From 67a2c69c78d5d5b1e6d46714b4dc12be1735bcd1 Mon Sep 17 00:00:00 2001
From: BlueCube3310 <53150244+BlueCube3310@users.noreply.github.com>
Date: Tue, 20 May 2025 13:21:59 +0200
Subject: [PATCH] Mobile: Disable subpass post-processing when using FXAA

---
 .../renderer_rd/forward_mobile/render_forward_mobile.cpp     | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
index f809077416..f29c34b97f 100644
--- a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
+++ b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.cpp
@@ -883,6 +883,11 @@ void RenderForwardMobile::_render_scene(RenderDataRD *p_render_data, const Color
 			using_subpass_post_process = false;
 		}
 
+		if (rb->get_screen_space_aa() == RS::VIEWPORT_SCREEN_SPACE_AA_FXAA) {
+			// Can't do blit subpass because we're using FXAA.
+			using_subpass_post_process = false;
+		}
+
 		if (scene_state.used_screen_texture || scene_state.used_depth_texture) {
 			// can't use our last two subpasses because we're reading from screen texture or depth texture
 			merge_transparent_pass = false;