particulas

uniform texture particles;
uniform float w;
uniform float h;
vec4 par = tex(particles,UV);
vec2 st = UV.xy/SCREEN_UV.xy;
    vec3 col = vec3(0.0);

    // Each result will return 1.0 (white) or 0.0 (black).
    float left = step(0.1,st.x);   // Similar to ( X greater than 0.1 )
    float bottom = step(0.1,st.y); // Similar to ( Y greater than 0.1 )
	vec2 uv1= vec2(UV.x,UV.y);
	uv1.x += sin(uv1.y*20.0+TIME*20)*.005;
	uv1.x = clamp(uv1.x,0,1);
    // The multiplication of left*bottom will be similar to the logical AND.
    col = vec3( left * bottom );
	float valor = 11;
	float valor2=3;
	float pixel = 1.0/64 *valor;
	float pixel_y = 1.0/64*valor2;
 	if  (UV.x >(pixel) && UV.x<pixel+1.0/64  && UV.y> pixel_y && UV.y <(1.0/64)*4


){COLOR.rgb= vec3(0,0,0);};

 	//if  (UV.x >(pixel) && UV.x<pixel+1.0/64  && UV.y> pixel_y && UV.y <(1.0/64)*4
 	if  (UV.x >(pixel+sin(TIME/10)) && UV.x<pixel+sin(TIME/10)+1.0/64  && UV.y> pixel_y && UV.y <(1.0/64)*4

){COLOR = vec4(1,0,0,0.5);};


//if (){;};