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# Interface: dxshadermanager

Interfaces > Core Interfaces > dxshadermanager

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The dxshadermanager Core Interface exposes the DirectX Shader Manager to MAXScript.

    Interface: dxshadermanager

Methods:

    <maxObject>dxshadermanager.getViewportManager <material>material

Returns the viewport manager’s ViewportManagerCustAttrib object for the specified material.

    <boolean>dxshadermanager.IsVisible()

Returns true if the manager is visible.

    <float>dxshadermanager.SetVisible <boolean>show

This method can be used to turn the manager on and off. It will not have an effect if the user is running in DirectX mode.

    <maxObject>dxshadermanager.addViewportManager <material>material

Adds a new viewport manager to the specified material and returns the ViewportManagerCustAttrib object providing an interface to access its effects.

EXAMPLE:
     -- Create a new standard material
    newmat = StandardMaterial()
    -- Get the viewport manager from the material
    manager = DXShaderManager.getViewportManager newmat
    -- If there is no manager, assign a new one
    if (manager==null) then manager = DXShaderManager.addViewportManager newmat
    -- Get the active viewport effect
    effect = manager.getactiveviewporteffect()

    -- If there is no active effect, create a new one.
    if (effect == null) then
    effect = manager.setviewporteffect 1
    -- 1 in our case is the lightmap, 0 sets it to "none" -- Set the LightMap file names
    effect.lightmap_filename = GetDir(#image) + "\\testlightmap.bmp"
    effect.diffuse_filename = GetDir(#image) + "\\testdiffuse.bmp"

    -- set the mapping channel to use
    effect.lightmap_mapping = 1
    effect.diffuse_mapping = 1
    -- Search for the effect based on name  -- Get the total number of effects:
    num = manager.getNumViewportEffects()
    -- Step through all effects and check for name. If found, -- then activate it.
    for i = 1 to num do
    (
    if (manager.getViewportEffectName(i) == "LightMap") then effect = manager.setviewporteffect i
    )

#### See Also

- CubeMap : ReferenceTarget

- LightMap : ReferenceTarget

- Membrane Shader : ReferenceTarget

- Metal Bump : ReferenceTarget