<shaders>
    <shader type="vs">
        <option name="Normal" define="NORMALMAP" />
        <option name="EnvCube" define="ENVCUBEMAP" />
        <option name="LightMap" define="LIGHTMAP" />
        <variation name="" define="AMBIENT" />
        <variation name="1VL" define="NUMVERTEXLIGHTS=1" />
        <variation name="2VL" define="NUMVERTEXLIGHTS=2" />
        <variation name="3VL" define="NUMVERTEXLIGHTS=3" />
        <variation name="4VL" define="NUMVERTEXLIGHTS=4" />
        <variation name="Dir" exclude="EnvCube">
            <define name="DIRLIGHT" />
            <define name="PERPIXEL" />
        </variation>
        <variation name="Spot" exclude="EnvCube">
            <define name="SPOTLIGHT" />
            <define name="PERPIXEL" />
        </variation>
        <variation name="Point" exclude="EnvCube">
            <define name="POINTLIGHT" />
            <define name="PERPIXEL" />
        </variation>
        <option name="Spec" define="SPECULAR" require="PERPIXEL" />
        <option name="Shadow" define="SHADOW" require="PERPIXEL" />
        <variation name="" />
        <variation name="Skinned" define="SKINNED" />
        <variation name="Instanced" define="INSTANCED" />
        <variation name="Billboard" define="BILLBOARD" />
    </shader>
    <shader type="ps">
        <option name="Diff" define="DIFFMAP" />
        <option name="Normal" define="NORMALMAP" require="DIFFMAP" />
        <option name="Packed" define="PACKEDNORMAL" require="NORMALMAP" />
        <option name="SpecMap" define="SPECMAP" require="DIFFMAP" />
        <option name="EnvCube" define="ENVCUBEMAP" />
        <option name="LightMap" define="LIGHTMAP" />
        <option name="AlphaMask" define="ALPHAMASK" require="DIFFMAP" />
        <option name="Ambient" define="AMBIENT" require="PERPIXEL" />
        <variation name="" define="AMBIENT" />
        <variation name="Dir">
            <exclude name="EnvCube" />
            <exclude name="LightMap" />
            <define name="DIRLIGHT" />
            <define name="PERPIXEL" />
        </variation>
        <variation name="Spot">
            <exclude name="EnvCube" />
            <exclude name="LightMap" />
            <define name="SPOTLIGHT" />
            <define name="PERPIXEL" />
        </variation>
        <variation name="Point">
            <exclude name="EnvCube" />
            <exclude name="LightMap" />
            <define name="POINTLIGHT" />
            <define name="PERPIXEL" />
        </variation>
        <variation name="Prepass" define="PREPASS" exclude="EnvCube" />
        <variation name="Material" define="MATERIAL" />
        <variation name="Deferred" define="DEFERRED" />
        <option name="Mask" define="CUBEMASK" require="POINTLIGHT" />
        <option name="Spec" define="SPECULAR" require="PERPIXEL" />
        <option name="Shadow" define="SHADOW" require="PERPIXEL" />
        <option name="LQ" define="LQSHADOW" require="SHADOW" />
    </shader>
</shaders>
