关于VR边纹理材质的渲染

fn YY_edgestex =
(
    vr = renderers.current
    case of
    (
        (vr材质 != undefined) : (mat = vr材质())
        (vr_材质 != undefined) : (mat = vr_材质())
        (VRayMtl != undefined) : (mat = VRayMtl())
    )
    mat
    mat.diffuse = color 255 255 255
    case of
    (
        (VR边纹理 != undefined):(mat.texmap_diffuse = VR边纹理())
        (VR_边纹理 != undefined):(mat.texmap_diffuse = VR_边纹理())
        (VRayEdgesTex != undefined):(mat.texmap_diffuse = VRayEdgesTex())
    )
    mat.texmap_diffuse.pixelWidth = 0.5
    mat.texmap_diffuse.edgesColor = color 0 0 0
    vr.options_overrideMtl_on = true
    vr.options_overrideMtl_mtl = mat
)