From 7f2e17969b15595f503abd89abe549a8e4ff557c Mon Sep 17 00:00:00 2001
From: Hans-Kristian Arntzen <hans-kristian.arntzen@arm.com>
Date: Sun, 5 Mar 2017 12:44:29 +0100
Subject: [PATCH] Add built-in cull distance.

---
 .../desktop-only/vert/clip-cull-distance.desktop.vert | 11 +++++++++++
 .../desktop-only/vert/clip-cull-distance.desktop.vert | 10 ++++++++++
 spirv_glsl.cpp                                        |  2 ++
 3 files changed, 23 insertions(+)
 create mode 100644 reference/shaders/desktop-only/vert/clip-cull-distance.desktop.vert
 create mode 100644 shaders/desktop-only/vert/clip-cull-distance.desktop.vert

diff --git a/reference/shaders/desktop-only/vert/clip-cull-distance.desktop.vert b/reference/shaders/desktop-only/vert/clip-cull-distance.desktop.vert
new file mode 100644
index 00000000..566809db
--- /dev/null
+++ b/reference/shaders/desktop-only/vert/clip-cull-distance.desktop.vert
@@ -0,0 +1,11 @@
+#version 450
+
+void main()
+{
+    gl_Position = vec4(10.0);
+    gl_ClipDistance[0] = 1.0;
+    gl_ClipDistance[1] = 4.0;
+    gl_CullDistance[0] = 4.0;
+    gl_CullDistance[1] = 9.0;
+}
+
diff --git a/shaders/desktop-only/vert/clip-cull-distance.desktop.vert b/shaders/desktop-only/vert/clip-cull-distance.desktop.vert
new file mode 100644
index 00000000..9e4a0b7a
--- /dev/null
+++ b/shaders/desktop-only/vert/clip-cull-distance.desktop.vert
@@ -0,0 +1,10 @@
+#version 450
+
+void main()
+{
+   gl_Position = vec4(10.0);
+   gl_ClipDistance[0] = 1.0;
+   gl_ClipDistance[1] = 4.0;
+   gl_CullDistance[0] = 4.0;
+   gl_CullDistance[1] = 9.0;
+}
diff --git a/spirv_glsl.cpp b/spirv_glsl.cpp
index 6bb17a4c..c841482e 100644
--- a/spirv_glsl.cpp
+++ b/spirv_glsl.cpp
@@ -3203,6 +3203,8 @@ string CompilerGLSL::builtin_to_glsl(BuiltIn builtin)
 		return "gl_PointSize";
 	case BuiltInClipDistance:
 		return "gl_ClipDistance";
+	case BuiltInCullDistance:
+		return "gl_CullDistance";
 	case BuiltInVertexId:
 		if (options.vulkan_semantics)
 			SPIRV_CROSS_THROW(