The in2 attribute identifies the second input for the given filter primitive. It works exactly like the in attribute.
You can use this attribute with the following SVG elements:
For <feBlend>, in2 defines the second input image to the blending operation.Value SourceGraphic | SourceAlpha | BackgroundImage | BackgroundAlpha | FillPaint | StrokePaint | <filter-primitive-reference>Default value SourceGraphic for first filter primitive, otherwise result of previous filter primitiveAnimatable Yes
For <feComposite>, in2 defines the second input image to the compositing operation.Value SourceGraphic | SourceAlpha | BackgroundImage | BackgroundAlpha | FillPaint | StrokePaint | <filter-primitive-reference>Default value SourceGraphic for first filter primitive, otherwise result of previous filter primitiveAnimatable Yes
For <feDisplacementMap>, in2 defines the second input image, which is used to displace the pixels in the image defined in the in attribute.Value SourceGraphic | SourceAlpha | BackgroundImage | BackgroundAlpha | FillPaint | StrokePaint | <filter-primitive-reference>Default value SourceGraphic for first filter primitive, otherwise result of previous filter primitiveAnimatable Yes