diff --git a/examples/js/renderers/Projector.js b/examples/js/renderers/Projector.js
index 221a087fce310a0fec43d21db061638cf98b4e6a..e0b8930b0ad104a4d2c0325bb09ff9420ae93a7f 100644
--- a/examples/js/renderers/Projector.js
+++ b/examples/js/renderers/Projector.js
@@ -349,7 +349,7 @@ THREE.Projector = function () {
 
 				var material = object.material;
 
-				if ( material === null || material.visible === false ) return;
+				if ( material.visible === false ) return;
 
 				if ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) {
 
diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index a52834b9c318e47f13704c7dda6c0fe2836bb094..2d03ce1cbe00160c94102b45b1c7bdccf6a6893d 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -1727,7 +1727,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 					material = materials[ j ];
 
-					if ( material === null || material.visible === false ) continue;
+					if ( material.visible === false ) continue;
 
 					_this.renderBufferDirect( camera, lights, fog, geometry, material, object );
 
diff --git a/src/renderers/webgl/WebGLShadowMap.js b/src/renderers/webgl/WebGLShadowMap.js
index fdedd8750d7d2d06c4627baa9215a79c185bb7be..216c6d96d2be17f372c2283812997d33c78af85f 100644
--- a/src/renderers/webgl/WebGLShadowMap.js
+++ b/src/renderers/webgl/WebGLShadowMap.js
@@ -217,7 +217,7 @@ THREE.WebGLShadowMap = function ( _renderer, _lights, _objects ) {
 
 					objectMaterial = object.material.materials[ 0 ];
 
-					if ( objectMaterial === null || objectMaterial.visible === false ) continue;
+					if ( objectMaterial.visible === false ) continue;
 
 				}