deac/OpenJsCad
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Added proper error message if WebGL not supported

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This commit is contained in:
Joost Nieuwenhuijse 2012-01-21 15:24:03 +01:00
parent a5ee34852b
commit a66db774a2
1 changed files with 6 additions and 7 deletions
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13
openjscad.js
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@ -4,13 +4,9 @@ OpenJsCad = function() {
// A viewer is a WebGL canvas that lets the user view a mesh. The user can // A viewer is a WebGL canvas that lets the user view a mesh. The user can
// tumble it around by dragging the mouse. // tumble it around by dragging the mouse.
OpenJsCad.Viewer = function(containerelement, width, height, initialdepth) { OpenJsCad.Viewer = function(containerelement, width, height, initialdepth) {
var gl = GL.create(); try
if(!gl)
{ {
containerelement.innerHTML = "WebGL is required for the 3D viewer, but your browser doesn't seem to support this."; var gl = GL.create();
}
else
{
this.gl = gl; this.gl = gl;
this.angleX = 0; this.angleX = 0;
this.angleY = 0; this.angleY = 0;
@ -85,7 +81,10 @@ OpenJsCad.Viewer = function(containerelement, width, height, initialdepth) {
_this.onDraw(); _this.onDraw();
}; };
this.clear(); this.clear();
} }
catch (e) {
containerelement.innerHTML = "<b><br><br>Error: "+e.toString()+"</b><br><br>OpenJsCad currently requires Google Chrome with WebGL enabled";
}
}; };
OpenJsCad.Viewer.prototype = { OpenJsCad.Viewer.prototype = {