<!-- NEW5 — TEST 5 · THE BEND AT THE HEART · part 381 -->
era: null,

		lights: lights,

		transmissionRenderTarget: {},
		textureUnits: 0
	};

	return {
		init: init,
		state: state,
		setupLights: setupLights,
		setupLightsView: setupLightsView,

		pushLight: pushLight,
		pushShadow: pushShadow,
		pushLightProbeGrid: pushLightProbeGrid
	};

}

function WebGLRenderStates( extensions ) {

	let renderStates = new WeakMap();

	function get( scene, renderCallDepth = 0 ) {

		const renderStateArray = renderStates.get( scene );
		let renderState;

		if ( renderStateArray === undefined ) {

			renderState = new WebGLRenderState( extensions );
			renderStates.set( scene, [ renderState ] );

		} else {

			if ( renderCallDepth >= renderStateArray.length ) {

				renderState = new WebGLRenderState( extensions );
				renderStateArray.push( renderState );

			} else {

				renderState = renderStateArray[ renderCallDepth ];

			}

		}

		return renderState;

	}

	function dispose() {

		renderStates = new WeakMap();

	}

	return {
		get: get,
		dispose: dispose
	};

}

const vertex = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";

const fragment = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ).rg;\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ).r;\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( max( 0.0, squared_mean - mean * mean ) );\n\tgl_FragColor = vec4( mean, std_dev, 0.0, 1.0 );\n}";

const _cubeDirections = [
	/*@__PURE__*/ new Vector3( 1, 0, 0 ), /*@__PURE__*/ new Vector3( -1, 0, 0 ), /*@__PURE__*/ new Vector3( 0, 1, 0 ),
	/*@__PURE__*/ new Vector3( 0, -1, 0 ), /*@__PURE__*/ new Vector3( 0, 0, 1 ), /*@__PURE__*/ new Vector3( 0, 0, -1 )
];

const _cubeUps = [
	/*@__PURE__*/ new Vector3( 0, -1, 0 ), /*@__PURE__*/ new Vector3( 0, -1, 0 ), /*@__PURE__*/ new Vector3( 0, 0, 1 ),
	/*@__PURE__*/ new Vector3( 0, 0, -1 ), /*@__PURE__*/ new Vector3( 0, -1, 0 ), /*@__PURE__*/ new Vector3( 0, -1, 0 )
];

const _projScreenMatrix = /*@__PURE__*/ new Matrix4();
const _lightPositionWorld = /*@__PURE__*/ new Vector3();
const _lookTarget = /*@__PURE__*/ new Vector3();

function WebGLShadowMap( renderer, objects, capabilities ) {

	let _frustum = new Frustum();

	const _shadowMapSize = new Vector2(),
		_viewportSize = new Vector2(),

		_viewport = new Vector4(),

		_depthMaterial = new MeshDepthMaterial(),
		_distanceMaterial = new MeshDistanceMaterial(),

		_materialCache = {},

		_maxTextureSize = capabilities.maxTextureSize;

	const shadowSide = { [ FrontSide ]: BackSide, [ BackSide ]: FrontSide, [ DoubleSide ]: DoubleSide };

	const shadowMaterialVertical = new ShaderMaterial( {
		defines: {
			VSM_SAMPLES: 8
		},
		uniforms: {
			shadow_pass: { value: null },
			resolution: { value: new Vector2() },
			radius: { value: 4.0 }
		},

		vertexShader: vertex,
		fragmentShader: fragment

	} );

	const shadowMaterialHorizontal = shadowMaterialVertical.clone();
	shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1;

	const fullScreenTri = new BufferGeometry();
	fullScreenTri.setAttribute(
		'position',
		new BufferAttribute(
			new Float32Array( [ -1, -1, 0.5, 3, -1, 0.5, -1, 3, 0.5 ] ),
			3
		)
	);

	const fullScreenMesh = new Mesh( fullScreenTri, shadowMaterialVertical );

	const scope = this;

	this.enabled = false;

	this.autoUpdate = true;
	this.needsUpdate = false;

	this.type = PCFShadowMap;
	let _previousType = this.type;

	this.render = function ( lights, scene, camera ) {

		if ( scope.enabled === false ) return;
		if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;

		if ( lights.length === 0 ) return;

		if ( this.type === PCFSoftShadowMap ) {

			warn( 'WebGLShadowMap: PCFSoftShadowMap has been removed. Using PCFShadowMap instead.' );
			this.type = PCFShadowMap;

		}

		const currentRenderTarget = renderer.getRenderTarget();
		const activeCubeFace = renderer.getActiveCubeFace();
		const activeMipmapLevel = renderer.getActiveMipmapLevel();

		const _state = renderer.state;

		// Set GL state for depth map.
		_state.setBlending( NoBlending );

		if ( _state.buffers.depth.getReversed() === true ) {

			_state.buffers.color.setClear( 0, 0, 0, 0 );

		} else {

			_state.buffers.col