neercs/neercs/video/blurh.lolfx

-- GLSL.Vert --

#version 120

void main()
	{
	gl_Position=gl_Vertex;
	gl_TexCoord[0]=gl_MultiTexCoord0;
	}

-- GLSL.Frag --

#version 120

uniform sampler2D texture;
uniform vec2 screen_size;
uniform float blur;
uniform float deform;

const float PI=3.14159265358979323846;

void main(void)
	{
	vec4 total=vec4(0.0);
	vec2 p=gl_TexCoord[0].xy/screen_size;
	float mask=2.0-p.x*(6.0-p.x*6.0)*p.y*(6.0-p.y*6.0);
	float b=blur+deform*mask;
	total+=texture2D(texture,vec2(p.x-b*4.0,p.y))*0.04;
	total+=texture2D(texture,vec2(p.x-b*3.0,p.y))*0.08;
	total+=texture2D(texture,vec2(p.x-b*2.0,p.y))*0.12;
	total+=texture2D(texture,vec2(p.x-b    ,p.y))*0.16;
	total+=texture2D(texture,vec2(p.x      ,p.y))*0.20;
	total+=texture2D(texture,vec2(p.x+b    ,p.y))*0.16;
	total+=texture2D(texture,vec2(p.x+b*2.0,p.y))*0.12;
	total+=texture2D(texture,vec2(p.x+b*3.0,p.y))*0.08;
	total+=texture2D(texture,vec2(p.x+b*4.0,p.y))*0.04;
	gl_FragColor=total;
	}