From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 66067] Trine 2's fragment normal buffer is mixtextured on Radeon HD 6770 (Juniper) Date: Wed, 18 Sep 2013 01:55:04 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1388824107==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id DD7D7E7794 for ; Tue, 17 Sep 2013 18:55:04 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1388824107== Content-Type: multipart/alternative; boundary="1379469304.f06eA6742.20817"; charset="us-ascii" --1379469304.f06eA6742.20817 Date: Wed, 18 Sep 2013 01:55:04 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=66067 --- Comment #11 from Grigori Goronzy --- > ARB_fragment_program_shadow may leave it undefined, but the GL spec ... Which spec exactly? GL specifications only cover GLSL shaders. ARB_fragment_program is separate from that and has its own rules. The extension specification clearly states that behaviour is undefined. Besides, OpenGL contradicts itself a little bit: in GL 4.4 spec, 15.2.1 it states that behaviour is undefined for this case, too. It makes much more sense anyway, shadow sampling is wildly different from sampling a texture normally in terms of what the sampling result look like. -- You are receiving this mail because: You are the assignee for the bug. --1379469304.f06eA6742.20817 Date: Wed, 18 Sep 2013 01:55:04 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 11 on bug 66067 from 
> ARB_fragment_program_shadow may leave it undefined, but the GL spec ...

Which spec exactly? GL specifications only cover GLSL shaders.
ARB_fragment_program is separate from that and has its own rules. The extension
specification clearly states that behaviour is undefined.

Besides, OpenGL contradicts itself a little bit: in GL 4.4 spec, 15.2.1 it
states that behaviour is undefined for this case, too. It makes much more sense
anyway, shadow sampling is wildly different from sampling a texture normally in
terms of what the sampling result look like.

You are receiving this mail because:
  • You are the assignee for the bug.
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