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Thread: Transform Feedback Alternative in gl es 2?

  1. #1
    Junior Member Newbie
    Join Date
    Dec 2011
    Posts
    5

    Transform Feedback Alternative in gl es 2?

    Hello, if tf isn't available in GL ES 2.0, how can I achieve reading back transformed vertices? How would I connect a second Vertex Shader to the first One?

  2. #2
    Senior Member OpenGL Lord
    Join Date
    Mar 2015
    Posts
    6,674

    Re: Transform Feedback Alternative in gl es 2?

    You don't.

    OpenGL ES is less functional than desktop GL.

    The best you can do is try rendering to a texture, then using glReadPixels to copy it to a buffer object (assuming you have PBO support), and then use that buffer to draw from. But that's the best you can do.

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