Evaluates a specified parameter using the following formula: 

output.x = mat[0] [0] * param.x + mat[1] [0] * param.y + mat[2][0] * param.z + vect[0] output.y = mat[0] [1] * param.x + mat[1] [1] * param.y + mat[2][1] * param.z + vect[1] output.z = mat[0] [2] * param.x + mat[1] [2] * param.y + mat[2][2] * param.z + vect[2]