My god, the following algorithm is very very brilliant from your
provider url code.
function isPowerOfTwo(x) {
return (x & (x - 1)) == 0;
}
2011/4/2 Dan Roberts <[email protected]>:
> http://www.khronos.org/webgl/wiki/WebGL_and_OpenGL_Differences
>
>> While OpenGL 2.0 and later for the desktop offer full support for
>> non-power-of-two (NPOT) textures, OpenGL ES 2.0 and WebGL have only limited
>> NPOT support.
>
> Chances are you're using OpenGL ES 1.1 anyways, unless the highest profile
> is automagically selected for you when creating a context (I have no idea).
> But if OpenGL ES 2.0 has only limited support, it seems likely NPOT is
> almost entirely missing in 1.1 Someone more knowledgeable can correct me,
> but this is likely at least close. Just use power of two sized textures, you
> can pre-scale them is need be.
>
> Cheers,
> Dan
>
> On Apr 1, 2011 6:24 PM, "a a" <[email protected]> wrote:
>> Why should bitmap with 2, 4, 8, 16, 32, 64, 128.........otherwise, it
>> will be white board?
>>
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