diff --git a/examples/jsm/csm/CSMFrustum.js b/examples/jsm/csm/CSMFrustum.js
index 8e8a97df6e1217..f34d26ff577428 100644
--- a/examples/jsm/csm/CSMFrustum.js
+++ b/examples/jsm/csm/CSMFrustum.js
@@ -27,6 +27,13 @@ class CSMFrustum {
 		 */
 		this.zNear = data.webGL === true ? - 1 : 0;
 
+		/**
+		 * The zFar value.
+		 *
+		 * @type {number}
+		 */
+		this.zFar = 1;
+
 		/**
 		 * An object representing the vertices of the near and
 		 * far plane in view space.
@@ -54,6 +61,15 @@ class CSMFrustum {
 
 		}
 
+		// In case of reversed depth buffer, zNear and zFar must be 1 and 0
+		// respectively regardless of the coordinate system.
+		if ( data.reversedDepth === true ) {
+
+			this.zNear = 1;
+			this.zFar = 0;
+
+		}
+
 	}
 
 	/**
@@ -66,6 +82,7 @@ class CSMFrustum {
 	setFromProjectionMatrix( projectionMatrix, maxFar ) {
 
 		const zNear = this.zNear;
+		const zFar = this.zFar;
 		const isOrthographic = projectionMatrix.elements[ 2 * 4 + 3 ] === 0;
 
 		inverseProjectionMatrix.copy( projectionMatrix ).invert();
@@ -85,10 +102,10 @@ class CSMFrustum {
 
 		} );
 
-		this.vertices.far[ 0 ].set( 1, 1, 1 );
-		this.vertices.far[ 1 ].set( 1, - 1, 1 );
-		this.vertices.far[ 2 ].set( - 1, - 1, 1 );
-		this.vertices.far[ 3 ].set( - 1, 1, 1 );
+		this.vertices.far[ 0 ].set( 1, 1, zFar );
+		this.vertices.far[ 1 ].set( 1, - 1, zFar );
+		this.vertices.far[ 2 ].set( - 1, - 1, zFar );
+		this.vertices.far[ 3 ].set( - 1, 1, zFar );
 		this.vertices.far.forEach( function ( v ) {
 
 			v.applyMatrix4( inverseProjectionMatrix );
@@ -202,6 +219,7 @@ class CSMFrustum {
  *
  * @typedef {Object} CSMFrustum~Data
  * @property {boolean} [webGL] - Whether this CSM frustum is used with WebGL or WebGPU.
+ * @property {boolean} [reversedDepth] - Whether reversed depth buffer is enabled.
  * @property {Matrix4} [projectionMatrix] - A projection matrix usually of the scene's camera.
  * @property {number} [maxFar] - The maximum far value.
  **/
diff --git a/examples/jsm/csm/CSMShadowNode.js b/examples/jsm/csm/CSMShadowNode.js
index 4e2ae5b55c228d..84984a8f708029 100644
--- a/examples/jsm/csm/CSMShadowNode.js
+++ b/examples/jsm/csm/CSMShadowNode.js
@@ -159,7 +159,10 @@ class CSMShadowNode extends ShadowBaseNode {
 
 		this.camera = camera;
 
-		const data = { webGL: renderer.coordinateSystem === WebGLCoordinateSystem };
+		const data = {
+			webGL: renderer.coordinateSystem === WebGLCoordinateSystem,
+			reversedDepth: renderer.reversedDepthBuffer
+		};
 		this.mainFrustum = new CSMFrustum( data );
 
 		const light = this.light;
diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index a63971cd0bce20..ab28669f542ae7 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -728,7 +728,7 @@ class WebGLRenderer {
 
 			if ( _outputBufferType === UnsignedByteType ) {
 
-				error( 'THREE.WebGLRenderer: setEffects() requires outputBufferType set to HalfFloatType or FloatType.' );
+				error( 'WebGLRenderer: setEffects() requires outputBufferType set to HalfFloatType or FloatType.' );
 				return;
 
 			}
@@ -739,7 +739,7 @@ class WebGLRenderer {
 
 					if ( effects[ i ].isOutputPass === true ) {
 
-						warn( 'THREE.WebGLRenderer: OutputPass is not needed in setEffects(). Tone mapping and color space conversion are applied automatically.' );
+						warn( 'WebGLRenderer: OutputPass is not needed in setEffects(). Tone mapping and color space conversion are applied automatically.' );
 						break;
 
 					}
diff --git a/src/renderers/webgl-fallback/WebGLBackend.js b/src/renderers/webgl-fallback/WebGLBackend.js
index f63ee32669d2f0..1ef89923d982d8 100644
--- a/src/renderers/webgl-fallback/WebGLBackend.js
+++ b/src/renderers/webgl-fallback/WebGLBackend.js
@@ -1621,7 +1621,7 @@ class WebGLBackend extends Backend {
 					const fragmentErrors = this._getShaderErrors( gl, glFragmentShader, 'fragment' );
 
 					error(
-						'THREE.WebGLProgram: Shader Error ' + gl.getError() + ' - ' +
+						'WebGLProgram: Shader Error ' + gl.getError() + ' - ' +
 						'VALIDATE_STATUS ' + gl.getProgramParameter( programGPU, gl.VALIDATE_STATUS ) + '\n\n' +
 						'Program Info Log: ' + programLog + '\n' +
 						vertexErrors + '\n' +
diff --git a/src/renderers/webgl/WebGLProgram.js b/src/renderers/webgl/WebGLProgram.js
index f009b39224e76d..743a04b9402dbb 100644
--- a/src/renderers/webgl/WebGLProgram.js
+++ b/src/renderers/webgl/WebGLProgram.js
@@ -888,7 +888,7 @@ function WebGLProgram( renderer, cacheKey, parameters, bindingStates ) {
 					const fragmentErrors = getShaderErrors( gl, glFragmentShader, 'fragment' );
 
 					error(
-						'THREE.WebGLProgram: Shader Error ' + gl.getError() + ' - ' +
+						'WebGLProgram: Shader Error ' + gl.getError() + ' - ' +
 						'VALIDATE_STATUS ' + gl.getProgramParameter( program, gl.VALIDATE_STATUS ) + '\n\n' +
 						'Material Name: ' + self.name + '\n' +
 						'Material Type: ' + self.type + '\n\n' +