---

/*{
	"CREDIT": "pablo.riera",
	"DESCRIPTION": "",
	"CATEGORIES": [
		"XXX"
	],
	"INPUTS": [
		{
			"NAME": "color",
			"TYPE": "color",
			"DEFAULT": [
				1,
				1,
				1,
				1
			]
		},
		{
			"NAME": "sc",
			"TYPE": "float",
			"DEFAULT": 100,
			"MIN": 0,
			"MAX": 1000
		},
		{
			"NAME": "off",
			"TYPE": "float",
			"DEFAULT": 0,
			"MIN": -1,
			"MAX": 2
		},
		{
			"NAME": "rot",
			"TYPE": "float",
			"DEFAULT": 0,
			"MIN": 0,
			"MAX": 6.28
		},
		{
			"NAME": "ssca",
			"TYPE": "float",
			"DEFAULT": 1,
			"MIN": 0,
			"MAX": 2
		},
		{
			"NAME": "dir",
			"TYPE": "point2D",
			"DEFAULT": [
				0,
				0
			]
		}
	]
}*/

float bump(float w, float center, float x)
{
float f = 1.0;
	return smoothstep( (center-w)/f , (center-w)*f , x)*smoothstep( (center+w)/f , (center+w)*f , x);

}

void main() {

	vec2 pos = isf_FragNormCoord.xy;
//	;

	vec3 color = vec3(color.rgb);

	float x = float(int(pos.x*4.0));

	float ph = rot;//+ 3.1415*sin(6.0*pos.x)*x;

	/*if(x==0.0)
		ph=0.0;
	else if(x==1.0)
	 	ph=+3.14/4.0;
	else if(x==2.0)
	 	ph=+3.14/2.0;
	else if(x==3.0)
	 	ph=3.14/4.0*3.0;*/

	for(int i=0;i<4;i++)
	{
		ph+=bump(0.25,float(i)/4.0,pos.x)*3.1415/4.0;
	}


	vec2 M = vec2(sin(ph),cos(ph))*sc;

	float shape = sin(dot(pos,M))*ssca+off;

	gl_FragColor = vec4(shape*color,1.0);

}