Handle editor preview depth prepass better

Editor now shows everything with depth prepass enabled.
Scene camera shows layers how depth prepass was set in their advanced
properties.

Task-number: QT3DS-4174
Change-Id: I93259fb26a4932b96729442d924e0685ee33562c
Reviewed-by: Antti Määttä <antti.maatta@qt.io>
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>

1 files changed, 12 insertions, 3 deletions

diff --git a/src/Authoring/Qt3DStudio/Render/StudioRendererTranslation.cpp b/src/Authoring/Qt3DStudio/Render/StudioRendererTranslation.cpp
index e261fda1..d24f1061 100644
--- a/src/Authoring/Qt3DStudio/Render/StudioRendererTranslation.cpp
+++ b/src/Authoring/Qt3DStudio/Render/StudioRendererTranslation.cpp
@@ -2881,17 +2881,17 @@ void STranslation::Render(int inWidgetId, bool inDrawGuides, bool scenePreviewPa
             if (m_axisHelperEnabled)
                 m_Context.GetRenderer().AddRenderWidget(*m_AxisHelperWidget);
         }
-
+        QVector<bool> layerDepthPrepasses = {};
         if (scenePreviewPass) {
             m_Context.GetRenderContext().SetViewport(GetPreviewViewport());
             m_Context.SetSceneColor(Option<QT3DSVec4>());
-
+        } else {
             SLayer *child = m_Scene->m_FirstChild;
             do {
+                layerDepthPrepasses.append(child->m_Flags.IsLayerEnableDepthPrepass());
                 child->m_Flags.SetLayerEnableDepthPrepass(true);
                 child = (SLayer *)child->m_NextSibling;
             } while (child);
-
         }
 
         m_Scene->PrepareForRender(m_Context);
@@ -3068,6 +3068,15 @@ void STranslation::Render(int inWidgetId, bool inDrawGuides, bool scenePreviewPa
             theRenderContext.SetDepthWriteEnabled( false );
             m_Context.GetRenderer().RenderQuad( theDimensions, theVP, *m_PickBuffer );
         }*/
+        if (!scenePreviewPass) {
+            SLayer *child = m_Scene->m_FirstChild;
+            int childIndex = 0;
+            do {
+                child->m_Flags.SetLayerEnableDepthPrepass(layerDepthPrepasses.at(childIndex));
+                child = (SLayer *)child->m_NextSibling;
+                ++childIndex;
+            } while (child);
+        }
     }
 }