Pieces of bricks and rocks, appearing from left side of the screen, scattering on imaginary flat surface, green screen background, animation video overlay for chroma key blending option

bricks rocks falling spreading stone scattering scattered bricks demolition explosion green screen animation bricks on green stones screen overlay debris scatter debris on green brick debris screen overlay video visual effects postproduction film editing cgi compositing keying virtual set digital compositing motion graphics vfx chroma keying flat surface stone material digital effects wreck broken destruction special effects keying process hitting splattering demolition debris mining chroma key dynamite overlay brick editing demolition debrie expolosion brick stone