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<!--
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.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>GLSL refract function test</title>
<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
<script src="../../../js/js-test-pre.js"></script>
<script src="../../../js/webgl-test-utils.js"> </script>
<script src="../../../js/glsl-generator.js"> </script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
GLSLGenerator.runFeatureTest({
feature: "refract",
args: "$(type) I, $(type) N, float eta",
baseArgs: "value$(field)",
testFunc: "$(func)($(type),$(type),float)",
simpleEmu: [
"$(type) $(func)_emu($(args)) {",
" float dotNI = dot(N, I);",
" float k = 1.0 - eta * eta * (1.0 - dotNI * dotNI);",
" if (k < 0.0) {",
" return $(type)(0.0);",
" }",
" return eta * I - (eta * dotNI * sqrt(k)) * N;",
"}"].join("\n"),
gridRes: 8,
tests: [
["$(output) = vec4(",
" $(func)(",
" $(input).x * 2.0 - 1.0,",
" $(input).y * 2.0 - 1.0,",
" $(input).w),",
" 0,",
" 0,",
" 1);"].join("\n"),
["$(output) = vec4(",
" $(func)(",
" $(input).xy * 2.0 - 1.0,",
" $(input).yz * 2.0 - 1.0,",
" $(input).w),",
" 0, 1);"].join("\n"),
["$(output) = vec4(",
" $(func)(",
" $(input).xyz * 2.0 - 1.0,",
" $(input).yzw * 2.0 - 1.0,",
" $(input).w),",
" 1);"].join("\n"),
["$(output) = ",
" $(func)(",
" $(input).xyzw * 2.0 - 1.0,",
" $(input).yzwx * 2.0 - 1.0,",
" $(input).w);"
].join("\n")
]
});
var successfullyParsed = true;
</script>
</body>
</html>
|
