'

' This example creates two shaders in a simple render tree, and applies

' texture layers to them.  Then it removes some of the layers, illustrating

' the RemoveTextureLayers command.

' In particular, it builds the following stacks of layers.

'

' Phong      Fractal

'   A           A

'   B           B

'   C           C

'

option explicit

dim oSph, oPhong, oFractal, oLyr(2)

' Build our shaders (a Phong and a Fractal), which will be the "texture

' layer containers" that will each be able to hold a stack of layers.

NewScene , False

set oSph = CreatePrim( "Sphere", "MeshSurface" )

set oPhong = SIApplyShader( "Phong", oSph )

set oFractal = BlendInPresetsInsp( "Fractal", , , True, siReplaceNoBlend, False, False, True )

' Now create and add all the layers, as indicated above.

' Add 'A', 'B' and 'C' to both containers at the end.

set oLyr(0) = AddTextureLayer( , oPhong & "," & oFractal, "A", True )

set oLyr(1) = AddTextureLayer( , oPhong & "," & oFractal, "B", True )

set oLyr(2) = AddTextureLayer( , oPhong & "," & oFractal, "C", True )

'

' Now start removing.  First we'll remove layer 'A' from just one

' of the containers.

RemoveTextureLayers oLyr(0), oPhong(0)

' Now we'll remove layer 'B' from all containers which hold it.

RemoveTextureLayers oLyr(1)

PrintTextureLayersInContainer oPhong

PrintTextureLayersInContainer oFractal

sub PrintTextureLayersInContainer( in_cont )

	dim oStack, oItem, oStr

	oStr = "Texture Layers in Container: " & in_cont & vbCrLf

	set oStack = EnumElements( in_cont & ".TextureLayers" )

	for each oItem in oStack

		oStr = oStr & "    " & oItem.name & vbCrLf

	next

	logmessage oStr

end sub

'

' The output from the example should look something like this:

'

'INFO : Texture Layers in Container: sphere.Material.Phong

'    C

'

'INFO : Texture Layers in Container: sphere.Material.Phong.Fractal

'    A

'    C

'