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[Bug 790634] Re: nux with GLSL shaders doesn't work on Mesa

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Marco Trevisan (Treviño) <mail@xxxxxxxxx>
Date: Thu, 24 Jul 2014 22:00:28 -0000
Reply-to: Bug 790634 <790634@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: unity (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/790634

Title:
  nux with GLSL shaders doesn't work on Mesa

Status in Nux:
  Fix Released
Status in Unity:
  Fix Released
Status in Unity Foundations:
  Fix Released
Status in “nux” package in Ubuntu:
  Fix Released
Status in “unity” package in Ubuntu:
  Fix Released

Bug description:
  When forcing nux to use the GLSL shaders (instead of ARB asm), all I
  get is a black screen.

  The problem is that the index in the iteration of active attributes in
  NuxGraphics/IOpenGLGLSLShader.cpp is also used as the location index
  for the attribute. This is not correct. The GL spec for
  glGetActiveAttrib clearly states:

  "Note that index simply identifies a member in a list of active attributes, and has no relation to the generic
  attribute that the corresponding variable is bound to"

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