The Layer shader is used to mix up to eight shaders together. It returns a linear interpolation of Layer1 and Layer2 according to the alpha attribute. An alpha value of 0 outputs Layer1, a value of 1 outputs Layer2, and a value of 0.5 mixes evenly between Layer1 and Layer2. Each layer has a flag to activate/deactivate the given layer. The shader expects surface shaders as its input and also blends the opacity. Layers are applied in order.

Enable (1-8)

Enable/disable the layer entirely.

Swap Inputs (1-8)

Swaps the input of the current and the selected layers.

Move (1-8)

Moves the current layer in place of the selected layer, pushing the other layers up or down, changing the order of the layers. For instance, if layer 2 is moved in place of layer 5, the new order is (bottom to top): layer 1, layer 3, layer 4, layer 5, layer 2, layer 6, layer 7, layer 8.

Name (1-8)

Layer name.

Input (1-8)

The input value for Layer.

Mix (1-8)

Controls the amount of blending between shaders.

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