diff --git a/src/xenia/gpu/d3d12/d3d12_command_processor.cc b/src/xenia/gpu/d3d12/d3d12_command_processor.cc
index 3338d5d9b..8db6f1626 100644
--- a/src/xenia/gpu/d3d12/d3d12_command_processor.cc
+++ b/src/xenia/gpu/d3d12/d3d12_command_processor.cc
@@ -21,6 +21,7 @@
 #include "xenia/gpu/d3d12/d3d12_command_processor.h"
 #include "xenia/gpu/d3d12/d3d12_graphics_system.h"
 #include "xenia/gpu/d3d12/d3d12_shader.h"
+#include "xenia/gpu/draw_util.h"
 #include "xenia/gpu/gpu_flags.h"
 #include "xenia/gpu/xenos.h"
 #include "xenia/ui/d3d12/d3d12_util.h"
@@ -2846,34 +2847,20 @@ void D3D12CommandProcessor::UpdateFixedFunctionState(bool primitive_two_faced) {
   }
 
   // Scissor.
-  auto pa_sc_window_scissor_tl = regs.Get<reg::PA_SC_WINDOW_SCISSOR_TL>();
-  auto pa_sc_window_scissor_br = regs.Get<reg::PA_SC_WINDOW_SCISSOR_BR>();
-  D3D12_RECT scissor;
-  scissor.left = pa_sc_window_scissor_tl.tl_x;
-  scissor.top = pa_sc_window_scissor_tl.tl_y;
-  scissor.right = pa_sc_window_scissor_br.br_x;
-  scissor.bottom = pa_sc_window_scissor_br.br_y;
-  if (!pa_sc_window_scissor_tl.window_offset_disable) {
-    scissor.left = std::max(
-        LONG(scissor.left + pa_sc_window_offset.window_x_offset), LONG(0));
-    scissor.top = std::max(
-        LONG(scissor.top + pa_sc_window_offset.window_y_offset), LONG(0));
-    scissor.right = std::max(
-        LONG(scissor.right + pa_sc_window_offset.window_x_offset), LONG(0));
-    scissor.bottom = std::max(
-        LONG(scissor.bottom + pa_sc_window_offset.window_y_offset), LONG(0));
-  }
-  scissor.left *= pixel_size_x;
-  scissor.top *= pixel_size_y;
-  scissor.right *= pixel_size_x;
-  scissor.bottom *= pixel_size_y;
-  ff_scissor_update_needed_ |= ff_scissor_.left != scissor.left;
-  ff_scissor_update_needed_ |= ff_scissor_.top != scissor.top;
-  ff_scissor_update_needed_ |= ff_scissor_.right != scissor.right;
-  ff_scissor_update_needed_ |= ff_scissor_.bottom != scissor.bottom;
+  draw_util::Scissor scissor;
+  draw_util::GetScissor(regs, scissor);
+  D3D12_RECT scissor_rect;
+  scissor_rect.left = LONG(scissor.left * pixel_size_x);
+  scissor_rect.top = LONG(scissor.top * pixel_size_y);
+  scissor_rect.right = LONG((scissor.left + scissor.width) * pixel_size_x);
+  scissor_rect.bottom = LONG((scissor.top + scissor.height) * pixel_size_y);
+  ff_scissor_update_needed_ |= ff_scissor_.left != scissor_rect.left;
+  ff_scissor_update_needed_ |= ff_scissor_.top != scissor_rect.top;
+  ff_scissor_update_needed_ |= ff_scissor_.right != scissor_rect.right;
+  ff_scissor_update_needed_ |= ff_scissor_.bottom != scissor_rect.bottom;
   if (ff_scissor_update_needed_) {
-    ff_scissor_ = scissor;
-    deferred_command_list_.RSSetScissorRect(scissor);
+    ff_scissor_ = scissor_rect;
+    deferred_command_list_.RSSetScissorRect(scissor_rect);
     ff_scissor_update_needed_ = false;
   }
 
diff --git a/src/xenia/gpu/draw_util.cc b/src/xenia/gpu/draw_util.cc
index 6aaa1b856..202d34965 100644
--- a/src/xenia/gpu/draw_util.cc
+++ b/src/xenia/gpu/draw_util.cc
@@ -111,6 +111,34 @@ int32_t FloatToD3D11Fixed16p8(float f32) {
   return result.s;
 }
 
+void GetScissor(const RegisterFile& regs, Scissor& scissor_out) {
+  // FIXME(Triang3l): Screen scissor isn't applied here, but it seems to be
+  // unused on Xbox 360 Direct3D 9.
+  auto pa_sc_window_scissor_tl = regs.Get<reg::PA_SC_WINDOW_SCISSOR_TL>();
+  auto pa_sc_window_scissor_br = regs.Get<reg::PA_SC_WINDOW_SCISSOR_BR>();
+  uint32_t tl_x = pa_sc_window_scissor_tl.tl_x;
+  uint32_t tl_y = pa_sc_window_scissor_tl.tl_y;
+  uint32_t br_x = pa_sc_window_scissor_br.br_x;
+  uint32_t br_y = pa_sc_window_scissor_br.br_y;
+  if (!pa_sc_window_scissor_tl.window_offset_disable) {
+    auto pa_sc_window_offset = regs.Get<reg::PA_SC_WINDOW_OFFSET>();
+    tl_x = uint32_t(std::max(
+        int32_t(tl_x) + pa_sc_window_offset.window_x_offset, int32_t(0)));
+    tl_y = uint32_t(std::max(
+        int32_t(tl_y) + pa_sc_window_offset.window_y_offset, int32_t(0)));
+    br_x = uint32_t(std::max(
+        int32_t(br_x) + pa_sc_window_offset.window_x_offset, int32_t(0)));
+    br_y = uint32_t(std::max(
+        int32_t(br_y) + pa_sc_window_offset.window_y_offset, int32_t(0)));
+  }
+  br_x = std::max(br_x, tl_x);
+  br_y = std::max(br_y, tl_y);
+  scissor_out.left = tl_x;
+  scissor_out.top = tl_y;
+  scissor_out.width = br_x - tl_x;
+  scissor_out.height = br_y - tl_y;
+}
+
 xenos::CopySampleSelect SanitizeCopySampleSelect(
     xenos::CopySampleSelect copy_sample_select, xenos::MsaaSamples msaa_samples,
     bool is_depth) {
diff --git a/src/xenia/gpu/draw_util.h b/src/xenia/gpu/draw_util.h
index edb880ab0..7ef3186a0 100644
--- a/src/xenia/gpu/draw_util.h
+++ b/src/xenia/gpu/draw_util.h
@@ -33,6 +33,14 @@ namespace draw_util {
 // for use with the top-left rasterization rule later.
 int32_t FloatToD3D11Fixed16p8(float f32);
 
+struct Scissor {
+  uint32_t left;
+  uint32_t top;
+  uint32_t width;
+  uint32_t height;
+};
+void GetScissor(const RegisterFile& regs, Scissor& scissor_out);
+
 // To avoid passing values that the shader won't understand (even though
 // Direct3D 9 shouldn't pass them anyway).
 xenos::CopySampleSelect SanitizeCopySampleSelect(