If you want the quick and easy way I would suggest the ASHADOW library. Its post processing effects such as Bloom, blur and depth of field are quite nice.
A method using just blitz would be to grab the screen contents via the copyrect command, and using some offsets or scaling with different blend modes to achieve a decent(but slow) effect.
Do a search. This topic has been discussed many times, and there is some demo code in the archives.
A method using just blitz would be to grab the screen contents via the copyrect command, and using some offsets or scaling with different blend modes to achieve a decent(but slow) effect.
Do a search. This topic has been discussed many times, and there is some demo code in the archives.