From 365ac0a5fac08938d9692cf20eee818692a4e63b Mon Sep 17 00:00:00 2001
From: Marco Hladik <marco@icculus.org>
Date: Thu, 24 Sep 2020 17:43:35 +0200
Subject: [PATCH] Decals: Avoid attempting to cache and display decals with no
 yet-defined texture.

---
 src/gs-entbase/shared/decals.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/gs-entbase/shared/decals.cpp b/src/gs-entbase/shared/decals.cpp
index ff0a0570..4063fe1d 100644
--- a/src/gs-entbase/shared/decals.cpp
+++ b/src/gs-entbase/shared/decals.cpp
@@ -82,6 +82,10 @@ decal::predraw(void)
 		return PREDRAW_NEXT;
 	}
 
+	/* skip empty decals */
+	if (!dcl.m_strShader)
+		return;
+
 	/* don't draw us, unnecessary */
 	/*if (checkpvs(getproperty(VF_ORIGIN), this) == FALSE) {
 		return PREDRAW_NEXT;
@@ -96,6 +100,11 @@ void
 decal::BuildShader(void)
 {
 	string shader_buff;
+
+	/* skip empty decals */
+	if (!m_strTexture)
+		return;
+
 	m_strShader = sprintf("decal_%s", m_strTexture);
 	shader_buff = sprintf(g_decal_shader, m_strTexture);
 	shaderforname(m_strShader, shader_buff);