Fix Billboard individual mode in RH (#16878)

Co-authored-by: David Catuhe <[email protected]>

Author: deltakosh

packages/dev/core/src/Meshes/transformNode.ts

@@ -1211,7 +1211,9 @@ export class TransformNode extends Node {
                 // Get camera view matrix
                 TmpVectors.Matrix[1].copyFrom(camera.getViewMatrix());
 
-                if (this.getScene().useRightHandedSystem) {
+                const isRH = this.getScene().useRightHandedSystem;
+
+                if (isRH) {
                     // This operation is necessary to cancel out the scaling component of the matrix without decomposing it.
                     // It's a trick to extract only the rotation part.
                     TmpVectors.Matrix[1].multiplyToRef(TransformNode._TmpRHRestore, TmpVectors.Matrix[1]);
@@ -1238,6 +1240,10 @@ export class TransformNode extends Node {
                         eulerAngles.z = 0;
                     }
 
+                    if (isRH) {
+                        eulerAngles.y += Math.PI; // Yaw correction
+                    }
+
                     Matrix.RotationYawPitchRollToRef(eulerAngles.y, eulerAngles.x, eulerAngles.z, TmpVectors.Matrix[0]);
                 }
                 this._worldMatrix.setTranslationFromFloats(0, 0, 0);