//vertex
#version 120

varying vec4 position;
varying vec2 texCoordVarying;

float pixelate(float width, float value){
    return float(floor(value * (1.0 / width))) / (1.0 / width);
}

void main(){
    texCoordVarying = gl_MultiTexCoord0.xy;

    vec4 position = gl_Vertex;

    position.z = pixelate(0.1, texCoordVarying.y) * 500.0;

    gl_Position = gl_ProjectionMatrix * gl_ModelViewMatrix *position;
}


//fragment

#version 120

uniform sampler2D tex0;
varying vec2 texCoordVarying;

void main()
{
    gl_FragColor = texture2D(tex0,texCoordVarying);
}