title: Full precision floating point textures on iPad 2
body: <p>Can somebody tell me if it is possible to use full precision floating point 2DTextures on the iPad2? (full precision = single precision)</p>
  
  <p>By printing out the implemented OpenGL extensions on the iPad2 using</p>
  
  <pre><code>glGetString(GL_EXTENSIONS)
  </code></pre>
  
  <p>I figured out that both <strong>OES_texture_half_float</strong> and <strong>OES_texture_float</strong> are supported.</p>
  
  <p>However, using <strong>GL_HALF_FLOAT_OES</strong> as the textures type works fine,</p>
  
  <pre><code>glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_HALF_FLOAT_OES, NULL);
  </code></pre>
  
  <p>whereas using <strong>GL_FLOAT</strong> results in an incomplete framebuffer object.</p>
  
  <pre><code>glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_FLOAT, NULL);
  </code></pre>
  
  <p>Am I making something wrong here or are full precision floating point textures just not supported?</p>
  
  <p>Thank u in advance.</p>