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<meta charset="utf-8">
<title>Struct constructor highp bug.</title>
<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
<script src="../../../js/js-test-pre.js"></script>
<script src="../../../js/webgl-test-utils.js"></script>
<script src="../../../js/glsl-conformance-test.js"></script>
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<div id="description"></div>
<div id="console"></div>
<script id="fshader" type="x-shader/x-fragment">
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif

struct Test {
  vec3 color;
};

void main() {
  vec3 color = vec3( 0.0, 1.0, 0.0 );
  Test test = Test( color );
  gl_FragColor = vec4( test.color, 1.0 );
}
</script>

<script type="application/javascript">
"use strict";
description("Struct constructors should evaluate properly.");
debug("Regression test for Three.js bug worked around in <a href='https://github.com/mrdoob/three.js/pull/7556'>https://github.com/mrdoob/three.js/pull/7556</a> that reproduced on Nexus 4 and 5 (Adreno 320 and 330).");
debug("When high precision is used in the fragment shader on these devices, bugs occur in evaluation of structs' constructors. Thanks to Mr. doob for the reduced test case.");

GLSLConformanceTester.runRenderTests([
{
  fShaderId: 'fshader',
  fShaderSuccess: true,
  linkSuccess: true,
  passMsg: "Struct contstructor evaluation"
}
]);

</script>

</body>
</html>
