#

# This example demonstrates how to use the DisconnectAndDeleteOrUnnestShaders 

# command by creating two shaders in a simple render tree, and deleting the 

# phong without deleting the attached fractal.

# 

null = None

true = 1

false = 0

app = Application

app.NewScene( "", 0 )

# Build our shaders (a Phong and a Fractal)

oSph = app.CreatePrim( "Sphere", "MeshSurface" )

oPhong = app.SIApplyShader( "Phong", oSph )

oFractal = app.BlendInPresets( "Fractal", None, None, true, siReplaceNoBlend, false, false, true )

# Now display the render tree. A message box appears so that you can see the 

# contents of the render tree before deleting one of the shaders. When you are

# ready to proceed, click OK...

app.OpenView( "Render Tree" )

lResponse = XSIUIToolkit.MsgBox( "When you are ready to proceed, click OK. "

	+ "The message box will close and the DisconnectAndDeleteShaders command "

	+ "will remove the shader node only.", siMsgOkCancel + siMsgInformation, 

	"DisconnectAndDeleteShaders Demo" )

if ( lResponse == siMsgOk ) :

	app.DisconnectAndDeleteShaders( oPhong )

else :

	app.LogMessage( "You opted not to complete the demonstration." )