Transformations

Apply a geometrical transformation to a buffer.

For the moment, only vertical flip is implemented and available.

This operation does not blend and assumes the destination buffer is empty.

transform ({ dst, op = 'vflip', src = input, oy = 0 })

`dst`	Destination buffer. Must be of the same colorspace as src. Must be specified.
`op`	Must be `“vflip”`. There is no other operation yet.
`src`	Source buffer to transform.
`oy`	Y offset.

This will create a mirrored text effect, for a font of 50px.

t = buffer ('alpha')
transform ({ oy = 20, dst = t })
blend ({ src = t, color = '#fff8' })
blend ({ color = 'white' })