# Building Materials
The material settings is where the maps making the Sub-Layers's Material are set.
Each option will be shown separately below, featuring the Scalability and Mobile toggles/features if present but won't be discussed in this page.
Please see [scalability-options](https://sylvl.gitbook.io/panoramake-release/scalability-and-cross-platform-development/scalability-options "mention") to learn more about the Scalability toggles, and [unified-cross-platform-development](https://sylvl.gitbook.io/panoramake-release/scalability-and-cross-platform-development/unified-cross-platform-development "mention") for the Mobile|VR switches.
{% hint style="info" %}
Some of these parameters work in the same way as on the [Master Surfaces Shaders](https://www.unrealengine.com/marketplace/en-US/product/p-n-p-master-surfaces-shaders-ue5-compatible). \
**As such, some links to the MSS Documentation will be present instead of a detailed description.**
{% endhint %}
For most options, a  button is available next to the option's name. \
**Clicking it will allow you to restore the default values for it.**
### Sub-Layer Material Settings
Exclude Sub-layer from Caching
*Enabled only if the Sub-Layer is uncached.*
* Excludes this layer from caching. \
See [Landscape Caching](https://sylvl.gitbook.io/panoramake-release/setting-up-instance/landscape-caching-for-better-performance) for more information.
Use Texture Atlasses
*Visible only on MULTI Instance mode.*
\
\
Enables the use of Atlasses textures to reduce the number of texture samplers used if many Sub-Layers are used across multiple BIOMES.
Should be toggled only **if absolutely necessary**, as it has a big performance impact that is not justified unless the Instance crashes due to the number of Texture Samplers !
* Clicking on "Refresh Biome Atlasses" will fully refresh the Texture Arrays with all textures set in the Biome. It may be necessary if a texture shown using atlasses isn't the same as shown without.
[ES3.1] Use Sub-Layer on Mobile
*Visible only with* [*Unified Cross-Platform*](https://sylvl.gitbook.io/panoramake-release/scalability-and-cross-platform-development/unified-cross-platform-development) *enabled.*
* See [Sub-Layer on Mobile](https://sylvl.gitbook.io/panoramake-release/scalability-and-cross-platform-development/unified-cross-platform-development/all-switches-and-features-for-es3.1#use-sub-layer-on-mobile) in [all-switches-and-features-for-es3.1](https://sylvl.gitbook.io/panoramake-release/scalability-and-cross-platform-development/unified-cross-platform-development/all-switches-and-features-for-es3.1 "mention").
### Sub-Layer Texture Settings
UV Tiling
* [Scales the texture map tiling on the terrain.](https://sylvl.gitbook.io/untitled/guide/global-settings#uv-scale)
Distance-Based UV Scaling
* When enabled, samples the texturing at a different UV Scaling and shows it when the player is at a certain distance of the surface. Useful for keeping "crisp" materials far away like rock surfaces.
* If the second distance is toggled, an additional layer of different UV Scaling will be used at set values.
In the example below, a version of the current Material with a UV Scale of 2.5 will be shown starting from the distance of 6000 units on top of the normal Material.
Break UV Tiling
* [Samples the texture differentely to break texture repetition. Settings are the same as on the Master Surfaces Shaders.](https://sylvl.gitbook.io/untitled/guide/global-settings#uv-breaking)
Triplanar Mapping
* [Reduces texture deformation on stretched surfaces like high terrain spikes.](https://sylvl.gitbook.io/untitled/guide/global-settings#triplanar-mapping) \
[Smoothness changes the transition's smoothness.](https://sylvl.gitbook.io/untitled/guide/global-settings#triplanar-mapping)
Parallax Occlusion Mapping
*Unavailable if Break UV Tiling is enabled, or if the Layer is cached.*
* [Uses a heightmap to simulate depth.](https://sylvl.gitbook.io/untitled/guide/global-settings#parallax-occlusion-mapping)
Specular Settings
* Uses a channel of the Base Color as the specular output. \
The value is a cap as natural landscape aren't surfaces with a lot of specularity.
### Texture Maps Input
Base Color
* Base Color slot of the Material
* If "Use Uniform Color" is checked, a uniform color will be used instead of a texture map. The color can be changed by clicking the Uniform Color thumbnail.
* **Texture Adjustements are available below :**
* Hue Shift (from 0 to 360)
* Saturation (Values under 0 to desaturate, over 0 to saturate)
* Contrast
* Luminosity (0 for black, 1 by default, more than 1 to increase lightness)
* Tint (Color)
Normal Map
* Normal Map slot of the Material
* **Texture Adjustements are available below :**
* Regular Flatness (1 for full flat, values under 0 to increase normal strength)
* Distance 1 & 2 Flatness available when Distance-Based UV Scaling is enabled
* Reverse Normal can be checked for inverting the Map
ORM Values
* Occlusion/Roughness/Metallic slot of the Material
* Packed "ORM" Texture can be enabled/disabled, but should **always be used for optimization purposes if more than 1 map is used** for any of the ORM channels.
* If Uniform Roughness/Metalness is checked, the texture won't be used and an uniform value will be used.
* If "Use Occlusion Map" is checked, the Occlusion map will be multiplied with the Color and Specular values following the Occlusion map adjustement options.
* **Texture Map & Settings are available if a Texture Map is used for any of the channels instead of uniform values :**
* Each map can be selected (if "Use Packed "ORM" Texture" is disabled.)
* Contrast & Luminosity adjustement are available for each, except Metalness as a Texture map should be avoided as much as possible for performance reasons.
* Metalness is present if need be but affects the shader complexity and is not cacheable !
Using a metalness map will need the processing of the affected sub-layer to be done **even if it's cached, so it should be always set to Uniform Value except for special cases** !
Use Displacement
[*Visible only with a Studio license.*](https://sylvl.gitbook.io/panoramake-release/introduction/licenses-differences)
* Displacement slot of the Material
* If enabled, displaces a Virtual Heightfield Mesh or the Landscape if Nanite Tessellation (5.4+) is enabled. \
If it is, a Nanite Strength option will be visible ranging from 1 to 0.\
See [Adding Displacement](https://sylvl.gitbook.io/panoramake-release/setting-up-instance/adding-displacement) for more informations.
* The Texture is contrasted **before** the Force setting.
* The texture used for the Displacement can be a Texture, the last channel of the ORM Map ("Use ORD Texture Format" as featured on some Megascans maps) or the Alpha channel of the Base color.