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<body><span class="vcard"><a class="email" href="mailto:danylo.piliaiev@gmail.com" title="Danylo <danylo.piliaiev@gmail.com>"> <span class="fn">Danylo</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - Insurgency fire effects creates black circles around it"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105895">bug 105895</a>
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<th>What</th>
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<td style="text-align:right;">CC</td>
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<td>danylo.piliaiev@gmail.com
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Insurgency fire effects creates black circles around it"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105895#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Insurgency fire effects creates black circles around it"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105895">bug 105895</a>
from <span class="vcard"><a class="email" href="mailto:danylo.piliaiev@gmail.com" title="Danylo <danylo.piliaiev@gmail.com>"> <span class="fn">Danylo</span></a>
</span></b>
<pre>Hello, I have found the issue which seems not to be in Mesa.
In shader FS_19de0fe8981e63840fa1221c1fc63023e07bc23d.glsl (shader for fire)
there is a 'uniform vec4 pc[2]' which has different values on Intel and Radeon
GPU:
Intel - set program 1564 uniform "pc" (loc 62, type "vec4", length 2, transpose
= false) to: 0 2 0 1 , 0.214041 0 0 0
Radeon - set program 1623 uniform "pc" (loc 62, type "vec4", length 2,
transpose = false) to: 0 2 0 1 , 0.5 0 0 0
In shader 'pc[1].x' is used several times which leads to the found visual
difference. When changing usage of 'pc[1].x' to '0.5' the results are visually
identical.
I have attached the result of changing 'pc[1].x' into '0.5' on Intel GPU.
Also when I debugged Mesa I saw that the memory from where pc uniform is taken
is always changed by game including setting of value '0.214041':
#0 0xf7c4506a in ?? () from /lib/i386-linux-gnu/libc.so.6
#1 0xefddf6ba in ?? () from insurgency2/bin/shaderapidx9.so
#2 0xeda2e338 in ?? () from insurgency2/bin/stdshader_dx9.so
#3 0xeda7a423 in ?? () from insurgency2/bin/stdshader_dx9.so
#4 0xf1d51d28 in ?? () from insurgency2/bin/materialsystem.so
#5 0xf1ce7dba in ?? () from insurgency2/bin/materialsystem.so</pre>
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