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Perspective Positioner [PPn]
The Perspective Positioner node
Perspective Positioner Node Introduction
The Perspective Positioner is the complementary node to the Corner Positioner node. It “unpins” an image by positioning corner points on a perspective distorted area, thereby removing the perspective from the image. This function can also be used to wobble and warp the image by animating the points over time.
Inputs
The two inputs on the Perspective Positioner node are used to connect a 2D image and an effect mask, which can be used to limit the transformed area.
— Input: The orange input is used for the primary 2D image that is transformed.
— Effect Mask: The blue input is for a mask shape created by polylines, basic primitive shapes, paint strokes, or bitmaps from other tools. Connecting a mask to this input limits the transform to only those pixels within the mask. An effects mask is applied to the tool after the tool is processed.
Basic Node Setup
In the example below, the Perspective Positioner is used to unpin a perspective distorted area of the MedianIn2 in order to paint on the flat texture. The MediaIn2 is then corner pinned back into place. The Perspective Positioner and Corner Positioner do not concatenate, so some softness is introduced with these nodes.
The Perspective Positioner unpins an image to paint on a texture map.