diff --git a/src/main/java/ru/bclib/sdf/operator/SDFCoordModify.java b/src/main/java/ru/bclib/sdf/operator/SDFCoordModify.java
index 42f56f87..e742060a 100644
--- a/src/main/java/ru/bclib/sdf/operator/SDFCoordModify.java
+++ b/src/main/java/ru/bclib/sdf/operator/SDFCoordModify.java
@@ -5,7 +5,7 @@
 import java.util.function.Consumer;
 
 public class SDFCoordModify extends SDFUnary {
-	private static Vector3f pos = new Vector3f();
+	private final Vector3f pos = new Vector3f();
 	private Consumer<Vector3f> function;
 	
 	public SDFCoordModify setFunction(Consumer<Vector3f> function) {
diff --git a/src/main/java/ru/bclib/sdf/operator/SDFRotation.java b/src/main/java/ru/bclib/sdf/operator/SDFRotation.java
index 67e65ebf..a4474993 100644
--- a/src/main/java/ru/bclib/sdf/operator/SDFRotation.java
+++ b/src/main/java/ru/bclib/sdf/operator/SDFRotation.java
@@ -4,7 +4,7 @@
 import com.mojang.math.Vector3f;
 
 public class SDFRotation extends SDFUnary {
-	private static final Vector3f POS = new Vector3f();
+	private final Vector3f pos = new Vector3f();
 	private Quaternion rotation;
 	
 	public SDFRotation setRotation(Vector3f axis, float rotationAngle) {
@@ -14,8 +14,8 @@ public SDFRotation setRotation(Vector3f axis, float rotationAngle) {
 	
 	@Override
 	public float getDistance(float x, float y, float z) {
-		POS.set(x, y, z);
-		POS.transform(rotation);
-		return source.getDistance(POS.x(), POS.y(), POS.z());
+		pos.set(x, y, z);
+		pos.transform(rotation);
+		return source.getDistance(pos.x(), pos.y(), pos.z());
 	}
 }