From 173be4d0fa674a33d7c1c8b0de797da89135e006 Mon Sep 17 00:00:00 2001
From: Vincent Bousquet <vincent.bousqt@gmail.com>
Date: Thu, 9 Apr 2026 23:21:17 +0200
Subject: [PATCH] DX12: fix blitting inside a texture 2D array (#3657)

---
 src/renderer_d3d12.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/renderer_d3d12.cpp b/src/renderer_d3d12.cpp
index b0e4d6704..2b7907773 100644
--- a/src/renderer_d3d12.cpp
+++ b/src/renderer_d3d12.cpp
@@ -6707,11 +6707,11 @@ namespace bgfx { namespace d3d12
 
 				const uint32_t srcZ = TextureD3D12::TextureCube == src.m_type
 					? blit.m_srcZ
-					: 0
+					: bx::min(blit.m_srcZ, (uint16_t)src.m_numLayers - 1)
 					;
 				const uint32_t dstZ = TextureD3D12::TextureCube == dst.m_type
 					? blit.m_dstZ
-					: 0
+					: bx::min(blit.m_dstZ, (uint16_t)dst.m_numLayers - 1)
 					;
 
 				D3D12_TEXTURE_COPY_LOCATION dstLocation;