From 2f8d0d5f7e2cc8171586769f8b34c9068d599ffd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Tue, 16 Jun 2026 21:26:46 -0700
Subject: [PATCH] Validate depth attachments don't use
 BGFX_RESOLVE_AUTO_GEN_MIPS. Closes #2862. (#3764)

---
 src/bgfx.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/bgfx.cpp b/src/bgfx.cpp
index 98727c0c0..5185376a5 100644
--- a/src/bgfx.cpp
+++ b/src/bgfx.cpp
@@ -4995,6 +4995,16 @@ namespace bgfx
 					, ii
 					, tr.m_flags
 					);
+
+				BGFX_ERROR_CHECK(
+					0 == (at.resolve & BGFX_RESOLVE_AUTO_GEN_MIPS)
+					, _err
+					, BGFX_ERROR_FRAME_BUFFER_VALIDATION
+					, "Frame buffer depth attachment cannot use `BGFX_RESOLVE_AUTO_GEN_MIPS`. Depth textures do not support MSAA resolve."
+					, "Attachment %d, resolve flags 0x%02x."
+					, ii
+					, at.resolve
+					);
 			}
 			else
 			{