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FindShaders (Light)

Introduced

5.0

Description

Returns all shaders applied to the light that match a filter. If no matching shaders are found, FindShaders returns an empty collection.

Scripting Syntax

Light.FindShaders( Filter )

C# Syntax

ShaderCollection Light.FindShaders( String );

Parameters

Return Value

ShaderCollection

Examples

JScript Example

// Create a scene with an object lit by a spotlight
var root = Application.ActiveProject.ActiveScene.Root;

var grid = root.AddGeometry( "Grid", "MeshSurface" );
scale( grid, 2, 2, 2, siAbsolute );

var cone = root.AddGeometry( "Cone", "MeshSurface" );
translate(cone, 0, 1.3, 0 );

var light = root.AddLight( "LightSpot", true, "SpotLight" );

ApplyCns( "Position", light.interest, cone );
ApplyCns( "Orientation", light.interest, cone );

translate( light, 4, 6, 4);

var strFileName = Application.InstallationPath( siFactoryPath ) + 
   "\\Data\\XSI_SAMPLES\\Pictures\\xsilogo.jpg";

var imageclip = CreateImageClip( strFileName, "XSILogo" );

// Find the first parameter that is texturable and of type color. 
// This is the shader connection point.
var shader_param = null;

for ( i=0; i < light.parameters.count; i++ )
{
   var param =  light.parameters(i);
   var inputtype =  light.GetShaderInputType(param.scriptname);

   if ((param.capabilities & siTexturable) && (inputtype == siColorParameterType ))
   {
       shader_param = param;
       break;
   }
}
logmessage( "shader connection point = " + shader_param.fullname );

// set up shader tree
if ( shader_param )
{
   var mix2 = shader_param.ConnectFromProgID("Softimage.sib_color_2mix");

   var soft_light = mix2.parameters("base_color").ConnectFromProgID("Softimage.soft_light");

   var fast_light_effect = mix2.parameters("color1").ConnectFromProgID("Softimage.Bionic_Light.lit");

   fast_light_effect.parameters("Projector_Pic").connect(imageclip);
}

// Find the soft_light shader
var shaders = light.FindShaders(siShaderFilter);
var eShaders = new Enumerator(shaders);

// Set up shadows with a softlight.
var soft_light_id = String("Softimage.soft_light.1").toLowerCase();

for ( ; !eShaders.atEnd(); eShaders.moveNext() )
{
   var shader = eShaders.item();

   if (shader.progid.toLowerCase() == soft_light_id)
   {
       // setup shadows
       var soft_light = shader;

       soft_light.parameters("shadow").value = true;
       soft_light.parameters("factor").value = 0.5;
       break;
   }
}
//INFO : shader connection point = SpotLight.light.LightShader

See Also

Autodesk Softimage v7.5     <     >