Use polygon offset instead of fixed shadow bias gives better result

qgis · Jan 31, 2022 · 6cb2f64 · 6cb2f64
1 parent 15d48a1
commit 6cb2f64
Show file tree

Hide file tree

Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/src/3d/qgsshadowrenderingframegraph.cpp b/src/3d/qgsshadowrenderingframegraph.cpp
@@ -146,6 +146,11 @@ Qt3DRender::QFrameGraphNode *QgsShadowRenderingFrameGraph::constructShadowRender
   shadowCullFace->setMode( Qt3DRender::QCullFace::CullingMode::Front );
   mShadowRenderStateSet->addRenderState( shadowCullFace );
 
+  Qt3DRender::QPolygonOffset *polygonOffset = new Qt3DRender::QPolygonOffset;
+  polygonOffset->setDepthSteps( 4.0 );
+  polygonOffset->setScaleFactor( 1.1 );
+  mShadowRenderStateSet->addRenderState( polygonOffset );
+
   return mLightCameraSelectorShadowPass;
 }
 

diff --git a/src/ui/3d/shadowrenderingsettingswidget.ui b/src/ui/3d/shadowrenderingsettingswidget.ui
@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>416</width>
+    <width>482</width>
     <height>139</height>
    </rect>
   </property>
@@ -60,7 +60,7 @@
       <double>0.000010000000000</double>
      </property>
      <property name="value">
-      <double>0.000010000000000</double>
+      <double>0.000000000000000</double>
      </property>
     </widget>
    </item>