use namespace flare;
use namespace flare.transforms;
use namespace flare.filters;

param TIME time;
param COS_TIME ctime;

float effect(float2 p)
{
	// moving by cos time.
	p*= 2 * ctime.y;
	
	// return the length from center.
	return sin(length(p)*(50+ctime.x*50));
}

technique main 
{
	param float2 resolution = float2(600, 600);
	
	// get the vertex position.
	float4 pos = transform();
 
	// interpolate the position to the fragment.
	interpolated float4 iProj = pos;
	
	// move position.
	float2 pos2 = iProj.xy * ctime.yz;
	
	output vertex = pos;
	
	// change color.
	output fragment = float4( effect(pos2).x, ctime.z*2, ctime.y*4, 1);
}