in2 - SVG: Scalable Vector Graphics 编辑

The in2 attribute identifies the second input for the given filter primitive. It works exactly like the in attribute.

feBlend

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 primitive
Animatable	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 primitive
Animatable	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 primitive
Animatable	Yes

Specification	Status	Comment
Filter Effects Module Level 1 The definition of 'in2 for <feDisplacementMap>' in that specification.	Working Draft	No change
Filter Effects Module Level 1 The definition of 'in2 for <feComposite>' in that specification.	Working Draft	No change
Filter Effects Module Level 1 The definition of 'in2 for <feBlend>' in that specification.	Working Draft	No change
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'in2 for <feDisplacementMap>' in that specification.	Recommendation	Initial definition for `<feDisplacementMap>`
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'in2 for <feComposite>' in that specification.	Recommendation	Initial definition for `<feComposite>`
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'in2 for <feBlend>' in that specification.	Recommendation	Initial definition for `<feBlend>`