diff --git a/lib/src/main/java/com/github/stephengold/vsport/GlobalUniformValues.java b/lib/src/main/java/com/github/stephengold/vsport/GlobalUniformValues.java
index 47561409..263f10fb 100644
--- a/lib/src/main/java/com/github/stephengold/vsport/GlobalUniformValues.java
+++ b/lib/src/main/java/com/github/stephengold/vsport/GlobalUniformValues.java
@@ -32,7 +32,6 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 import java.nio.ByteBuffer;
 import org.joml.Matrix4f;
 import org.joml.Vector3f;
-import org.joml.Vector4f;
 
 /**
  * Values to be written to a global Uniform Buffer Object (UBO).