, decals are displayed on the meshes overwater and underwater.

Water Decal option is disabled

Water Decal option is enabled

Distance Fade enables smooth fading depending on the distance to the surface where decal is projected. It activates Distance threshold and Distance power

When you enable Angle Fade option, the angle of the surface will have influence of the decal projection. Enabling this option activates Angle threshold and Angle power parameters that allow to modify the angle where the decal shouldn't be projected.

The angle threshold allows you to increase the slope for projecting overlap material. It can even be rendered on surfaces that face downwards.

Normal substitute specifies a rendering mode for normals. By default, normal maps of a base and overlapping material are combined together. with this option enabled, only normals of the overlapping material are used

Normal substitute off

Normal substitute on

The state defines whether to use the B channel of the Shading texture as a specular texture.

The state defines whether to use the A channel of the Shading texture as a microfiber texture.

Enables Screen Projection of the decal instead of projecting it onto a surface.

Enables Auxiliary rendering pass for the material. Can be used for custom post-effects, such as thermal vision etc. Activates the auxiliary texture and parameter.

Enables Parallax states used for providing a convex relief based on a parallax (height) texture.

Enables Detail states used for bringing detalization to the decal material.

Use alpha for blending option indicates whether to use the alpha channel of the detail texture for blending.

3D Texture option indicates whether to use 3D texture for the decal.

Available options are:

• Alpha Blend - blending depends on the alpha channel of the base albedo texture.
• Overlay - depending on the base albedo texture color, the base and detail textures colors are either multiplied (for dark color pixels) or screened (for light color pixels), which leads to the contrast increase while preserving highlights and shadows. Grey pixels are not effected at all. The blending is applied to the first UV coordinates of the mesh.
• Multiply - the base albedo texture color is multiplied by the detail texture color, resulting in darker colors. White pixels are not effected at all. The blending is applied to the first UV coordinates of the mesh.

Apply the parallax shadow effect.

Apply the cutout effect that provides smooth edges between the opaque and transparent areas.

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

• UV - map the texture using the UV coordinates of the mesh.
• World - map the texture using world transformation (the texture is always projected atop).
• Triplanar - map the texture without using UV coordinates of the mesh (textures are projected by using triplanar mapping).

Base option specifies which UV coordinates of the mesh will be used for detail textures.

• UV - map the texture using the UV coordinates of the mesh.
• World - map the texture using world transformation (the texture is always projected atop).
• Triplanar - map the texture without using UV coordinates of the mesh (textures are projected by using triplanar mapping).

Albedo texture indicates the main color of the decal.

Albedo texture applied	Albedo texture applied (another angle view)

Normal texture stores height information required to achieve an effect of Normal Mapping

Normal texture applied	Normal texture applied (another angle view)

Shading texture is a container for four different textures:

• The R channel stores a metalness texture.
• The G channel stores a roughness texture.
• The B channel stores a specular texture.
• The A channel stores a microfiber texture.

Metalness#

Roughness#

Specular#

Specular texture stores the light reflectance information. It defines shininess and a highlight color of the surface.

Notice

To use this channel, enable the Specular Map state.

Specular texture applied	Specular texture applied (another angle view)

Microfiber#

Microfiber texture creates an effect of napped surface.

Notice

To use this channel, enable the Microfiber Map state.

Microfiber texture applied	Microfiber texture applied (another angle view)

Albedo is a multiplier of the base color of the surface provided by the albedo texture.

Albedo is a multiplier of metalness.

Roughness is a multiplier of the roughness of a surface.

Specular is a multiplier for the intensity of highlight provided by the specular texture.

Microfiber is a coefficient to scale the intensity of the microfiber (provided by a microfiber texture). The higher the value, the higher the microfiber texture effect is.

Normal Intensity is an intensity of the relief of the normal texture.

Translucent parameter is a scale of the translucency effect, which permits light to pass through the object, but diffuses it so objects on the opposite side are not clearly visible.

Base textures coordinates transformation.

Material mask - a decal bit-mask. If the material mask of the decal material matches the surface material, the decal will be projected.

Albedo Visibility - a parameter that specifies the influence of the albedo of the decal over the surface material.

Metalness Visibility - a parameter that specifies the influence of the metalness texture of the decal over surface material.

Roughness Visibility - a parameter that specifies the influence of the roughness of the decal over the surface material.

Normal Visibility - a parameter that specifies the influence of the normal texture over the surface material.

Albedo - is a multiplier of the detail color of the surface provided by the detail albedo texture similar to the base texture Albedo parameter.

Metalness - a parameter modifying the size of the highlight of the detail texture similar to the base texture Metalness parameter.

Roughness - a parameter modifying the size of the highlight of the detail texture similar to the base texture Roughness parameter.

Specular - is a color picker to choose the auxiliary specular color for the detail specular texture similar to the base texture Specular parameter.

Microfiber - is a color picker to choose the auxiliary microfiber color for the detail microfiber texture similar to the base texture Microfiber parameter.

Albedo Visible - a parameter that specifies the influence of the detail texture albedo over the base texture albedo.

Metalness Visible - a parameter that specifies the influence of the detail texture metalness over the base texture metalness.

Roughness Visible - a parameter that specifies the influence of the detail texture roughness over the base texture roughness.

Specular Visible - a parameter that specifies the influence of the detail texture specular over the base texture specular.

Microfiber Visible - a parameter that specifies the influence of the detail microfiber texture over the base texture.

Normal Visible - a parameter that specifies the influence of the detail normal texture over the base texture.

Distance Threshold is a coefficient to scale a threshold fade for projected overlap materials. The higher the value, the bigger area is rendered.

Fade threshold =0

Fade threshold =1

Fade threshold =2

Distance Power a coefficient that shows the converse intensity of decal depending on the distance. The lower the power value, the bigger area is rendered.

Fade power =0

Fade power =1

Fade power =2

Angle threshold is a threshold angle value. A coefficient to scale a threshold angle for projected overlap materials. The lower the value, the bigger area is rendered.

Angle Power - Angle fade power, indicates the intensity depending on the angle.

Height is a coefficient to scale the power of the parallax texture displacements. The higher the value, the bigger the normals are.

Min layers parameter specifies the minimum step of the parallax mapping.

Max layers parameter specifies the maximum step of the parallax mapping.

Noise parameter specifies the size of the noise used for parallax mapping. The higher the value, the less visible the layers.

Cutout UV Transform parameter specifies parallax texture coordinates transformation:

• (X, Y) - scale
• (Z, W) - offset.

Min layers parameter specifies the minimum step of the parallax shadows.

Max layers parameter specifies the maximum step of the parallax shadows.

Noise parameter specifies the size of the noise used for parallax shadows. The higher the value, the less visible are the shadow layers.

Intensity parameter specifies the intensity of shadows provided by the parallax effect.

Softness parameter specifies the softness of shadows provided by the parallax effect.

Visibility parameter specifies the visibility scale for parallax shadows.

Visibility Angle parameter controls angle-dependent visibility for parallax shadows.

Visibility Angle Threshold parameter specifies a coefficient to scale a threshold angle for parallax shadows.

Auxiliary color parameter specifies the constant color for the auxiliary pass. It is a multiplier for the auxiliary texture.