diff --git a/src/declarativeimports/core/fadingmaterial.frag b/src/declarativeimports/core/fadingmaterial.frag
--- a/src/declarativeimports/core/fadingmaterial.frag
+++ b/src/declarativeimports/core/fadingmaterial.frag
@@ -1,10 +1,12 @@
 varying highp vec2 v_coord;
 uniform sampler2D u_src;
+uniform vec4 u_src_rect;
 uniform sampler2D u_target;
+uniform vec4 u_target_rect;
 uniform highp float u_transitionProgress;
 uniform lowp float qt_Opacity;
 void main() {
-    lowp vec4 tex1 = texture2D(u_target, v_coord);
-    lowp vec4 tex2 = texture2D(u_src, v_coord);
+    lowp vec4 tex1 = texture2D(u_target, u_target_rect.xy + u_target_rect.zw * v_coord);
+    lowp vec4 tex2 = texture2D(u_src, u_src_rect.xy + u_src_rect.zw * v_coord);
     gl_FragColor = mix(tex2, tex1, u_transitionProgress) * qt_Opacity;
 }
diff --git a/src/declarativeimports/core/fadingmaterial_core.frag b/src/declarativeimports/core/fadingmaterial_core.frag
--- a/src/declarativeimports/core/fadingmaterial_core.frag
+++ b/src/declarativeimports/core/fadingmaterial_core.frag
@@ -2,11 +2,13 @@
 in highp vec2 v_coord;
 out vec4 fragColor;
 uniform sampler2D u_src;
+uniform vec4 u_src_rect;
 uniform sampler2D u_target;
+uniform vec4 u_target_rect;
 uniform highp float u_transitionProgress;
 uniform lowp float qt_Opacity;
 void main() {
-    lowp vec4 tex1 = texture2D(u_target, v_coord);
-    lowp vec4 tex2 = texture2D(u_src, v_coord);
+    lowp vec4 tex1 = texture2D(u_target, u_target_rect.xy + u_target_rect.zw * v_coord);
+    lowp vec4 tex2 = texture2D(u_src, u_src_rect.xy + u_src_rect.zw * v_coord);
     fragColor = mix(tex2, tex1, u_transitionProgress) * qt_Opacity;
 }
diff --git a/src/declarativeimports/core/fadingnode.cpp b/src/declarativeimports/core/fadingnode.cpp
--- a/src/declarativeimports/core/fadingnode.cpp
+++ b/src/declarativeimports/core/fadingnode.cpp
@@ -43,6 +43,8 @@
 private:
     QOpenGLFunctions *glFuncs  = nullptr;
     int m_progressId = 0;
+    int m_sourceRectId = 0;
+    int m_targetRectId = 0;
 };
 
 
@@ -62,13 +64,17 @@
     if (!oldState || oldState->source != newState->source) {
         glFuncs->glActiveTexture(GL_TEXTURE1);
         newState->source->bind();
+        QRectF rect = newState->source->normalizedTextureSubRect();
+        program()->setUniformValue(m_sourceRectId, QVector4D(rect.x(), rect.y(), rect.width(), rect.height()));
         // reset the active texture back to 0 after we changed it to something else
         glFuncs->glActiveTexture(GL_TEXTURE0);
     }
 
     if (!oldState || oldState->target != newState->target) {
         glFuncs->glActiveTexture(GL_TEXTURE0);
         newState->target->bind();
+        QRectF rect = newState->target->normalizedTextureSubRect();
+        program()->setUniformValue(m_targetRectId, QVector4D(rect.x(), rect.y(), rect.width(), rect.height()));
     }
 
     if (!oldState || oldState->progress != newState->progress) {
@@ -87,7 +93,10 @@
     program()->bind();
     program()->setUniformValue("u_src", 0);
     program()->setUniformValue("u_target", 1);
+
     m_progressId = program()->uniformLocation("u_transitionProgress");
+    m_sourceRectId = program()->uniformLocation("u_src_rect");
+    m_targetRectId = program()->uniformLocation("u_target_rect");
 }
 
 
diff --git a/src/declarativeimports/core/iconitem.cpp b/src/declarativeimports/core/iconitem.cpp
--- a/src/declarativeimports/core/iconitem.cpp
+++ b/src/declarativeimports/core/iconitem.cpp
@@ -481,9 +481,9 @@
         if (!animatingNode || m_textureChanged) {
             delete oldNode;
 
-            QSGTexture *source = window()->createTextureFromImage(m_iconPixmap.toImage());
+            QSGTexture *source = window()->createTextureFromImage(m_oldIconPixmap.toImage(), QQuickWindow::TextureCanUseAtlas);
             source->setFiltering(m_smooth ? QSGTexture::Linear : QSGTexture::Nearest);
-            QSGTexture *target = window()->createTextureFromImage(m_oldIconPixmap.toImage());
+            QSGTexture *target = window()->createTextureFromImage(m_iconPixmap.toImage(), QQuickWindow::TextureCanUseAtlas);
             target->setFiltering(m_smooth ? QSGTexture::Linear : QSGTexture::Nearest);
             animatingNode = new FadingNode(source, target);
             m_sizeChanged = true;