# 

# This example demonstrates how to access each shader parameter instantiated 

# on the specified shader and report its shader parameter type

#

from win32com.client import constants as si

app = Application

app.NewScene("", False)

# Set up a dictionary to return nice shader parameter type names

shaderparamtypes = {

	"-1":"siShaderDataTypeUnknown", "0":"siShaderDataTypeBoolean", "1":"siShaderDataTypeInteger",

	"2":"siShaderDataTypeScalar", "3":"siShaderDataTypeVector2", "4":"siShaderDataTypeVector3",

	"5":"siShaderDataTypeVector4", "6":"siShaderDataTypeQuaternion", "7":"siShaderDataTypeMatrix33",

	"8":"siShaderDataTypeMatrix44", "9":"siShaderDataTypeColor3", "10":"siShaderDataTypeColor4",

	"11":"siShaderDataTypeString", "16":"siShaderDataTypeProperty", "17":"siShaderDataTypeProfileCurve",

	"18":"siShaderDataTypeGradient", "32":"siShaderDataTypeReference", "33":"siShaderDataTypeImage",

	"48":"siShaderDataTypeCustom", "64":"siShaderDataTypeStructure", "65":"siShaderDataTypeArray"

}

# Set up a cube with a SimpleSSS shader compound

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

sh = app.CreateShaderFromProgID("XSIRTCOMPOUND.SimpleSSS.1.2", "Sources.Materials.DefaultLib.Scene_Material", "")

app.SIConnectShaderToCnxPoint("Sources.Materials.DefaultLib.Scene_Material.SimpleSSS.Surface", 

	"Sources.Materials.DefaultLib.Scene_Material.Phong.ambient", False)

# Now we can see what kind of parameters are instantiated on this shader

for param in sh.Parameters :

	if (param.IsClassOf(si.siShaderParameterID)) :

		app.LogMessage("'" + param.ScriptName + "' == " + shaderparamtypes[str(param.DataType)])

# Expected output:

# INFO : 'bump' == siShaderDataTypeVector3

# INFO : 'ambient' == siShaderDataTypeColor4

# INFO : 'overall_color' == siShaderDataTypeColor4

# INFO : 'diffuse_color' == siShaderDataTypeColor4

# INFO : 'diffuse_weight' == siShaderDataTypeScalar

# INFO : 'front_sss_color' == siShaderDataTypeColor4

# INFO : 'front_sss_weight' == siShaderDataTypeScalar

# INFO : 'front_sss_radius' == siShaderDataTypeScalar

# INFO : 'back_sss_color' == siShaderDataTypeColor4

# INFO : 'back_sss_weight' == siShaderDataTypeScalar

# INFO : 'back_sss_radius' == siShaderDataTypeScalar

# INFO : 'back_sss_depth' == siShaderDataTypeScalar

# INFO : 'specular' == siShaderDataTypeColor4

# INFO : 'exponent' == siShaderDataTypeScalar

# INFO : 'radiance' == siShaderDataTypeColor4

# INFO : 'light' == siShaderDataTypeImage

# INFO : 'screen_composit' == siShaderDataTypeBoolean

# INFO : 'scale_conversion' == siShaderDataTypeScalar

# INFO : 'falloff' == siShaderDataTypeScalar

# INFO : 'samples' == siShaderDataTypeInteger

# INFO : 'lightmap_gamma' == siShaderDataTypeScalar

# INFO : 'scatter_bias' == siShaderDataTypeScalar

# INFO : 'Surface' == siShaderDataTypeColor4

# INFO : 'Lightmap' == siShaderDataTypeCustom