From 9f10af508aa25dba944ec5189905cf4f522f6b26 Mon Sep 17 00:00:00 2001
From: smallmodel <15067410+smallmodel@users.noreply.github.com>
Date: Wed, 29 Oct 2025 18:59:17 +0100
Subject: [PATCH] Fix rare patch collision issue that doesn't occur in the
 original quake3 binaries

This is due to a small precision difference between FP87/SSE and SSE2/above.
---
 code/qcommon/cm_polylib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/code/qcommon/cm_polylib.c b/code/qcommon/cm_polylib.c
index 684182625f..fdb8e0aa79 100644
--- a/code/qcommon/cm_polylib.c
+++ b/code/qcommon/cm_polylib.c
@@ -440,9 +440,9 @@ void ChopWindingInPlace (winding_t **inout, vec3_t normal, vec_t dist, vec_t eps
 		dot = DotProduct (in->p[i], normal);
 		dot -= dist;
 		dists[i] = dot;
-		if (dot > epsilon)
+		if ((dot + 0.0005) > epsilon)
 			sides[i] = SIDE_FRONT;
-		else if (dot < -epsilon)
+		else if ((dot - 0.0005) < -epsilon)
 			sides[i] = SIDE_BACK;
 		else
 		{