num3ric/aratio.glsl

## aratio.glsl
<movie service="craftsman-1.0">
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<![CDATA[

#version 120
#extension GL_EXT_gpu_shader4 : enable

uniform sampler2D texture0;
uniform sampler2D texture1;
uniform sampler2D texture2;

vec2 iResolution = vec2(1280, 720.0);

float scaleFrom( float coord, float center, float factor )
{
    float transformed_coord = coord;
    transformed_coord -= center;
    transformed_coord *= factor;
    transformed_coord += center;
    return transformed_coord;
}

float getAspectRatio( in int id )
{
    vec2 size = vec2( 1.0 );
    if( id == 0 ) {
        size = textureSize2D( texture0, 0 );
    } else if( id == 1 ) {
        size = textureSize2D( texture1, 0 );
    } else if( id == 2 ) {
        size = textureSize2D( texture2, 0 );
    }
    return size.x / size.y;
}

vec3 texColor( in int id, in vec2 coord ) {
    vec3 color = vec3( 0 );
    vec2 tc = coord;
    float a0 = getAspectRatio( 0 );
    float at = getAspectRatio( id );
    if( id == 0 ) {
        color = texture2D( texture0, tc / iResolution ).rgb;
    } else if( id == 1 ) {
        tc.y = scaleFrom( tc.y, 0.5 * iResolution.y, at/a0 );
        color = texture2D( texture1, tc / iResolution ).rgb;
    } else if( id == 2 ) {
        tc.y = scaleFrom( tc.y, 0.5 * iResolution.y, at/a0 );
        color = texture2D( texture2, tc / iResolution ).rgb;
    }
    return color;
}


void main() {
    vec2 tc = gl_TexCoord[0].xy * iResolution;

    vec3 col0 = texColor( 0, tc );
    vec3 col1 = texColor( 1, tc );
    vec3 col2 = texColor( 2, tc );

    gl_FragColor = vec4( 0.3333 * (col0 + col1 + col2 ), 1.0 );
}

]]>
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<body>
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        <widget type="customers2.xfactor.kaleidoscope.720.01" duration="5">
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         <filter type="custom">
           <filtercode name="averageShift"/>
           <video volume="0" filename="https://s3.amazonaws.com/mixoff.videos.us/384d6e1da7a0663814f2454136cad85b443fb4041408605850.mp4"/>
           <video volume="0" filename="http://stupeflix-tmp.s3.amazonaws.com/MVI_2906.MOV.ff.mp4"/>
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</body>
</movie>
	<movie service="craftsman-1.0">
	<head>
	<filtercode name="averageShift">
	<![CDATA[

	#version 120
	#extension GL_EXT_gpu_shader4 : enable

	uniform sampler2D texture0;
	uniform sampler2D texture1;
	uniform sampler2D texture2;

	vec2 iResolution = vec2(1280, 720.0);

	float scaleFrom( float coord, float center, float factor )
	{
	float transformed_coord = coord;
	transformed_coord -= center;
	transformed_coord *= factor;
	transformed_coord += center;
	return transformed_coord;
	}

	float getAspectRatio( in int id )
	{
	vec2 size = vec2( 1.0 );
	if( id == 0 ) {
	size = textureSize2D( texture0, 0 );
	} else if( id == 1 ) {
	size = textureSize2D( texture1, 0 );
	} else if( id == 2 ) {
	size = textureSize2D( texture2, 0 );
	}
	return size.x / size.y;
	}

	vec3 texColor( in int id, in vec2 coord ) {
	vec3 color = vec3( 0 );
	vec2 tc = coord;
	float a0 = getAspectRatio( 0 );
	float at = getAspectRatio( id );
	if( id == 0 ) {
	color = texture2D( texture0, tc / iResolution ).rgb;
	} else if( id == 1 ) {
	tc.y = scaleFrom( tc.y, 0.5 * iResolution.y, at/a0 );
	color = texture2D( texture1, tc / iResolution ).rgb;
	} else if( id == 2 ) {
	tc.y = scaleFrom( tc.y, 0.5 * iResolution.y, at/a0 );
	color = texture2D( texture2, tc / iResolution ).rgb;
	}
	return color;
	}


	void main() {
	vec2 tc = gl_TexCoord[0].xy * iResolution;

	vec3 col0 = texColor( 0, tc );
	vec3 col1 = texColor( 1, tc );
	vec3 col2 = texColor( 2, tc );

	gl_FragColor = vec4( 0.3333 * (col0 + col1 + col2 ), 1.0 );
	}

	]]>
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	</head>

	<body>
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	<widget type="customers2.xfactor.kaleidoscope.720.01" duration="5">
	<video skip="1.0" volume="0" filename="https://s3.amazonaws.com/mixoff.videos.us/f9a138df3e0c2a2db00a1dc2a701d842e73a7b091409671566.mp4">
	<filter type="custom">
	<filtercode name="averageShift"/>
	<video volume="0" filename="https://s3.amazonaws.com/mixoff.videos.us/384d6e1da7a0663814f2454136cad85b443fb4041408605850.mp4"/>
	<video volume="0" filename="http://stupeflix-tmp.s3.amazonaws.com/MVI_2906.MOV.ff.mp4"/>
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	</video>
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	</body>
	</movie>