export default /* glsl */`

#if NUM_SPOT_LIGHT_COORDS > 0

	uniform mat4 spotLightMatrix[ NUM_SPOT_LIGHT_COORDS ];
	varying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];

#endif

#ifdef USE_SHADOWMAP

	#if NUM_DIR_LIGHT_SHADOWS > 0

		uniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];
		varying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];

		struct DirectionalLightShadow {
			float shadowBias;
			float shadowNormalBias;
			float shadowRadius;
			vec2 shadowMapSize;
		};

		uniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];

	#endif

	#if NUM_SPOT_LIGHT_SHADOWS > 0

		struct SpotLightShadow {
			float shadowBias;
			float shadowNormalBias;
			float shadowRadius;
			vec2 shadowMapSize;
		};

		uniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];

	#endif

	#if NUM_POINT_LIGHT_SHADOWS > 0

		uniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];
		varying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];

		struct PointLightShadow {
			float shadowBias;
			float shadowNormalBias;
			float shadowRadius;
			vec2 shadowMapSize;
			float shadowCameraNear;
			float shadowCameraFar;
		};

		uniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];

	#endif

	/*
	#if NUM_RECT_AREA_LIGHTS > 0

		// TODO (abelnation): uniforms for area light shadows

	#endif
	*/

#endif
`;