From 4cbcae5b649378d9e839e58e42a121d3a4e69d99 Mon Sep 17 00:00:00 2001
From: "Herman S." <429230+has207@users.noreply.github.com>
Date: Tue, 9 Dec 2025 13:40:09 +0900
Subject: [PATCH] [Vulkan] Properly scale rectangle coordinates

---
 src/xenia/gpu/vulkan/vulkan_render_target_cache.cc | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/xenia/gpu/vulkan/vulkan_render_target_cache.cc b/src/xenia/gpu/vulkan/vulkan_render_target_cache.cc
index 3f9984405..adc33082c 100644
--- a/src/xenia/gpu/vulkan/vulkan_render_target_cache.cc
+++ b/src/xenia/gpu/vulkan/vulkan_render_target_cache.cc
@@ -5129,8 +5129,12 @@ void VulkanRenderTargetCache::PerformTransfersAndResolveClears(
       transfer_viewport.minDepth = 0.0f;
       transfer_viewport.maxDepth = 1.0f;
       command_processor_.SetViewport(transfer_viewport);
-      float pixels_to_ndc_x = 2.0f / transfer_viewport.width;
-      float pixels_to_ndc_y = 2.0f / transfer_viewport.height;
+      // GetRectangles returns coordinates in guest pixels, so scale
+      // pixels_to_ndc to convert guest pixels to NDC correctly.
+      float pixels_to_ndc_x =
+          2.0f / transfer_viewport.width * draw_resolution_scale_x();
+      float pixels_to_ndc_y =
+          2.0f / transfer_viewport.height * draw_resolution_scale_y();
       VkRect2D transfer_scissor;
       transfer_scissor.offset.x = 0;
       transfer_scissor.offset.y = 0;