Corners Four corners geometry engine Marko Cebokli Corner 1 X Corner 1 Y Corner 2 X Corner 2 Y Corner 3 X Corner 3 Y Corner 4 X Corner 4 Y Stretch X Stretch Y Feather Alpha Enable Stretch Nearest neighbor,Bilinear,Bicubic smooth,Bicubic sharp,Spline 4x4,Spline 6x6,Lanczos Interpolator Transparent Background Write on clear,Maximum,Minimum,Add,Subtract Alpha operation