glsl-function-refract.html (1985B)
1 <!-- 2 Copyright (c) 2019 The Khronos Group Inc. 3 Use of this source code is governed by an MIT-style license that can be 4 found in the LICENSE.txt file. 5 --> 6 7 <!DOCTYPE html> 8 <html> 9 <head> 10 <meta charset="utf-8"> 11 <title>GLSL refract function test</title> 12 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> 13 <link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/> 14 <script src="../../../js/js-test-pre.js"></script> 15 <script src="../../../js/webgl-test-utils.js"> </script> 16 <script src="../../../js/glsl-generator.js"> </script> 17 </head> 18 <body> 19 <div id="description"></div> 20 <div id="console"></div> 21 <script> 22 "use strict"; 23 GLSLGenerator.runFeatureTest({ 24 feature: "refract", 25 args: "$(type) I, $(type) N, float eta", 26 baseArgs: "value$(field)", 27 testFunc: "$(func)($(type),$(type),float)", 28 simpleEmu: [ 29 "$(type) $(func)_emu($(args)) {", 30 " float dotNI = dot(N, I);", 31 " float k = 1.0 - eta * eta * (1.0 - dotNI * dotNI);", 32 " if (k < 0.0) {", 33 " return $(type)(0.0);", 34 " }", 35 " return eta * I - (eta * dotNI * sqrt(k)) * N;", 36 "}"].join("\n"), 37 gridRes: 8, 38 tests: [ 39 ["$(output) = vec4(", 40 " $(func)(", 41 " $(input).x * 2.0 - 1.0,", 42 " $(input).y * 2.0 - 1.0,", 43 " $(input).w),", 44 " 0,", 45 " 0,", 46 " 1);"].join("\n"), 47 ["$(output) = vec4(", 48 " $(func)(", 49 " $(input).xy * 2.0 - 1.0,", 50 " $(input).yz * 2.0 - 1.0,", 51 " $(input).w),", 52 " 0, 1);"].join("\n"), 53 ["$(output) = vec4(", 54 " $(func)(", 55 " $(input).xyz * 2.0 - 1.0,", 56 " $(input).yzw * 2.0 - 1.0,", 57 " $(input).w),", 58 " 1);"].join("\n"), 59 ["$(output) = ", 60 " $(func)(", 61 " $(input).xyzw * 2.0 - 1.0,", 62 " $(input).yzwx * 2.0 - 1.0,", 63 " $(input).w);" 64 ].join("\n") 65 ] 66 }); 67 var successfullyParsed = true; 68 </script> 69 </body> 70 </html>