[Bug 94438] [HSW, regression, bisected] computeparticles demo renders no particles

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Mar 8 01:43:38 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=94438

            Bug ID: 94438
           Summary: [HSW, regression, bisected] computeparticles demo
                    renders no particles
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Vulkan/intel
          Assignee: jason at jlekstrand.net
          Reporter: nanleychery at gmail.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Created attachment 122156
  --> https://bugs.freedesktop.org/attachment.cgi?id=122156&action=edit
Incorrectly rendered app

On Gen7, and prior the following commit:

commit 38f4c11c2f5c00a1d2addddcd0508ad89a7cead4
Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Mon Feb 29 17:27:11 2016 -0800

    anv/pipeline: Pull 3DSTATE_SBE into a shared helper


the Sascha Willems computeparticles demo was rendering particles (albeit
incorrectly). Now however, no particles are rendered and only the gray
background is visible.

Reference:
https://github.com/SaschaWillems/Vulkan/blob/master/screenshots/compute_particles.png

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