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

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