v5.0
パラメータがインスタンス値であるか（true）かないか（false）を示すBoolean値を戻します。インスタンスパラメータは、共有できるオブジェクトに属するパラメータで、共有される場所では一意の値を取ります。
インスタンス値には、ImageShader.tspace_id、Material.ImageClipName、Material.UV、Material.CAV
などが含まれます。たとえば、マテリアルは MaterialLibrary
に所有されていますが、多くのオブジェクトによって使用されます。ImageShader.tspace_id
パラメータでは、各オブジェクトは特有の値を取ります。
/*
This example illustrates how to detect all parameters that support instance values
and determine which parameters are currently in use based on the usage of the material.
Parameters with instances values include: ImageShader.tspace_id, Material.ImageClipName,
Material.UV, Material.CAV.
*/
NewScene( null, false );
// Create an object with its own material
var cube = Application.ActiveSceneRoot.AddGeometry( "Cube", "MeshSurface", "MyCube" );
var mat = cube.AddMaterial( "Blinn", false, "MyMaterial" );
// Create an object with a material on a polygon cluster
var torus = Application.ActiveSceneRoot.AddGeometry( "Torus", "MeshSurface", "MyTorus" );
var cluster = torus.ActivePrimitive.Geometry.AddCluster( siPolygonCluster, "MyPolygonCluster" );
var clsmat = cluster.AddMaterial( "Phong", false, "MyMaterialOnCluster" );
// This object will get the material from the scene root.
var sphere = Application.ActiveSceneRoot.AddGeometry( "Sphere", "MeshSurface", "MySphere" );
// Create an unused material
SICreateMaterial( "Lambert", "UnusedMaterial" );
var matlib = Application.ActiveProject.ActiveScene.ActiveMaterialLibrary;
for ( var i = 0; i < matlib.Items.Count; i++ )
{
var mat = matlib.Items(i);
if ( mat.UsedBy.Count == 0 )
{
Application.LogMessage( mat.fullname + " is unused" );
continue;
}
for ( var j = 0; j < mat.Parameters.Count; j++ )
{
var param = mat.Parameters(j);
if ( param.HasInstanceValue )
{
var colUsedBy = XSIFactory.CreateObject( "XSI.Collection" );
colUsedBy.AddItems( mat.UsedBy );
colUsedBy.RemoveItems( Application.ActiveSceneRoot );
// Don't consider scene material in use - if there are no renderable objects.
if ( colUsedBy.Count == 0 )
Application.LogMessage( param.FullName + " belongs to the scene material and is currently unused" );
else
Application.LogMessage( param.FullName + " is an instance value and is being used by "
+ colUsedBy.GetAsText() );
}
}
}
// Expected results:
//INFO : Sources.Materials.DefaultLib.Scene_Material.CAV is an instance value and is being used by MyTorus,MySphere
//INFO : Sources.Materials.DefaultLib.Scene_Material.UV is an instance value and is being used by MyTorus,MySphere
//INFO : Sources.Materials.DefaultLib.Material.CAV is an instance value and is being used by MyCube
//INFO : Sources.Materials.DefaultLib.Material.UV is an instance value and is being used by MyCube
//INFO : Sources.Materials.DefaultLib.Material1.CAV is an instance value and is being used by MyTorus.polymsh.cls.MyPolygonCluster
//INFO : Sources.Materials.DefaultLib.Material1.UV is an instance value and is being used by MyTorus.polymsh.cls.MyPolygonCluster
//INFO : Sources.Materials.DefaultLib.UnusedMaterial is unused
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