urho3d/SourceAssets/HLSLShaders/LitParticle.xml

<shaders>
    <shader name="LitParticle" type="vs">
        <option name="VCol" define="VERTEXCOLOR" />
        <variation name="Dir" define="DIRLIGHT" />
        <variation name="Spot" define="SPOTLIGHT" />
        <variation name="Point" define="POINTLIGHT" />
        <option name="" /> <!-- Dummy option to separate the two variation groups -->
        <variation name="" />
        <variation name="Skinned" define="SKINNED" />
        <variation name="Instanced" define="INSTANCED" require="SM3" />
        <variation name="Billboard" define="BILLBOARD" />
    </shader>
    <shader name="LitParticle" type="ps">
        <option name="Diff" define="DIFFMAP" />
        <option name="AlphaMask" define="ALPHAMASK" require="DIFFMAP" />        
        <option name="VCol" define="VERTEXCOLOR" />
        <option name="Ambient" define="AMBIENT" />
        <variation name="Dir" define="DIRLIGHT" />
        <variation name="Spot" define="SPOTLIGHT" />
        <variation name="Point" define="POINTLIGHT" />
        <option name="Mask" define="CUBEMASK" require="POINTLIGHT" />
    </shader>
</shaders>