Posted by clevengr on
URL: https://forum.jogamp.org/glUniformMatrix4dv-doesn-t-work-tp4026160.html

Hi all,
  I used glUniformMatrix4dv() to set the values in a uniform mat4 in my vertex shader.  It kept generating "GL_INVALID_OPERATION".  I finally thought to try converting the double[] containing the 16 matrix values (which did contain the values I wanted) to a float[], and calling glUniformMatrix4fv() instead.  It immediately started working correctly.
Is this a bug in JOGL, a bug in my driver (I did try it on two machines with substantially different cards, though both were nVidia), or something I'm overlooking in the spec somewhere?

Thanks.