perspective
Applies a perspective projection transform.
This transform scales points in X and Y based on their Z value, scaling points with positive Z values away from the origin, and those with negative Z values towards the origin. Points on the z=0 plane are unchanged.
This function consumes @next. Use method@Gsk.Transform.ref first if you want to keep it around.
Return
The new transform
Parameters
depth
distance of the z=0 plane. Lower values give a more flattened pyramid and therefore a more pronounced perspective effect.