VideoBackends: Set the maximum range when the depth range is oversized.

The depth values generated by the vertex shader need to be clamped correctly.

1 files changed, 5 insertions, 3 deletions

diff --git a/Source/Core/VideoBackends/D3D12/Render.cpp b/Source/Core/VideoBackends/D3D12/Render.cpp
index 812a0adf11..d72ab7497a 100644
--- a/Source/Core/VideoBackends/D3D12/Render.cpp
+++ b/Source/Core/VideoBackends/D3D12/Render.cpp
@@ -481,10 +481,12 @@ void Renderer::SetViewport()
     height = -height;
   }
 
-  // If an inverted depth range is used, which D3D doesn't support,
-  // we need to calculate the depth range in the vertex shader.
-  if (xfmem.viewport.zRange < 0.0f)
+  // If an inverted or oversized depth range is used, we need to calculate the depth range in the
+  // vertex shader.
+  if (xfmem.viewport.zRange < 0.0f || fabs(xfmem.viewport.zRange) > 16777215.0f ||
+      fabs(xfmem.viewport.farZ) > 16777215.0f)
   {
+    // We need to ensure depth values are clamped the maximum value supported by the console GPU.
     min_depth = 0.0f;
     max_depth = GX_MAX_DEPTH;
   }