1 files changed, 29 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/faceforward/faceforward_vec2_frag_nvaryiconst.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/faceforward/faceforward_vec2_frag_nvaryiconst.frag
new file mode 100644
index 0000000000..d877115396
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/faceforward/faceforward_vec2_frag_nvaryiconst.frag
@@ -0,0 +1,29 @@
+
+/*
+Copyright (c) 2019 The Khronos Group Inc.
+Use of this source code is governed by an MIT-style license that can be
+found in the LICENSE.txt file.
+*/
+
+
+#ifdef GL_ES
+precision mediump float;
+#endif
+varying vec4 color;
+
+void main (void)
+{
+	const float M_PI = 3.14159265358979323846;
+
+	// Both are unit vectors
+	vec2 v1;
+	vec2 v2 = normalize(vec2(1.0, 1.0));
+
+
+	float theta = color.g * 2.0 * M_PI;
+	float phi = color.b * 2.0 * M_PI;
+	v1.x = cos(theta) * sin(phi);
+	v1.y = sin(theta) * sin(phi);
+
+	gl_FragColor = vec4((faceforward(v1, v2, v1) + 1.0) / 2.0, 0.0, 1.0);
+}