diff --git a/examples/screenshots/webgl_furnace_test.jpg b/examples/screenshots/webgl_furnace_test.jpg
index cc6fc5567dc5ab9795c2fa87effae56249d88a6a..6e04e389b610e0df60b352f3212a6d20bed3bf58 100644
Binary files a/examples/screenshots/webgl_furnace_test.jpg and b/examples/screenshots/webgl_furnace_test.jpg differ
diff --git a/examples/webgl_furnace_test.html b/examples/webgl_furnace_test.html
index 8a2abd1bbe8d8ba019ed87cf44fd79ebef72d1a1..a7eb433387b03a6a83eb5b7a49e6bf3fb8175cd3 100644
--- a/examples/webgl_furnace_test.html
+++ b/examples/webgl_furnace_test.html
@@ -72,7 +72,7 @@
 
 				// camera
 
-				camera = new THREE.OrthographicCamera( frustumSize * aspect / - 2, frustumSize * aspect / 2, frustumSize / 2, frustumSize / - 2, 1, 30 ); 
+				camera = new THREE.OrthographicCamera( frustumSize * aspect / - 2, frustumSize * aspect / 2, frustumSize / 2, frustumSize / - 2, 1, 30 );
 				camera.position.set( 0, 0, 10 );
 
 			}
@@ -110,14 +110,14 @@
 				return new Promise( function ( resolve ) {
 
 					const envScene = new THREE.Scene();
-					envScene.background = new THREE.Color( COLOR ); // sRGB colorspace assumed, apparently
+					envScene.background = new THREE.Color( COLOR );
+					if ( renderer.outputEncoding === THREE.sRGBEncoding ) envScene.background.convertSRGBToLinear();
 
 					const pmremGenerator = new THREE.PMREMGenerator( renderer );
 					radianceMap = pmremGenerator.fromScene( envScene ).texture;
 					pmremGenerator.dispose();
 
 					scene.background = new THREE.Color( COLOR );
-					if ( renderer.outputEncoding !== THREE.sRGBEncoding ) scene.background.convertSRGBToLinear();
 
 					resolve();
 
diff --git a/src/extras/PMREMGenerator.js b/src/extras/PMREMGenerator.js
index 6eaeb85f48df2ccb9506d27061db6a9140d58f5b..dc7bc5c7406184d10a488ab96d84fe460e3a1f6e 100644
--- a/src/extras/PMREMGenerator.js
+++ b/src/extras/PMREMGenerator.js
@@ -296,7 +296,7 @@ class PMREMGenerator {
 
 			if ( background.isColor ) {
 
-				backgroundMaterial.color.copy( background ).convertSRGBToLinear();
+				backgroundMaterial.color.copy( background );
 				scene.background = null;
 
 				const alpha = convertLinearToRGBE( backgroundMaterial.color );
@@ -307,7 +307,7 @@ class PMREMGenerator {
 
 		} else {
 
-			backgroundMaterial.color.copy( _clearColor ).convertSRGBToLinear();
+			backgroundMaterial.color.copy( _clearColor );
 
 			const alpha = convertLinearToRGBE( backgroundMaterial.color );
 			backgroundMaterial.opacity = alpha;