diff --git a/src/canvas.cpp b/src/canvas.cpp
index 4dc4d60..fb81030 100644
--- a/src/canvas.cpp
+++ b/src/canvas.cpp
@@ -444,7 +444,7 @@ std::vector<Canvas::StrokeFrame> Canvas::stroke_draw_compute(Stroke& stroke) con
             +dx - dy, // D - bottom-right
         };
 
-        glm::vec2 mixer_sz(m_mixer.getWidth(), m_mixer.getHeight());
+        glm::vec2 mixer_sz(App::I.width, App::I.height);
         glm::vec2 mixer_bb_min(mixer_sz);
         glm::vec2 mixer_bb_max(0, 0);
         for (int j = 0; j < 4; j++)
@@ -466,7 +466,7 @@ std::vector<Canvas::StrokeFrame> Canvas::stroke_draw_compute(Stroke& stroke) con
             B[j].uvs2 = p / mixer_sz;
         }
         
-        f.m_mixer_rect = { glm::floor(mixer_bb_min), glm::ceil(mixer_bb_max - mixer_bb_min) };
+        f.m_mixer_rect = glm::vec4(glm::floor(mixer_bb_min), glm::ceil(mixer_bb_max - mixer_bb_min)) / App::I.zoom;
         f.col = glm::vec4(s.col, 1);
         f.flow = s.flow;
         f.opacity = s.opacity;
diff --git a/src/node_canvas.cpp b/src/node_canvas.cpp
index 025bdf0..68045f7 100644
--- a/src/node_canvas.cpp
+++ b/src/node_canvas.cpp
@@ -440,26 +440,6 @@ void NodeCanvas::draw()
         }
     }
 
-    if (zoom > 1.f)
-    {
-        m_rtt.unbindFramebuffer();
-
-        glClearColor(1, 1, 1, 0);
-        glClear(GL_COLOR_BUFFER_BIT);
-        glViewport(c.x + App::I.off_x, c.y + App::I.off_y, c.z, c.w);
-
-        // draw the canvas
-        m_sampler_linear.bind(0);
-        glActiveTexture(GL_TEXTURE0);
-        m_rtt.bindTexture();
-        ShaderManager::use(kShader::Texture);
-        ShaderManager::u_int(kShaderUniform::Tex, 0);
-        ShaderManager::u_mat4(kShaderUniform::MVP, glm::ortho<float>(-1, 1, -1, 1));
-        m_face_plane.draw_fill();
-        m_rtt.unbindTexture();
-    }
-
-
     glDisable(GL_DEPTH_TEST);
     if (m_canvas->m_smask_active || m_canvas->m_current_mode == kCanvasMode::Copy || m_canvas->m_current_mode == kCanvasMode::Cut)
     {
@@ -479,6 +459,25 @@ void NodeCanvas::draw()
     for (auto& mode : *m_canvas->m_mode)
         mode->on_Draw(ortho_proj, proj, camera);
 
+    if (zoom > 1.f)
+    {
+        m_rtt.unbindFramebuffer();
+
+        glClearColor(1, 1, 1, 0);
+        glClear(GL_COLOR_BUFFER_BIT);
+        glViewport(c.x + App::I.off_x, c.y + App::I.off_y, c.z, c.w);
+
+        // draw the canvas
+        m_sampler_linear.bind(0);
+        glActiveTexture(GL_TEXTURE0);
+        m_rtt.bindTexture();
+        ShaderManager::use(kShader::Texture);
+        ShaderManager::u_int(kShaderUniform::Tex, 0);
+        ShaderManager::u_mat4(kShaderUniform::MVP, glm::ortho<float>(-1, 1, -1, 1));
+        m_face_plane.draw_fill();
+        m_rtt.unbindTexture();
+    }
+
     blend ? glEnable(GL_BLEND) : glDisable(GL_BLEND);
     depth ? glEnable(GL_DEPTH_TEST) : glDisable(GL_DEPTH_TEST);
     m_sampler.unbind();