Revista do CD-ROM 101/CD-ROM 101.iso/compl/maya5ple/Install_MayaPLE5_English.exe/Maya/Data1.cab/createAndAssignShader.mel

Text File | 2003-07-17 | 4.6 KB | 156 lines

// Copyright (C) 1997-2002 Alias|Wavefront,
// a division of Silicon Graphics Limited.
//
// The information in this file is provided for the exclusive use of the
// licensees of Alias|Wavefront.  Such users have the right to use, modify,
// and incorporate this code into other products for purposes authorized
// by the Alias|Wavefront license agreement, without fee.
//
// ALIAS|WAVEFRONT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
// INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
// EVENT SHALL ALIAS|WAVEFRONT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
// CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
// DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
//
//
//  Alias|Wavefront Script File
//  MODIFY THIS AT YOUR OWN RISK
//
//  Creation Date:  Oct 6, 2000
//  Author:         cg prod spec
//
//  Description:
//      This script creates menu items to add shaders to an object.
//

global proc showShadingGroupAE(string $shader)
//
//    If the option to show the attribute editor is on, then
//    display the attribute editor for the object $shader.
//
{
    if (`optionVar -q AEpopupWhenCreatingShaders`) {
        string $cmd = ("showEditor " + $shader);
        evalDeferred -lowestPriority $cmd;
    }
}

global proc createAndAssignShader (string $type, string $item)
//
//    Create a shader of the given type and assign it to the
//    given object.
//
//    $type = type of shader
//    $item = object to act on, if empty then use the selection list
//
{
    string $objs[];
    string $assignString = $item;
    if ($item == "") {
        // No object was specified in the call to this procedure, so we will
        // assign the shader to whatever is on the current selection list
        // instead.
        //
        $objs = `ls -selection`;
        $assignString = "the selected objects";
    }
    else
    {
        //
        // The $item is always an object, never a component (ie face).
        // If the current selection contains faces of the specified item, then
        // we would rather assign the new shader to the specifically selected
        // faces rather than the object as a whole. In particular, this allows
        // users to select faces of a poly object and use the RMB menu to
        // assign shaders to them.
        //

        string $selection[] = `ls -selection`;
        int $i;

        for ($i = 0; $i < size($selection); $i++)
        {
            if (`match ($item + "\\.f\\[.*\\]") $selection[$i]` != "")
            {
                // One part of the currently selection is faces of the
                // specified item. We will add the selected faces to the list
                // of objects to which the shader will be assigned.
                //
                $objs[size($objs)] = $selection[$i];
                $assignString = ("the selected faces of " + $item);
            }
        }

        if (size($objs) == 0)
        {
            // Try again with the shape. Face selection will be names
            // after the shape when other shapes are parented below the
            // transform.
            string $shapes[] = `listRelatives -s $item`;
            if (size($shapes) > 0 )
            {
                string $shape = $shapes[0];
                for ($i = 0; $i < size($selection); $i++)
                {
                    if (`match ($shape + "\\.f\\[.*\\]") $selection[$i]` != "")
                    {
                        $objs[size($objs)] = $selection[$i];
                        $assignString = ("the selected faces of " + $shape);
                    }
                }
            }
        }

        if (size($objs) == 0)
        {
            // There were no faces of the specified item in the current
            // selection. Therefore, we will assign the shader to the entire
            // object specified.
            //
            $objs[0] = $item;
        }
    }

    $material = `shadingNode -asShader $type`;
    $sg = `sets -renderable true -noSurfaceShader true
                -empty -name ($material + "SG")`;

    // Connect the material to the shading group
    //
    defaultNavigation
        -connectToExisting
        -source $material
        -destination $sg;

    // Select the items to which the shading group is to be assigned.
    //
    select -r $objs;

    // Assign the shading group to the selected objects.
    //
    if( $type == "oceanShader" ){
        connectAttr -f ($material + ".displacement") ($sg + ".displacementShader");
        connectAttr -f "time1.outTime" ($material + ".time");
        assignOceanShader $sg;
    } else {
        hyperShade -assign $sg;
    }
    if( $type == "fluidShape" ){
        connectAttr -f "time1.outTime" ($material + ".currentTime");
    }

    print ("// Result: Created " + $type + " shader and assigned to "
        + $assignString + ". //\n") ;

    showShadingGroupAE($sg);

//    string $state = `menuItem -q -cb attrEdPopupItem`;
//    if ($state == 1)
//    {
//        string $cmd = ("showEditor " + $sg);
//        evalEcho $cmd;
//    }
}