1 files changed, 6 insertions, 0 deletions

diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp
index 7db055ea0..8155f6e2e 100644
--- a/src/video_core/engines/maxwell_3d.cpp
+++ b/src/video_core/engines/maxwell_3d.cpp
@@ -44,6 +44,12 @@ void Maxwell3D::InitializeRegisterDefaults() {
         viewport.depth_range_near = 0.0f;
         viewport.depth_range_far = 1.0f;
     }
+    for (auto& viewport : regs.viewport_transform) {
+        viewport.swizzle.x.Assign(Regs::ViewportSwizzle::PositiveX);
+        viewport.swizzle.y.Assign(Regs::ViewportSwizzle::PositiveY);
+        viewport.swizzle.z.Assign(Regs::ViewportSwizzle::PositiveZ);
+        viewport.swizzle.w.Assign(Regs::ViewportSwizzle::PositiveW);
+    }
 
     // Doom and Bomberman seems to use the uninitialized registers and just enable blend
     // so initialize blend registers with sane values