diff --git a/examples/jsm/nodes/display/ColorAdjustmentNode.js b/examples/jsm/nodes/display/ColorAdjustmentNode.js
index 463c5b4f6e026f..b321573eeddd8b 100644
--- a/examples/jsm/nodes/display/ColorAdjustmentNode.js
+++ b/examples/jsm/nodes/display/ColorAdjustmentNode.js
@@ -2,7 +2,7 @@ import TempNode from '../core/TempNode.js';
 import { dot, mix } from '../math/MathNode.js';
 import { add } from '../math/OperatorNode.js';
 import { addNodeClass } from '../core/Node.js';
-import { addNodeElement, tslFn, nodeProxy, float, vec3, mat3 } from '../shadernode/ShaderNode.js';
+import { addNodeElement, tslFn, nodeProxy, float, vec3 } from '../shadernode/ShaderNode.js';
 
 const saturationNode = tslFn( ( { color, adjustment } ) => {
 
@@ -23,15 +23,11 @@ const vibranceNode = tslFn( ( { color, adjustment } ) => {
 
 const hueNode = tslFn( ( { color, adjustment } ) => {
 
-	const RGBtoYIQ = mat3( 0.299, 0.587, 0.114, 0.595716, - 0.274453, - 0.321263, 0.211456, - 0.522591, 0.311135 );
-	const YIQtoRGB = mat3( 1.0, 0.9563, 0.6210, 1.0, - 0.2721, - 0.6474, 1.0, - 1.107, 1.7046 );
+	const k = vec3( 0.57735, 0.57735, 0.57735 );
 
-	const yiq = RGBtoYIQ.mul( color );
+	const cosAngle = adjustment.cos();
 
-	const hue = yiq.z.atan2( yiq.y ).add( adjustment );
-	const chroma = yiq.yz.length();
-
-	return YIQtoRGB.mul( vec3( yiq.x, chroma.mul( hue.cos() ), chroma.mul( hue.sin() ) ) );
+	return vec3( color.rgb.mul( cosAngle ).add( k.cross( color.rgb ).mul( adjustment.sin() ).add( k.mul( dot( k, color.rgb ).mul( cosAngle.oneMinus() ) ) ) ) );
 
 } );
 
diff --git a/examples/jsm/nodes/lighting/EnvironmentNode.js b/examples/jsm/nodes/lighting/EnvironmentNode.js
index d027f5b6417949..8897ee90e1b1bd 100644
--- a/examples/jsm/nodes/lighting/EnvironmentNode.js
+++ b/examples/jsm/nodes/lighting/EnvironmentNode.js
@@ -1,6 +1,7 @@
 import LightingNode from './LightingNode.js';
 import { cache } from '../core/CacheNode.js';
 import { context } from '../core/ContextNode.js';
+import { maxMipLevel } from '../utils/MaxMipLevelNode.js';
 import { roughness, clearcoatRoughness } from '../core/PropertyNode.js';
 import { equirectUV } from '../utils/EquirectUVNode.js';
 import { specularMIPLevel } from '../utils/SpecularMIPLevelNode.js';
@@ -8,7 +9,7 @@ import { cameraViewMatrix } from '../accessors/CameraNode.js';
 import { transformedClearcoatNormalView, transformedNormalView, transformedNormalWorld } from '../accessors/NormalNode.js';
 import { positionViewDirection } from '../accessors/PositionNode.js';
 import { addNodeClass } from '../core/Node.js';
-import { float, vec2 } from '../shadernode/ShaderNode.js';
+import { vec2 } from '../shadernode/ShaderNode.js';
 import { cubeTexture } from '../accessors/CubeTextureNode.js';
 import { reference } from '../accessors/ReferenceNode.js';
 
@@ -166,14 +167,9 @@ const createIrradianceContext = ( normalWorldNode ) => {
 			return node;
 
 		},
-		getTextureLevel: () => {
-
-			return float( 1 );
-
-		},
-		getTextureLevelAlgorithm: ( textureNode, levelNode ) => {
+		getTextureLevel: ( textureNode ) => {
 
-			return specularMIPLevel( textureNode, levelNode );
+			return maxMipLevel( textureNode );
 
 		}
 	};