Keep source compat for internal setProjectionMatrix users

Add default values to the new index argument so Quick 3D
compiles as-is.

Task-number: QTBUG-114871
Change-Id: Ifeca9af696d7d8e59fea390adae3b1e42e61f991
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/quick/scenegraph/coreapi/qsgabstractrenderer_p.h b/src/quick/scenegraph/coreapi/qsgabstractrenderer_p.h
index c3b47282a1..5d7a3b13b6 100644
--- a/src/quick/scenegraph/coreapi/qsgabstractrenderer_p.h
+++ b/src/quick/scenegraph/coreapi/qsgabstractrenderer_p.h
@@ -54,8 +54,8 @@ public:
     void setProjectionMatrixToRect(const QRectF &rect, MatrixTransformFlags flags);
     void setProjectionMatrixToRect(const QRectF &rect, MatrixTransformFlags flags,
                                    bool nativeNDCFlipY);
-    void setProjectionMatrix(const QMatrix4x4 &matrix, int index);
-    void setProjectionMatrixWithNativeNDC(const QMatrix4x4 &matrix, int index);
+    void setProjectionMatrix(const QMatrix4x4 &matrix, int index = 0);
+    void setProjectionMatrixWithNativeNDC(const QMatrix4x4 &matrix, int index = 0);
     QMatrix4x4 projectionMatrix(int index) const;
     QMatrix4x4 projectionMatrixWithNativeNDC(int index) const;
     int projectionMatrixCount() const;