Custom Blend Modes 


  • Where to find it:


    • Layerpalette / Blendmodes


    • NodeGraph / Merge Node / Blendmodes


    • Painting Toolbar / Blendmodes





Custom Blendmodes extend Mari's extensive list of Blendmodes


Linear Light


Burns or dodges the colors by decreasing or increasing the brightness, depending on the blend color. 

If the blend color  is lighter than 50% gray, the image is lightened by increasing the brightness. 

If the blend color is darker than 50% gray, the image is darkened by decreasing the brightness.



Example of Linear Light Blend Mode


This Blend mode is similar to a Vivid Light Blendmode which instead of increasing/decreasing the brightness,

will increase/decrease the Contrast.




Add/Sub



Example of Add/Sub Blend Mode


This Blendmode works computationally the same as the Add |Sub Blend Mode found in the Substance Suite


    • Foreground pixels ('Over' on a Merge Node) with a value higher than 0.5 are added to their respective background pixels.
    • Foreground pixels ('Over' on a Merge Node) with a value lower than 0.5 are subtracted from their respective background pixels.



A + ( ( B - 0.5) * 2.0 )


The result is NOT clamped




Add/Sub Halve



Example of Add/Sub Halve Blend Mode


This Blend mode is similar to an Overlay but subtracts a value of 0.5 first before combining


A + (B - 0.5)        


The result is clamped to 0-1.


Compared to the Add | Sub Blendmode this Blendmode tends to favor the Background Texture and generally builds up less contrast,

when applied multiple times. 



Example of a Mask from Curvature Node configured with using Add|Sub Halve vs Add|Sub

Subtract


A straight subtraction


(A-B)


The result is NOT clamped