<div dir="ltr">That did the trick. Thank you :)<br></div><div class="gmail_extra"><br><div class="gmail_quote">2016-07-20 11:56 GMT+01:00 Sebastian Messerschmidt <span dir="ltr"><<a href="mailto:sebastian.messerschmidt@gmx.de" target="_blank">sebastian.messerschmidt@gmx.de</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <div>Hi Bruno, <br>
    </div><span class="">
    <blockquote type="cite">
      <div dir="ltr">I intend to render a 16 bit per channel, 4 channel
        image, i.e., each pixel is 4 x unsigned 16bit (uint16_t) RGBA,
        leading to 64bit per pixel. <br>
      </div>
    </blockquote></span>
    This clarified you probably need:<br>
    internal: GL_RGBA16UI<br>
    format: GL_RGBA<br>
    type: GL_UNSIGNED_SHORT<br>
    <br>
    <br>
    <a href="https://www.opengl.org/sdk/docs/man/docbook4/xhtml/glTexImage2D.xml" target="_blank">https://www.opengl.org/sdk/docs/man/docbook4/xhtml/glTexImage2D.xml</a><br>
    <br>
    Hope that helps<br>
    Cheers<span class="HOEnZb"><font color="#888888"><br>
    Sebastian <br></font></span><div><div class="h5">
    <blockquote type="cite">
      <div class="gmail_extra"><br>
        <div class="gmail_quote">2016-07-20 8:48 GMT+01:00 Sebastian
          Messerschmidt <span dir="ltr"><<a href="mailto:sebastian.messerschmidt@gmx.de" target="_blank">sebastian.messerschmidt@gmx.de</a>></span>:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div bgcolor="#FFFFFF" text="#000000">
              <div>Hi Bruno, <br>
              </div>
              <span>
                <blockquote type="cite">
                  <div>Ok so I meant GL_ vars. Could you suggest any
                    code for substituting that setImage line? Thank you</div>
                </blockquote>
                <br>
              </span> To what end? You haven't told us, what you want to
              achieve, except from using integer. <br>
              If you want to fill it with 16bit integer values you
              probably need <br>
              <br>
              <br>
              internal: GL_R16UI<br>
              format: GL_RED_INTEGER <br>
              type: GL_UNSIGNED_SHORT<br>
              <br>
              will give you a format, where the red channel is 16bit
              with unsigned values and your source type is unsigned
              short values. <br>
              <br>
              Cheers<span><font color="#888888"><br>
                  Sebastian <br>
                </font></span>
              <div>
                <div> <br>
                  <blockquote type="cite">
                    <div><br>
                      On 19 Jul 2016, at 09:35, Sebastian Messerschmidt
                      <<a href="mailto:sebastian.messerschmidt@gmx.de" target="_blank">sebastian.messerschmidt@gmx.de</a>>
                      wrote:<br>
                      <br>
                    </div>
                    <blockquote type="cite">
                      <div>
                        <div>Hi Bruno,<br>
                        </div>
                        <blockquote type="cite">
                          <div dir="ltr">
                            <div>
                              <div>Sorry but I didn't quite catch that.<br>
                              </div>
                              What do you mean by "but I thing you need
                              to use GL_RGBA_INTEGER_EXT as source"<br>
                            </div>
                          </div>
                        </blockquote>
                        The source type needs to be GL_RGBA_INTEGER_EXT
                        afaik when using integer textures. <br>
                        <blockquote type="cite">
                          <div dir="ltr">Alternatively, how can I
                            replace the macros in that setImage function
                            call?<br>
                          </div>
                        </blockquote>
                        Which macros? The GL_ are constants. <br>
                        <br>
                        Cheers<br>
                        Sebastian <br>
                        <blockquote type="cite">
                          <div class="gmail_extra"><br>
                            <div class="gmail_quote">2016-07-19 8:45
                              GMT+01:00 Sebastian Messerschmidt <span dir="ltr"><<a href="mailto:sebastian.messerschmidt@gmx.de" target="_blank">sebastian.messerschmidt@gmx.de</a>></span>:<br>
                              <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                                <div bgcolor="#FFFFFF" text="#000000">
                                  <div>Hi,<br>
                                    <br>
                                    Your internal format needs to be
                                    16bit per channel to I think, so
                                    GL_UNSIGNED_INT_8_8_8_8_REV might be
                                    inappropriate. <br>
                                    GL_R16UI might do, but I thing you
                                    need to use GL_RGBA_INTEGER_EXT as
                                    source. Alternatively you can use
                                    GL_LUMINANCE with GL_LUMINACE16F.<br>
                                    <br>
                                    What exactly are you doing with the
                                    image? <br>
                                    <br>
                                    Cheers<br>
                                    Sebastian<br>
                                  </div>
                                  <blockquote type="cite">
                                    <div>
                                      <div>
                                        <div dir="ltr">
                                          <div>
                                            <div>
                                              <div>
                                                <div>
                                                  <div>
                                                    <div>
                                                      <div>Hello,<br>
                                                        <br>
                                                      </div>
                                                      I have a 16bit per
                                                      channel, 4
                                                      channel, image.
                                                      The format is
                                                      short (uint16_t).
                                                      Note that this
                                                      image is scaled to
                                                      the full 16bit
                                                      depth [0, 65536]<br>
                                                      <br>
                                                      <br>
                                                    </div>
                                                    I have this code
                                                    that works well for
                                                    a 8bit, 4 channel
                                                    image:<br>
                                                    <br>
osg::ref_ptr<osg::Image> image = new osg::Image(); <br>
 image->setImage(ImageSize, ImageSize,1,<br>
                                                    GL_RGBA8,<br>
                                                    GL_RGBA,<br>
GL_UNSIGNED_INT_8_8_8_8_REV, <br>
                                                  </div>
                                                  MyDataPtr,<br>
osg::Image::NO_DELETE);<br>
                                                  <br>
                                                  <br>
                                                  <br>
                                                </div>
                                                Now I want to por this
                                                to 16bit depth.<br>
                                              </div>
                                              How is this done?<br>
                                              <br>
                                            </div>
                                            I tried<br>
                                            <br>
 image->setImage(ImageSize, ImageSize,1,<br>
                                            GL_RGBA16UI,<br>
                                            GL_RGBA,<br>
                                            GL_UNSIGNED_INT_8_8_8_8_REV,
                                            <br>
                                            MyDataPtr,<br>
                                            osg::Image::NO_DELETE);<br>
                                            <br>
                                          </div>
                                          But this yields all black
                                          textures. How can I do this
                                          without converting my 16bit
                                          image pixel data?<br>
                                        </div>
                                        <br>
                                        <fieldset></fieldset>
                                        <br>
                                      </div>
                                    </div>
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                                  <p><br>
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    <p><br>
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