texture-cube-as-fbo-attachment.html (2166B)
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>WebGL texture cube as FBO color attachment</title> 12 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> 13 <script src="../../../js/js-test-pre.js"></script> 14 <script src="../../../js/webgl-test-utils.js"></script> 15 </head> 16 <body> 17 <canvas id="example" width="2" height="2" style="width: 40px; height: 40px;"></canvas> 18 <div id="description"></div> 19 <div id="console"></div> 20 <script> 21 "use strict"; 22 var gl; 23 24 function run() 25 { 26 description( 27 "Tests using a cube map face as the color attachment of a framebuffer object. " + 28 "This test covers an ANGLE validation bug. See https://code.google.com/p/angleproject/issues/detail?id=849 ."); 29 30 var wtu = WebGLTestUtils; 31 gl = wtu.create3DContext("example"); 32 var textureCube = gl.createTexture(); 33 gl.bindTexture(gl.TEXTURE_CUBE_MAP, textureCube); 34 var faces = [ 35 gl.TEXTURE_CUBE_MAP_POSITIVE_X, 36 gl.TEXTURE_CUBE_MAP_NEGATIVE_X, 37 gl.TEXTURE_CUBE_MAP_POSITIVE_Y, 38 gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, 39 gl.TEXTURE_CUBE_MAP_POSITIVE_Z, 40 gl.TEXTURE_CUBE_MAP_NEGATIVE_Z 41 ]; 42 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.NEAREST); 43 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.NEAREST); 44 for (var ii = 0; ii < faces.length; ++ii) { 45 gl.texImage2D(faces[ii], 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); 46 } 47 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup"); 48 49 var fbo = gl.createFramebuffer(); 50 gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); 51 52 for (var ii = 0; ii < faces.length; ++ii) { 53 gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, faces[ii], textureCube, 0); 54 shouldBe('gl.checkFramebufferStatus(gl.FRAMEBUFFER)', 'gl.FRAMEBUFFER_COMPLETE'); 55 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors for face " + wtu.glEnumToString(gl, faces[ii])); 56 } 57 } 58 59 run(); 60 var successfullyParsed = true; 61 </script> 62 <script src="../../../js/js-test-post.js"></script> 63 64 </body> 65 </html>