Added SwapChannels node and documentation.

addons/material_maker/doc/node_filter_swapchannels.rst

@@ -0,0 +1,24 @@
+SwapChannels node
+~~~~~~~~~~~~~~~~~
+
+The **SwapChannels** node can be used to replace each channel (R, G, B and A) of
+an with 0, 1 or a channel of its input (inverted or not).
+
+.. image:: images/node_swapchannel.png
+	:align: center
+
+Inputs
+++++++
+
+The **SwapChannels** node has a single RGBA input.
+
+Outputs
++++++++
+
+The **SwapChannels** node outputs an RGBA image whose channels are defined by its parameters.
+
+Parameters
+++++++++++
+
+The **SwapChannels** node has a parameter for each channel that defines its value (0 or 1)
+or source (a channel of the input image, inverted or not).

addons/material_maker/doc/nodes_filter.rst

@@ -13,6 +13,7 @@ The filter nodes accept one or several inputs and generate one or several images
 	node_filter_colorize
 	node_filter_combine
 	node_filter_decompose
+	node_filter_swapchannels
 	node_filter_blend
 	node_filter_blur
 	node_filter_directional_blur

addons/material_maker/library/base.json

@@ -2251,6 +2251,19 @@
 			"tree_item": "Filter/Decompose",
 			"type": "decompose"
 		},
+		{
+			"collapsed": true,
+			"icon": "filter_swapchannels",
+			"name": "swap_channels",
+			"parameters": {
+				"out_a": 8,
+				"out_b": 6,
+				"out_g": 4,
+				"out_r": 2
+			},
+			"tree_item": "Filter/SwapChannels",
+			"type": "swap_channels"
+		},
 		{
 			"collapsed": true,
 			"icon": "filter_normal_map",