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{{toc-right}} '''<code>$envmapmask</code>''' defines a specular mask, which affects how strongly each pixel of a material reflects light from the [[$envmap]]. The mask should be a greyscale image in which entirely reflective areas are white and entirely matte areas are black {{warning|<code>$envmapmask</code> will not work in model materials using <code>[[$bumpmap]]</code>. See [[#Alternative_methods]].}} ==VMT syntax example== $envmapmask <texture> [[VertexLitGeneric]] { [[$envmap]] env_cubemap '''$envmapmask "props/tvscreen_test"''' } ==Additional parameters== [[Image:Scanner mask.jpg|thumb|[[npc_cscanner]]'s mask.]] ; <code>$envmapmasktransform <matrix></code> : Adjusts [[UV map]]ping of the specular mask. : DirectX 8 and below use <code>$envmapmaskscale</code> instead. {{VMT UVtransform}} ; <code>$envmapmaskscale <[[float]]></code> : Scales the specular mask by the given value. : See also <code>$envmapmasktransform</code>, above. : Requires DirectX 8. ; <code>$envmapmaskframe <[[integer]]></code> : The frame to start an animated specular mask on. ==Alternative methods== Rather than creating a whole new texture just for a specular mask, you can use the alpha channel of either the <code>[[$basetexture]]</code> or <code>[[$bumpmap]]</code>. Note that this unfortunately ''won't'' reduce the overall amount of data on-disk or in-memory. If you do use these commands, transformations and other such parameters applied to the base texture/bump map will also apply to the specular mask. ; <code>$basealphaenvmapmask <bool></code> : Use the alpha channel of <code>[[$basetexture]]</code> as the specular mask. :''When putting your specular map in the alpha channel you will have to invert it, or else it will work the wrong way round.'' ; <code>$normalmapalphaenvmapmask <bool></code> : Use the alpha channel of <code>[[$bumpmap]]</code> as the specular mask. : ''This must be used if the model material has a bump map.'' ==See Also== * [[$basetexture]] * [[$envmap]] (environment map) * [[$phong]] (diffuse reflection) * [[$selfillum ]] [[Category:List of Shader Parameters|E]] [[Category:VMT Reflections]] [[Category:VMT Texture Reference]]

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