<?xml version="1.0" encoding="UTF-8" ?>
<c2effect>
	<!-- About -->
	<id>Scroll</id>			<!-- Never change the ID.  Change the name instead -->
	<name>Scroll</name>
	<category>Distortion</category>
	<description>Seamlessly scroll the texture within a given amount of time</description>
	<author>Somebody</author>
	
	<!-- Settings -->
	

	<!-- Extend the bounding box for effect processing by a number of pixels to show the edges
		 of effects which go beyond the object edges, e.g. blur and warp. -->
	<extend-box-horizontal>0</extend-box-horizontal>
	<extend-box-vertical>0</extend-box-vertical>
	
	<!-- Set to true if the background is sampled (samplerBack is referenced at all in the shader) -->
	<blends-background>false</blends-background>
	
	<!-- Set to true if the background is not sampled at 1:1 with the foreground (e.g. the
		 background texture co-ordinates are modified in some way by the shader, as done
		 by Glass and Lens) -->
	<cross-sampling>false</cross-sampling>
	
	<!-- Set to true if the effect changes over time, e.g. Noise or Warp effects. -->
	<animated>true</animated>
	
	<!-- Parameters -->
	<parameters>
		<param>
			<name>X shift</name>
			<description>Amount of time for a full horizontal shift</description>
			<type>float</type>
			<initial>0</initial>
			<uniform>xshift</uniform>
		</param>
		<param>
			<name>Y shift</name>
			<description>Amount of time for a full vertical shift</description>
			<type>float</type>
			<initial>0</initial>
			<uniform>yshift</uniform>
		</param>
	</parameters>
</c2effect>
[/code:3p4wo9m0]
scroll.fx
[code:3p4wo9m0]/////////////////////////////////////////////////////////
// Scroll effect
varying mediump vec2 vTex;
uniform lowp sampler2D samplerFront;
uniform lowp float seconds;

uniform lowp float xshift;
uniform lowp float yshift;

void main(void)
{	
	mediump vec2 tex = vTex;
	
	if (xshift != 0.0) tex.x = mod(tex.x-mod(seconds,xshift)/xshift,1.0);
	if (yshift != 0.0) tex.y = mod(tex.y-mod(seconds,yshift)/yshift,1.0);
		
	gl_FragColor = texture2D(samplerFront,tex);
}[/code:3p4wo9m0]

For some reasons tiledbackgrounds seem to do it though either layout size or window size. Sprites work as expected.
The tiledbackgrounds is 16x16 and its width is a multiple of 16 and its height is 16.
Any support, will be greatly appreciated, in addition can you explain what you done so I can learn. 
Thank you

For Loop "y" in range 0,(Tilemap.Width/16)
     For Loop "x" in range 0,(Tilemap.Width/16)
     tilemap.TileAt(x,y) == 8 then
     tilemap:removeTile(x,y)
     createObject("lava",x*16,y*16)
      For Loop "xx" in range loopindex("x"),(Tilemap.Width/16)-loopindex("x")
           tilemap.TileAt(xx,y) == 8 then
           tilemap:removeTile(x,y)
           lava.width += 16
           else breakloop[/code:1defa2zy] 

 
What happens: Code works as expected however it creates multiple lava sprites on the same width 
 
I'm guessing the loop runs side by side so it calls the function on multiple tiles.
(using shader to make sprite work like tiled background, and this isn't the problem)
 
I'm also sorry if this makes little to no sense.