From 16d813859ff6522665a56dca93c3d902be91014e Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <sezeroz@gmail.com>
Date: Thu, 2 Jun 2022 14:33:10 +0300
Subject: [PATCH] R_DrawSequentialPoly: don't use function calls from CLAMP()
 macro.

---
 Quake/r_brush.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Quake/r_brush.c b/Quake/r_brush.c
index 70cb9e9b..75d5e28a 100644
--- a/Quake/r_brush.c
+++ b/Quake/r_brush.c
@@ -234,8 +234,11 @@ void R_DrawSequentialPoly (msurface_t *s)
 	if (s->flags & SURF_DRAWTURB)
 	{
 		if (currententity->alpha == ENTALPHA_DEFAULT)
-			entalpha = CLAMP(0.0, GL_WaterAlphaForSurface(s), 1.0);
-
+		{
+			entalpha = GL_WaterAlphaForSurface(s);
+			if (entalpha > 1.0f) entalpha = 1.0f;
+			else if (entalpha < 0.0f) entalpha = 0.0f;
+		}
 		if (entalpha < 1)
 		{
 			glDepthMask(GL_FALSE);