Vector Warp Node
The Vector Warp node enables you to warp an image using data from a second input image. Vector Warp can be used to create animated displacements, such as ripples or wakes, and other distortion effects.
The Vector Warp node requires two inputs. The bottom input must be a two-channel floating point image, such as the output produced by the Surface Normal node. The top input, on the other hand, may be one or more 8-bit, 16-bit, or floating point channels.
The vector data in the bottom input is used to control the displacement of corresponding pixels in the top input image. The output image of the Vector Warp node will be the same number of channels as the top input image.
Vector Warp Parameter Tab
Magnitude
The Magnitude parameter enables you to adjust the magnitude of the effect by specifying a multiplier value for the vector data in the bottom input. You set the Magnitude parameter by keying a value in the range of -20 to 20 into the data entry field or by using the mouse to set the tuner to the desired value. The default value is 1, which represents no change from the input image.
Larger positive and negative values both result in more pronounced distortion. Negative values, however, reverse the direction of the vector to create warping in the opposite direction of positive values.
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