From 64182b76dcd843ab6e0f37c3f49cc68ebe39fa05 Mon Sep 17 00:00:00 2001
From: Swung0x48 <swung0x48@outlook.com>
Date: Sun, 20 Sep 2026 20:58:18 -0400
Subject: [PATCH] [MG_Backend] (Magma): the indirect client-array staging block
 is monolith-only

---
 MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp b/MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp
index 80295d96..da028bda 100644
--- a/MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp
+++ b/MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp
@@ -13092,7 +13092,9 @@ void main() {
         DrawCmdParam vertexRange{};
         vertexRange.vertexCount = 0;
         vertexRange.instanceCount = 1;
-        {
+        // MONOLITH ONLY: with a transport the frontend VAO is not this side's to read at all
+        // (the client owns those bytes and stages them itself), and this runs on the apply thread.
+        if (MG_Config::Transport == MG_Config::TransportMode::Monolith) {
             const auto& currentVAO = MGB_CTX->GetBoundVertexArray();
             Bool clientArray = false;
             if (currentVAO) {