JS Error on OS
12 January 2015 20:24
I am getting the JS error on the follow spec:
Safari: 5.1.10
OS: 10.6.8
WebGL enabled
Js Error: TypeError: 'undefined' is not a function (evaluating 'a.getShaderPrecisionFormat(a.FRAGMENT_SHADER, a.HIGH_FLOAT)')
It just stopped on the preload screen (Blend4Web's API Simple Preloader).
Safari: 5.1.10
OS: 10.6.8
WebGL enabled
Js Error: TypeError: 'undefined' is not a function (evaluating 'a.getShaderPrecisionFormat(a.FRAGMENT_SHADER, a.HIGH_FLOAT)')
It just stopped on the preload screen (Blend4Web's API Simple Preloader).
12 January 2015 20:38
Hi Ryan,
That is rather old version of Safari, and it is quite possible that its WebGL implementation does not support some functionality from the Khronos spec, such as getShaderPrecisionFormat() function. Officially, WebGL is supported since OS X Yosemite, Safari version 8.0. Do you have opportunity to upgrade your browser and/or Snow Leopard? If not you might download Chrome of Firefox.
That is rather old version of Safari, and it is quite possible that its WebGL implementation does not support some functionality from the Khronos spec, such as getShaderPrecisionFormat() function. Officially, WebGL is supported since OS X Yosemite, Safari version 8.0. Do you have opportunity to upgrade your browser and/or Snow Leopard? If not you might download Chrome of Firefox.
12 January 2015 20:55
We'll be setting up an error message prior to initializing Blend4Web. We'll check the browser version first.
12 January 2015 20:56
Here's a list of all the browsers and their versions that support WebGL.
http://en.wikipedia.org/wiki/WebGL
http://en.wikipedia.org/wiki/WebGL
12 January 2015 21:04
12 January 2015 22:31
How would I attach the user-defined image if i'm using the data.load method in the API. I'm setting up a file similar to the following tutorial https://www.blend4web.com/en/article/23.
12 January 2015 23:12
The init_cb() callback which is fired after initialization has the second boolean argument (named success). If this value is false, that is no WebGL, an app can show up some hidden HTML content (image, text, video whatever).
For example:
Here assumed that the container element exists in your page, but is initially hidden, which can be done with HTML and CSS as follows:
Edit: added a bit more code to clarify things..
For example:
if (!success) {
var cont = document.getElementById("my_ID"); // get <div> container for fallback content
cont.style.display = "";
}
Here assumed that the container element exists in your page, but is initially hidden, which can be done with HTML and CSS as follows:
<div id="my_ID">Fallback content here..</div>
<style>
#my_ID {
display: none;
}
</style>
Edit: added a bit more code to clarify things..