This is a function-based cellular automaton (CA). The function sums three neighboring cells, but if the sum is greater then 1 the result is set to 0. The random initial condition are real numbers ranging from 0 to 1.
This CA looks like a class four CA, with local structures and repetitive patterns; it is similar to a continuous CA. Even though the cells take continuous values, after the first step of evolution there seems to be only a few remaining colors.