[Bug 95285] [radeonsi] Tomb Raider: enabling TressFX makes hair disappear

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95285

            Bug ID: 95285
           Summary: [radeonsi] Tomb Raider: enabling TressFX makes hair
                    disappear
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: kai at dev.carbon-project.org
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 123497
  --> https://bugs.freedesktop.org/attachment.cgi?id=123497&action=edit
No hair with TressFX

When I enable TressFX in Tomb Raider with the stack detailed below, Lara's hair
disappears partially (the part rendered with TressFX). Going back to "normal"
settings makes the hair fully visible again. The attached screenshot shows how
it looks with TressFX enabled.

I thought it might help to set the GLSL and GL overrides to 430 and 4.3
respectively, but then the game launcher refuses to start with tons of
GL_INVALID_OPERATION errors (see <https://paste.debian.net/hidden/84a0115a/>).
Not sure if this is a bug in the launcher or Mesa, but since 4.3 support is
imminent I thought I mention it here as well.


The following stack (Debian testing as a base) was used:
GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1)
Mesa: Git:master/76a36ac3ea
libdrm: 2.4.67-1
LLVM: SVN:trunk/r268388 (3.9 devel)
X.Org: 2:1.18.3-1
Linux: 4.5.1
Firmware: firmware-amd-graphics/20160110-1
libclc: Git:master/20d977a3e6
DDX: 1:7.7.0-1

Let me know, if you need something else.

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