CameraLens: use ParametersDirty rather than AllDirty

AllDirty would force a lot of recomputations that aren't needed.
When the CameraLens changes the only things we need to do are:
- update projection matrix in the shader and the frustum culling

Those things are performed in the RenderCommand update stage which
is triggered with ParametersDirty

Change-Id: I27241f3ec323182b19fca7e5528d851680eeec8c
Reviewed-by: Mike Krus <mike.krus@kdab.com>
(cherry picked from commit ca43cd97277132341676d10a515419a5390c9292)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/render/backend/cameralens.cpp b/src/render/backend/cameralens.cpp
index e1b3e96d9..2a1f2f5a9 100644
--- a/src/render/backend/cameralens.cpp
+++ b/src/render/backend/cameralens.cpp
@@ -133,12 +133,12 @@ void CameraLens::syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTim
     const Matrix4x4 projectionMatrix(node->projectionMatrix());
     if (projectionMatrix != m_projection) {
         m_projection = projectionMatrix;
-        markDirty(AbstractRenderer::AllDirty);
+        markDirty(AbstractRenderer::ParameterDirty);
     }
 
     if (!qFuzzyCompare(node->exposure(), m_exposure)) {
         m_exposure = node->exposure();
-        markDirty(AbstractRenderer::AllDirty);
+        markDirty(AbstractRenderer::ParameterDirty);
     }
 
     const QCameraLensPrivate *d = static_cast<const QCameraLensPrivate *>(QNodePrivate::get(node));