MAINT-616 Faster issuance of occlusion queries.

1 files changed, 38 insertions, 0 deletions

diff --git a/indra/newview/app_settings/shaders/class1/interface/occlusionCubeV.glsl b/indra/newview/app_settings/shaders/class1/interface/occlusionCubeV.glsl
new file mode 100644
index 0000000000..5c479d27a9
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/interface/occlusionCubeV.glsl
@@ -0,0 +1,38 @@
+/** 
+ * @file occlusionCubeV.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, 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
+ * $/LicenseInfo$
+ */
+
+uniform mat4 modelview_projection_matrix;
+
+ATTRIBUTE vec3 position;
+
+uniform vec3 box_center;
+uniform vec3 box_size;
+
+void main()
+{
+	vec3 p = position*box_size+box_center;
+	gl_Position = modelview_projection_matrix * vec4(p.xyz, 1.0);
+}
+