diff --git a/docs/TSL.md b/docs/TSL.md
index 26a4f43cf18d40..e1dd74fd10e165 100644
--- a/docs/TSL.md
+++ b/docs/TSL.md
@@ -1483,11 +1483,11 @@ Example:
 ```js
 import { billboarding } from 'three/tsl';
 
-// Full billboarding (like particles) - faces camera in all directions
+// Default: Horizontal only (like trees) - rotates around Y axis only
 material.vertexNode = billboarding();
 
-// Horizontal only (like trees) - rotates around Y axis only
-material.vertexNode = billboarding( { horizontal: true, vertical: false } );
+// Full billboarding (like particles) - faces camera in all directions
+material.vertexNode = billboarding( { horizontal: true, vertical: true } );
 ```
 
 ## NodeMaterial
diff --git a/examples/games_fps.html b/examples/games_fps.html
index 6d00986d2c1cf8..9cfa166c94b2dc 100644
--- a/examples/games_fps.html
+++ b/examples/games_fps.html
@@ -203,7 +203,9 @@
 
 				if ( result ) {
 
-					playerOnFloor = result.normal.y > 0;
+					// determine if the surface we bumped into is something we can stand on
+
+					playerOnFloor = result.normal.y >= 0.15; // allow slopes up to ~81° but ignore sheer vertical walls
 
 					if ( ! playerOnFloor ) {
 
diff --git a/examples/webgpu_custom_fog.html b/examples/webgpu_custom_fog.html
index 9ef8604b10d00a..944a612f971006 100644
--- a/examples/webgpu_custom_fog.html
+++ b/examples/webgpu_custom_fog.html
@@ -53,8 +53,11 @@
 
 				// custom fog
 
-				const skyColor = color( 0xf0f5f5 );
-				const groundColor = color( 0xd0dee7 );
+				const skyColorValue = 0xf0f5f5;
+				const groundColorValue = 0xd0dee7;
+
+				const skyColor = color( skyColorValue );
+				const groundColor = color( groundColorValue );
 
 				const fogNoiseDistance = positionView.z.negate().smoothstep( 0, camera.far - 300 );
 
@@ -112,7 +115,7 @@
 
 				// lights
 
-				scene.add( new THREE.HemisphereLight( skyColor.value, groundColor.value, 0.5 ) );
+				scene.add( new THREE.HemisphereLight( skyColorValue, groundColorValue, 0.5 ) );
 
 				// geometry
 
diff --git a/src/objects/InstancedMesh.js b/src/objects/InstancedMesh.js
index b2dbb5745fa4a5..fcad3777288d98 100644
--- a/src/objects/InstancedMesh.js
+++ b/src/objects/InstancedMesh.js
@@ -213,10 +213,11 @@ class InstancedMesh extends Mesh {
 	 *
 	 * @param {number} index - The instance index.
 	 * @param {Color} color - The target object that is used to store the method's result.
+	 * @return {Color} A reference to the target color.
 	 */
 	getColorAt( index, color ) {
 
-		color.fromArray( this.instanceColor.array, index * 3 );
+		return color.fromArray( this.instanceColor.array, index * 3 );
 
 	}
 
@@ -225,10 +226,11 @@ class InstancedMesh extends Mesh {
 	 *
 	 * @param {number} index - The instance index.
 	 * @param {Matrix4} matrix - The target object that is used to store the method's result.
+	 * @return {Matrix4} A reference to the target matrix.
 	 */
 	getMatrixAt( index, matrix ) {
 
-		matrix.fromArray( this.instanceMatrix.array, index * 16 );
+		return matrix.fromArray( this.instanceMatrix.array, index * 16 );
 
 	}
 
@@ -314,6 +316,7 @@ class InstancedMesh extends Mesh {
 	 *
 	 * @param {number} index - The instance index.
 	 * @param {Color} color - The instance color.
+	 * @return {InstancedMesh} A reference to this instanced mesh.
 	 */
 	setColorAt( index, color ) {
 
@@ -324,6 +327,7 @@ class InstancedMesh extends Mesh {
 		}
 
 		color.toArray( this.instanceColor.array, index * 3 );
+		return this;
 
 	}
 
@@ -333,10 +337,12 @@ class InstancedMesh extends Mesh {
 	 *
 	 * @param {number} index - The instance index.
 	 * @param {Matrix4} matrix - The local transformation.
+	 * @return {InstancedMesh} A reference to this instanced mesh.
 	 */
 	setMatrixAt( index, matrix ) {
 
 		matrix.toArray( this.instanceMatrix.array, index * 16 );
+		return this;
 
 	}
 
@@ -347,6 +353,7 @@ class InstancedMesh extends Mesh {
 	 * @param {number} index - The instance index.
 	 * @param {Mesh} object -  A mesh which `morphTargetInfluences` property containing the morph target weights
 	 * of a single instance.
+	 * @return {InstancedMesh} A reference to this instanced mesh.
 	 */
 	setMorphAt( index, object ) {
 
@@ -377,6 +384,7 @@ class InstancedMesh extends Mesh {
 		array[ dataIndex ] = morphBaseInfluence;
 
 		array.set( objectInfluences, dataIndex + 1 );
+		return this;
 
 	}