Blend

Mixes or blends together two images, a foreground image on top of a background one, with a configurable blend mode and optional mask (which used with the alpha channel of the top image). The alpha blending for images with alpha channels can also be configured.

Input Parameters

• Foreground Image
  The top layer of the blend.
• Background Image
  The bottom layer of the blend.
• Mode Enum · Default, Average, Add, Subtract, AddSubtract, Multiply, Divide, Minimum, Maximum, ColorBurn, LinearBurn, ColorDodge, LinearDodge, Screen, Overlay, SoftLight, HardLight, VividLight, LinearLight, PinLight, HardMix, Difference, Exclusion, Negation, Glow, Phoenix, Reflect, Hue, Saturation, Color, Luminosity
  Blending mode used for mixing the images. Note. Minimum and Maximum blend nodes are also know as Darken and Lighten. While linear dodge is similar to add except it clamps the maximum value to 1.0.
• Opacity Float
  Multiplier for the opacity of the foreground image.
• InvertMask Boolean
  Inverts the alpha channels of the two input images.
• SRGB Boolean
  Enable to perform the blend in sRGB colorspace.

Advanced

• OpacityMaskMode Enum · Multiply, Divide, ReverseDivide, Add, Subtract, ReverseSubtract, UseMask, Ignore
• OpacityMask Image Grayscale
  Optional image that gets multiplied with the alpha of the foreground image.
• AlphaMode Enum · Straight, Premultiplied, Foreground, Background, Add, Multiply, Minimum, Maximum, MutuallyExclusive, Ignore
  Alpha blending used only for images that have alpha channels present. This can be: straight alpha blending (i.e. Result.rgb = lerp(Top.rgb, Bottom.rgb, Top.a) and Result.a = Top.a + Bottom.a), premultiplied alpha blending (i.e. Result.rgb = Top.rgb + Bottom.rgb * (1.0 - Top.a) and Result.a = Top.a + Bottom.a), source alpha blending (i.e. Result.rgba = lerp(Top.rgba, Bottom.rgba, Top.a) and ingore alpha channels (Result.rgb = Top.rgb and Result.a = 1.0).
• BackgroundAlphaMode Enum · Multiply, Maximum, Add, Ignore
• ForegroundPlacement Enum · Stretch, AspectFit, AspectFill, AspectOriginal
• ForegroundAnchor Vec2
• ForegroundPosition Vec2
• Clamp Boolean
  Enable to clamp the blended value to the 0...1 range. This should be on to enable your material to execute in "FullRange" identical to "Normalized" formats. Otherwise blends such as "Add" or "Subtract" could lead to negative values with unintended consequences.

Output Parameters

• Output Output Image

Meta

Author	InstaMaterial GmbH
Category	Image/Blend
Tooltip	Mixes or blends together two images, a foreground image on top of a background one, with a configurable blend mode and optional mask (which used with the alpha channel of the top image). The alpha blending for images with alpha channels can also be configured.
Name	Blend
Version	1.104
ID	5fdaddf9-c419-470f-a8e1-48dd2be0b425
PackageUrl	pkg://8f46a203-9d48-4496-bd8e-759e64efcb6e/atoms/5fdaddf9-c419-470f-a8e1-48dd2be0b425.atom