motionVectorScaleX

Declaration

var motionVectorScaleX: Float { get set }

Discussion

The scaler converts the horizontal component of each value in motionTexture into fragment (pixel) coordinates by multiplying it by this property’s value.

If you set this property’s value to 1.0, this denoiser scaler expects that each pixel’s motion vector points to that pixel’s location in the colorTexture at the time of the last call to encode this scaler’s work. For example, in Metal’s standard device coordinates, where (0,0) represents the upper-left corner of the framebuffer, the motion vectors for an object that moves down and to the right in the colorTexture by 10 pixels would be (-10,-10).