From 65dc286e9b3a2771bb0d4b424ffadfe7d5d00868 Mon Sep 17 00:00:00 2001
From: TellowKrinkle <tellowkrinkle@gmail.com>
Date: Mon, 31 Aug 2026 03:11:54 -0500
Subject: [PATCH] GS:VK: Use swizzle value compatible with MoltenVK on older
 GPUs

---
 pcsx2/GS/Renderers/Vulkan/GSTextureVK.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pcsx2/GS/Renderers/Vulkan/GSTextureVK.cpp b/pcsx2/GS/Renderers/Vulkan/GSTextureVK.cpp
index f664db0a3b..0ce82eb092 100644
--- a/pcsx2/GS/Renderers/Vulkan/GSTextureVK.cpp
+++ b/pcsx2/GS/Renderers/Vulkan/GSTextureVK.cpp
@@ -104,9 +104,9 @@ std::unique_ptr<GSTextureVK> GSTextureVK::Create(Usage usage, Format format, int
 
 	if (format == Format::UNorm8)
 	{
-		// for r8 textures, swizzle it across all 4 components. the shaders depend on it being in alpha.. why?
+		// UNorm8 wants value in alpha, not red.
 		static constexpr const VkComponentMapping r8_swizzle = {
-			VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_R };
+			VK_COMPONENT_SWIZZLE_ZERO, VK_COMPONENT_SWIZZLE_ZERO, VK_COMPONENT_SWIZZLE_ZERO, VK_COMPONENT_SWIZZLE_R };
 		vci.components = r8_swizzle;
 	}