From 3ac175660ce2bfb438d8b38267fd8fe3ca76812e Mon Sep 17 00:00:00 2001
From: Jaime Passos <lazymyuutsu@gmail.com>
Date: Sat, 17 Oct 2020 22:40:49 -0300
Subject: [PATCH] Don't render sprites with negative xscale or yscale in OpenGL

---
 src/hardware/hw_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 89610a8d7..bd4bcf66d 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -4849,6 +4849,9 @@ static void HWR_ProjectSprite(mobj_t *thing)
 	if (!thing)
 		return;
 
+	if (thing->spritexscale < 1 || thing->spriteyscale < 1)
+		return;
+
 	dispoffset = thing->info->dispoffset;
 
 	this_scale = FIXED_TO_FLOAT(thing->scale);