#ifdef USE_SHADOWMAP

	uniform sampler2D shadowMap[ MAX_SHADOWS ];
	uniform vec2 shadowMapSize[ MAX_SHADOWS ];

	uniform float shadowDarkness[ MAX_SHADOWS ];
	uniform float shadowBias[ MAX_SHADOWS ];

	in vec4 vShadowCoord[ MAX_SHADOWS ];

	float unpackDepth( const in vec4 rgba_depth ) {

		const vec4 bit_shift = vec4( 1.0 / ( 256.0 * 256.0 * 256.0 ), 1.0 / ( 256.0 * 256.0 ), 1.0 / 256.0, 1.0 );
		float depth = dot( rgba_depth, bit_shift );
		return depth;

	}

#endif