//  Copyright 2012 Kearwood Gilbert. All rights reserved.
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#extension GL_EXT_shadow_samplers : require

varying mediump vec4        shadowMapCoord1;
uniform sampler2DShadow     shadowTexture1;
uniform lowp sampler2D      depthFrame;
uniform mediump vec4        viewport;
uniform mediump vec3        light_color;

void main()
{
    if(gl_FragCoord.z > texture2D(depthFrame, vec2(gl_FragCoord.xy / viewport.zw)).r) discard;

    gl_FragColor = vec4(light_color, 1.0) * shadow2DProjEXT(shadowTexture1, shadowMapCoord1);
}