From b2462355a39a8473065c279c66daba307f1fa9bf Mon Sep 17 00:00:00 2001
From: RunitaiLinden <davep@lindenlab.com>
Date: Thu, 1 Feb 2024 13:19:20 -0600
Subject: #677 WIP -- add mirror clipping to more shaders

---
 .../shaders/class1/deferred/globalF.glsl           | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 indra/newview/app_settings/shaders/class1/deferred/globalF.glsl

(limited to 'indra/newview/app_settings/shaders/class1/deferred/globalF.glsl')

diff --git a/indra/newview/app_settings/shaders/class1/deferred/globalF.glsl b/indra/newview/app_settings/shaders/class1/deferred/globalF.glsl
new file mode 100644
index 0000000000..7e3e7d9271
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/globalF.glsl
@@ -0,0 +1,45 @@
+/** 
+ * @file class1/deferred/globalF.glsl
+ *
+ * $LicenseInfo:firstyear=2024&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2024, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+
+ // Global helper functions included in every fragment shader
+ // DO NOT declare sampler uniforms here as OS X doesn't compile
+ // them out
+
+uniform float mirror_flag;
+uniform vec4 clipPlane;
+uniform float clipSign;
+
+void mirrorClip(vec3 pos)
+{
+    if (mirror_flag > 0)
+    {
+        if ((dot(pos.xyz, clipPlane.xyz) + clipPlane.w) < 0.0)
+        {
+                discard;
+        }
+    }
+}
+
-- 
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