From 82eb80709015b0478af50559d0773b5c4e6ea95a Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sat, 30 May 2020 22:27:59 +0200
Subject: [PATCH] - activate the texture layers if needed.

---
 source/glbackend/gl_texture.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/glbackend/gl_texture.cpp b/source/glbackend/gl_texture.cpp
index 90706843d..253526f26 100644
--- a/source/glbackend/gl_texture.cpp
+++ b/source/glbackend/gl_texture.cpp
@@ -93,6 +93,9 @@ bool GLInstance::SetTexture(int picnum, FGameTexture* tex, int paletteid, int me
 	if (TextureType == TT_INDEXED) renderState.Flags |= RF_UsePalette;
 	else renderState.Flags &= ~RF_UsePalette;
 	GLInterface.SetAlphaThreshold(tex->alphaThreshold);
+	UseBrightmaps(tex->GetBrightmap() != nullptr);
+	UseGlowMapping(tex->GetGlowmap() != nullptr);
+	UseDetailMapping(tex->GetDetailmap() != nullptr);
 	return true;
 }