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Comment by DiThi | Hacker News Reader

In kubuntu 14.04, Intel HD4400, Firefox:

    Error: WebGL: drawArrays: incomplete framebuffer

Chrome:

    GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawArrays: framebuffer incomplete (clear)
    GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawArrays: framebuffer incomplete (check) (repeated many times)

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Sorry about that! I had someone else report that it fails across all browsers with the HD4400.

It works well on OSX 10.10 with an HD4000 in Firefox, Chrome and even in Safari. The "framebuffer not complete" warning looks like you're using an extension which isn't supported everywhere, probably OES_texture_float or WEBGL_depth_texture?

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