The 'Color Blend' node combines two different inputs together, resulting in a single evaluated output. A third input masks the operation, allowing its input value to drive the blending amount. The Color Blend attributes also allow the user to choose the type and amount of blending to perform, adding additional flexibility to the blend operation.
Usage
The Color Blend node is added to the 'Schematic Viewport' using the 'Add' function, found in the popup menu under "Channel Modifiers > Color > Color Blend". Once added, the RGB color (or Value) outputs of other nodes and be connected to the 'A' or 'B' inputs. Additionally, a single channel 'Mask' Value can be specified to control the blending between the two values texturally or per sample, based on the input (this is essentially like controlling the 'Blend Amount' with the mask values). The result of the blend evaluations are then sent through the 'Color' output for connecting to another RGB or value input. For information on working with node graphs, please reference the Schematic Viewport documentation for additional information. When the node is selected, the following attributes will also appear in the 'Properties' panel--
Color Blend--
Blend Amount: The 'Blend Amount' essentially changes the opacity of the 'A' input value, where 100 is fully the 'A' input, 50% is equal parts 'A' and 'B' and 0% is fully the 'B' input value.
Blend Mode: The 'Blend Mode' options determine an additional way to calculate the way the 'A' and 'B" values combine into the final result, defined by various mathematical functions that are applied to the numerical values of each input. For more information on 'Blend Modes' specifically and for illustrated examples, please reference the 'Blend Modes' page of the documentation.
Schematic Node: Color Blend
Color A/B Input: These inputs read RBG values from the output of another node. Input values can be simple RGB values or complex combinations of multiple nodes. The final representation for the blending between the two inputs is determined by the Blend Amount, the 'Blend Mode; and the Mask Input.
Mask Input: The 'Mask Input' will control the transparency of the 'A' input value, revealing the 'B' values in the masked areas. White shows the 'A' input fully, attenuating toward black which shows the 'B' input value.
Color Output: The 'Color' output field represents the final results of the evaluated blend.
