glsl-function-sign.html (1560B)
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 sign 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: "sign", 25 testFunc: "$(func)($(arg0))", 26 emuFunc: ["float $(func)_base(float value) {", 27 " if (value == 0.0) return 0.0;", 28 " return value > 0.0 ? 1.0 : -1.0;", 29 "}"].join("\n"), 30 gridRes: 4, 31 tests: [ 32 ["$(output) = vec4(", 33 " $(func)($(input).x * 2.0 - 1.0) * 0.5 + 0.5,", 34 " 0.5,", 35 " 0,", 36 " 1);"].join("\n"), 37 ["$(output) = vec4(", 38 " $(func)($(input).xy * 2.0 - vec2(1, 1)) * 0.5 + vec2(0.5, 0.5),", 39 " 0, 1);"].join("\n"), 40 ["$(output) = vec4(", 41 " $(func)($(input).xyz * 2.0 - vec3(1, 1, 1)) * 0.5 + ", 42 " vec3(0.5, 0.5, 0.5),", 43 " 1);"].join("\n"), 44 ["$(output) = ", 45 " $(func)($(input) * 2.0 - vec4(1, 1, 1, 1)) * 0.5 + ", 46 " vec4(0.5, 0.5, 0.5, 0.5);"].join("\n") 47 ] 48 }); 49 var successfullyParsed = true; 50 </script> 51 </body> 52 </html>