layout(std430, binding=0) buffer coord3d {
	vec4 vertex[];
}  ; // No local name for this one

layout(std430, binding=1) buffer vel3d {
	vec4 velocity[];
}  ; // No local name for this one

layout(local_size_x=1) in;

void main(){
	if(velocity[gl_WorkGroupID.x].x == 0){
		velocity[gl_WorkGroupID.x].x = vertex[gl_WorkGroupID.x].x / 10.0;
	}
	if(velocity[gl_WorkGroupID.x].z == 0){
		velocity[gl_WorkGroupID.x].z = vertex[gl_WorkGroupID.x].z / 10.0;
	}

	velocity[gl_WorkGroupID.x].y -= 0.01;
	vertex[gl_WorkGroupID.x] += velocity[gl_WorkGroupID.x];
	if(vertex[gl_WorkGroupID.x].y < -5.0){
		velocity[gl_WorkGroupID.x].y *= -1.1;
		vertex[gl_WorkGroupID.x].y = -5;
	}
}