Function displacement_map

pub fn displacement_map(
    x_channel_selector: ColorChannel,
    y_channel_selector: ColorChannel,
    sx: f64,
    sy: f64,
    src: ImageRef<'_>,
    map: ImageRef<'_>,
    dest: ImageRefMut<'_>,
)

Applies a displacement map.

• map pixels should have a unpremultiplied alpha.
• src pixels can have any alpha method.

sx and sy indicate canvas scale.

Panics

When src, map and dest have different sizes.