About-Updating-Legacy-Rendering-Objects-and-Settings

About Updating Legacy Rendering Objects and Settings

    About Updating Legacy Rendering Objects and Settings

    Legacy drawings containing AutoShade content and rendering settings need to be updated
    to be usable when rendering the model to an image.

    Converting Legacy Lights and Materials

    Drawings created with AutoCAD 2007-based products and earlier might contain legacy
    AutoShade information pertaining to lights and materials. The lights and materials
    used in these older drawings can be converted to work in AutoCAD 2008-based products
    and later.

    When the 3DCONVERSIONMODE system variable is set to a value of 1, lights and materials
    are automatically converted when opening an older drawing. Lights can also be manually
    converted using the CONVERTOLDLIGHTS command, while the CONVERTOLDMATERIALS command
    can be used to manually convert old materials.

    Starting with AutoCAD 2016-based products, the rendering engine only supports photometric
    lighting. Drawings created with AutoCAD 2015-based products and earlier might need
    to be updated before they will render correctly in the latest release. Photometric
    lighting can be enabled by setting the LIGHTINGUNITS system variable to a value of
    1 or 2. If the LIGHTINGUNITS system variable was set to a value of 0 in an earlier
    release, you might need to adjust the intensity factor for the user-defined lights
    placed in a drawing and possibly modify the materials attached to the 3D objects in
    the model to get the desired lighting effects.

    Handling Scene and Camera Blocks

    Drawings created with AutoCAD 2007-based products and earlier might contain legacy
    AutoShade information pertaining to landscape, scene, and camera blocks. Camera blocks
    should be converted automatically to named views and camera objects. Landscape and
    scene blocks are not migrated forward to newer releases of the product. Landscape
    can be added to a model using third-party add-ins, but scene information must be recreated
    with the available rendering settings and objects.

    Managing Legacy Rendering Settings

    The settings used by the rendering engine in AutoCAD 2008-based products through AutoCAD
    2015-based products were stored as named render presets in a drawing file. A named
    render preset could then be set current prior to rendering or plotting a model view.
    Starting with AutoCAD 2016-based products, a new rendering engine was implemented
    and it requires the use of different render settings; these settings can also be stored
    in a named render preset. The named render presets from AutoCAD 2015-based products
    and earlier are maintained for backwards compatibility, but cannot be used with the
    rendering engine in the latest release.

    Learning AutoCad

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