diff --git a/src/d3d11/d3d11_swapchain.cpp b/src/d3d11/d3d11_swapchain.cpp
index 29985424..bffb8210 100644
--- a/src/d3d11/d3d11_swapchain.cpp
+++ b/src/d3d11/d3d11_swapchain.cpp
@@ -290,7 +290,7 @@ namespace dxvk {
       m_context->bindResourceView(BindingIds::Image, m_swapImageView, nullptr);
       m_context->bindResourceView(BindingIds::Gamma, m_gammaTextureView, nullptr);
 
-      m_context->draw(4, 1, 0, 0);
+      m_context->draw(3, 1, 0, 0);
 
       if (m_hud != nullptr)
         m_hud->render(m_context, info.imageExtent);
diff --git a/src/dxgi/shaders/dxgi_presenter_vert.vert b/src/dxgi/shaders/dxgi_presenter_vert.vert
index 98b6b325..1a9cde1d 100644
--- a/src/dxgi/shaders/dxgi_presenter_vert.vert
+++ b/src/dxgi/shaders/dxgi_presenter_vert.vert
@@ -1,16 +1,12 @@
 #version 450
 
-const vec4 g_vpos[4] = {
-  vec4(-1.0f, -1.0f, 0.0f, 1.0f),
-  vec4(-1.0f,  1.0f, 0.0f, 1.0f),
-  vec4( 1.0f, -1.0f, 0.0f, 1.0f),
-  vec4( 1.0f,  1.0f, 0.0f, 1.0f),
-};
-
 layout(location = 0) out vec2 o_texcoord;
 
 void main() {
-  vec4 pos = g_vpos[gl_VertexIndex];
-  o_texcoord  = 0.5f + 0.5f * pos.xy;
-  gl_Position = pos;
+  vec2 coord = vec2(
+    float(gl_VertexIndex & 2),
+    float(gl_VertexIndex & 1) * 2.0f);
+
+  o_texcoord  = coord;
+  gl_Position = vec4(-1.0f + 2.0f * coord, 0.0f, 1.0f);
 }
\ No newline at end of file