Materials Overview

A material is a .mat text file that defines a two-dimensional surface. It contains all of the information needed for HPL3 to simulate the surface visually, aurally, and physically.
The main attributes of a material are:

• Material Type
• Corresponding Physics Material
• Texture Units
• Material Variables

HPL3 Material are created and edited using the Material Editor.

Tip: .mat files can be opened directly with the material editor application, if you set it as the default app in your computer's settings.

Example

<Material>
    <Main BlendMode="Add" DepthTest="true" ForceFullScaleTextures="true" PhysicsMaterial="Bed" Type="soliddiffuse" UVSubDivs="1 1" UseAlpha="false" />
    <TextureUnits>
        <Diffuse AnimFrameTime="1" AnimMode="None" AnimStartTime="0" Compress="false" File="textures/detail/algae_detail.dds" MipMaps="true" Type="2D" Wrap="Repeat" />
    </TextureUnits>
    <SpecificVariables>
        <Var Name="HeightMapScale" Value="0.05" />
        <Var Name="HeightMapBias" Value="0" />
        <Var Name="IlluminationBrightness" Value="1" />
        <Var Name="FrenselBias" Value="0.2" />
        <Var Name="FrenselPow" Value="8" />
        <Var Name="AlphaDissolveFilter" Value="false" />
        <Var Name="DissolveLayer" Value="0" />
        <Var Name="DetailUvMul" Value="4 4" />
        <Var Name="DetailWeight_Diffuse" Value="1" />
        <Var Name="DetailWeight_Specular" Value="1" />
        <Var Name="DetailWeight_Normal" Value="1" />
        <Var Name="DetailFadeStart" Value="5" />
        <Var Name="DetailFadeEnd" Value="10" />
        <Var Name="SwayActive" Value="false" />
        <Var Name="SwayForceFieldAffected" Value="true" />
        <Var Name="SwayFreq" Value="1" />
        <Var Name="SwayAmplitude" Value="0.1" />
        <Var Name="SwaySpeed" Value="1" />
        <Var Name="SwayOctaveMuls" Value="0.125 0.25 1" />
        <Var Name="SwayForceFieldMul" Value="0.3" />
        <Var Name="SwayForceFieldMax" Value="0.6" />
        <Var Name="SwayYFreqMul" Value="0" />
        <Var Name="SwaySingleDir" Value="false" />
        <Var Name="SwaySingleDirVector" Value="0 0 1" />
        <Var Name="SwaySingleSampleVector" Value="1 0 0" />
        <Var Name="LiquidTrickleColor" Value="0 0 0 1" />
        <Var Name="LiquidTrickleSpecular" Value="0 0 0 0" />
        <Var Name="LiquidTrickleLoopFade" Value="false" />
        <Var Name="LiquidTrickleFadeSpeed" Value="0.5 0.5" />
        <Var Name="LiquidTrickleEdgeSize" Value="0.5" />
        <Var Name="LiquidTrickleDryness" Value="0.5" />
        <Var Name="LiquidTrickleBlendMode" Value="Alpha" />
    </SpecificVariables>
</Material>

Finding Materials

.mat files can be found in several locations:

• Inside a sub-folder under the /textures folder of the game.
• Inside a sub-folder under the /static_objects folder of the game.
• Inside a sub folder under the /entities folder of the game.