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diff --git a/src/renderergl2/tr_postprocess.h b/src/renderergl2/tr_postprocess.h
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+++ b/src/renderergl2/tr_postprocess.h
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+/*
+===========================================================================
+Copyright (C) 2011 Andrei Drexler, Richard Allen, James Canete
+Copyright (C) 2015-2019 GrangerHub
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, see <https://www.gnu.org/licenses/>
+
+===========================================================================
+*/
+
+#ifndef TR_POSTPROCESS_H
+#define TR_POSTPROCESS_H
+
+#include "tr_fbo.h"
+
+void RB_ToneMap(FBO_t *hdrFbo, ivec4_t hdrBox, FBO_t *ldrFbo, ivec4_t ldrBox, int autoExposure);
+void RB_BokehBlur(FBO_t *src, ivec4_t srcBox, FBO_t *dst, ivec4_t dstBox, float blur);
+void RB_SunRays(FBO_t *srcFbo, ivec4_t srcBox, FBO_t *dstFbo, ivec4_t dstBox);
+void RB_GaussianBlur(float blur);
+
+#endif