3D Lingo Dictionary > A-B > blendFunctionList

 

blendFunctionList

Syntax

member(whichCastmember).shader(whichShader).blendFunctionList{[index]}
member(whichCastmember).model(whichModel).shader.blendFunctionList{[index]}
member(whichCastmember).model(whichModel).shaderList{[index]}.blendFunctionList{[index]}

Description

3D #standard shader property; a linear list that indicates the manner in which each texture layer blends with the texture layer below it.

The shader's texture list and blend function list both have eight index positions. Each index position in the blend function list controls blending for the texture at the corresponding index position in the texture list. You can set all index positions of the list to the same value at one time by not specifying the optional index parameter. Use the index parameter to set the list one index position at a time.

Each index position of the blend function list can have one of the following values:

#multiply multiplies the RGB values of the texture layer by the RGB values of the texture layer below it.

#add adds the RGB values of the texture layer to the RGB values of the texture layer below it, and then clamps to 255.

#replace causes the texture to cover the texture layer below it. No blending occurs.

#blend causes blending to be controlled by the value of the blendSource property, which allows alpha blending. See the entry for the blendSource property for more information.

The default value of this property is #multiply.

Example

In this example, the shaderList property of the model named MysteryBox contains six shaders. This statement shows that the value of the fourth index position of the blendFunctionList property of the second shader is set to #blend. Blending of the fourth texture layer of the second shader of the model will be controlled by the settings of the blendSource, blendSourceList, blendConstant, blendConstantList, diffuse, diffuseColor, and useDiffuseWithTexture properties.

put member("Level2").model("MysteryBox").shaderList[2].blendFunctionList[4]
-- #blend

See also

blendConstant, blendConstantList, blendFunction, blendSource, blendSourceList, diffuse, diffuseColor, useDiffuseWithTexture