[Bug 26123] New: Rendering to offscreen depth-texture fails

[Bug 26123] New: Rendering to offscreen depth-texture fails

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26123

           Summary: Rendering to offscreen depth-texture fails
           Product: Mesa
           Version: git
          Platform: Other
               URL: http://fabiensanglard.net/shadowmapping/index.php
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/R600
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: pavel@rojtberg.net


driver: r300g, latest git on ubuntu lucid. (Kernel 2.6.32)

when executing the linked demo, the shadowmap is being misrendered and on the
console there is a lot of vomit in the style of:

Pkt3 at 306 :
    PACKET3_3D_LOAD_VBPNTR:
        0x00000001
        0x00000603
        0x000004B0
Pkt3 at 310 :
    PACKET3_NOP:
        0x00000004
Pkt0 at 312 (1 dwords):
    0x0003AAAA -> 0x4278
Pkt0 at 314 (1 dwords):
    0x00000000 -> 0x2138
Pkt0 at 316 (1 dwords):
    0x00000017 -> 0x2134
Pkt3 at 318 :
    PACKET3_3D_DRAW_VBUF_2:
        0x0018002D
...

If I change the code and add a COLOR_ATTACHMENT texture to the FBO the vomit
goes away, but the shadowmap is still misrendered.


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[Bug 26123] Rendering to offscreen depth-texture fails

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26123


Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Drivers/DRI/R600            |Drivers/DRI/r300




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[Bug 26123] Rendering to offscreen depth-texture fails

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26123


Corbin Simpson <MostAwesomedude@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |MostAwesomedude@gmail.com
             Status|NEW                         |ASSIGNED




--- Comment #1 from Corbin Simpson <MostAwesomedude@gmail.com>  2010-03-19 16:36:57 PST ---
Try again with current git?


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[Bug 26123] Rendering to offscreen depth-texture fails

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26123





--- Comment #2 from Pavel Rojtberg <pavel@rojtberg.net>  2010-03-20 04:08:55 PST ---
Created an attachment (id=34252)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=34252)
rendering errors with shadowmap


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[Bug 26123] Rendering to offscreen depth-texture fails

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26123





--- Comment #3 from Pavel Rojtberg <pavel@rojtberg.net>  2010-03-20 04:09:24 PST ---
the vomit went away when the drm in lucid was updated to 2.6.33. With the
current mesa git the shadowmap is rendered correctly, but the final picture is
still misrendered. (see screenshot)


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[Bug 26123] Rendering to offscreen depth-texture fails

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26123





--- Comment #4 from Corbin Simpson <MostAwesomedude@gmail.com>  2010-03-26 06:12:55 PST ---
Created an attachment (id=34478)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=34478)
Failed shadowmap CS


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[Bug 26123] Rendering to offscreen depth-texture fails

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=26123

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Drivers/DRI/r300            |Mesa core
         AssignedTo|dri-devel@lists.sourceforge |mesa3d-dev@lists.sourceforg
                   |.net                        |e.net

--- Comment #5 from Marek Olšák <maraeo@gmail.com> 2010-04-11 19:55:17 PDT ---
The demo more or less works here with latest kernel and libdrm (2.6.32 is too
old), but I think Mesa doesn't like the way shadow samplers are used here as it
fails with gallium/softpipe too. I am changing the component to Mesa core.

In the meantime, please use the sampler type sampler2DShadow and the fetching
function shadow2D. That should work.

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