from win32com.client import constants as si

app = Application

app.NewScene("", 0)

#

#	SETUP

#

# Create a ShaderDef from the factory

oShaderDef = XSIFactory.CreateShaderDef("NoParser", "Nunce", 1, 0)

# On-the-fly shader definitions won't show up in the preset manager 

# but just in case this definition eventually gets saved to file

oShaderDef.Category = "Test Shaders"

# Add the basic Texture family

oShaderDef.AddShaderFamily(si.siShaderFamilyTexture)

#

#	PARAMETERS

#

# Create one set of parameter definition options for all 

oPDefOptions = XSIFactory.CreateShaderParamDefOptions()

oPDefOptions.SetTexturable(True) # make it a port on the shader node

# Get the ShaderParamDefContainers for both inputs and outputs. The

# new parameter definitions will be added to these objects

oInputPDefs = oShaderDef.InputParamDefs

oOutputPDefs = oShaderDef.OutputParamDefs

# Add color, scalar, and boolean ShaderParamDefs as inputs

oInputPDefs.AddParamDef("in_color", si.siShaderDataTypeColor4 , oPDefOptions)

oInputPDefs.AddParamDef("in_scalar", si.siShaderDataTypeScalar , oPDefOptions)

oInputPDefs.AddParamDef("in_boolean", si.siShaderDataTypeBoolean , oPDefOptions)

# Output a color

oOutputPDefs.AddParamDef("out", si.siShaderDataTypeColor4, oPDefOptions)

# Set up a Renderer

oRendererDef = oShaderDef.AddRendererDef("mental ray")

oRendererDef.SymbolName = "sib_attribute_boolean"

oRendererDef.CodePath = "{LIBS}/sibase.{EXT}"

oRendererOpts = oRendererDef.RendererOptions

oRendererOpts.Set("version", 1)

#

#	INSTANTIATION

#

# Generate a preset and connect it to a cone

app.CreatePrim("Cone", "MeshSurface")

app.CreateShaderFromProgID("NoParser.Nunce.1.0", 

	"Sources.Materials.DefaultLib.Scene_Material")

app.SIConnectShaderToCnxPoint("Sources.Materials.DefaultLib.Scene_Material.Nunce.out", 

	"Sources.Materials.DefaultLib.Scene_Material.volume", False)

# Open the Render Tree with the cone selected to see it

# Open the Synoptic viewer

app.OpenView("Render Tree")

//

//	This example demonstrates how to instantiate and connect a shader

//	definition, then how to get the shader definition from the system

//	and use it to find its instance (shader)

//

app = Application;

app.NewScene("", false);

var sProgID = "Softimage.material-moviescreen.1.0";

LogInstances(sProgID);

CreateShaderFromProgID(sProgID, "Sources.Materials.DefaultLib.Scene_Material");

LogInstances(sProgID);

// INFO : # of instances on Flat Light: 1

// INFO : Found shader instance: Shader

// INFO : Shader container: null

// Set up a torus and a disc and connect the shader to both

var obj1 = CreatePrim("Torus", "MeshSurface");

SIConnectShaderToCnxPoint("Sources.Materials.DefaultLib.Scene_Material.Flat_Light.out", 

	"Sources.Materials.DefaultLib.Scene_Material.Phong.reflectivity", false);

SIConnectShaderToCnxPoint("Sources.Materials.DefaultLib.Scene_Material.Flat_Light.out", 

	"Sources.Materials.DefaultLib.Scene_Material.Phong.radiance", false);

var obj2 = CreatePrim("Disc", "MeshSurface");

RemoveShaderFromCnxPoint("Sources.Materials.DefaultLib.Scene_Material.Flat_Light.out", 

	"Sources.Materials.DefaultLib.Scene_Material.Phong.reflectivity", false);

SIConnectShaderToCnxPoint("Sources.Materials.DefaultLib.Scene_Material.Flat_Light.out", 

	"Sources.Materials.DefaultLib.Scene_Material.Phong.reflectivity", false);

LogInstances(sProgID);

// INFO : # of instances on Flat Light: 2

// INFO : Found shader instance: Shader

// INFO : Shader container: null

// INFO : Found shader instance: Flat_Light

// INFO : Shader container: Sources.Materials.DefaultLib.Scene_Material

// Convenience function that will be called before and after 

// instantiating and after connecting the shader

function LogInstances( in_name )

{

	var oShaderDef = app.ShaderDefinitions(in_name);

	app.LogMessage("# of instances on "+oShaderDef.DisplayName+": "+oShaderDef.ShaderInstanceCount);

	if (oShaderDef.ShaderInstanceCount) {

		for (var i=0; i<oShaderDef.ShaderInstanceCount; i++) {

			var oShader = oShaderDef.ShaderInstances(i);

			app.LogMessage("Found shader instance: "+oShader.Name);

			app.LogMessage("Shader container: "+oShader.GetShaderContainer());

		}

	}

}