[Bug 105895] Insurgency fire effects creates black circles around it

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105895

Danylo <danylo.piliaiev at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |danylo.piliaiev at gmail.com

--- Comment #7 from Danylo <danylo.piliaiev at gmail.com> ---
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

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-3d-bugs/attachments/20180529/a5060391/attachment.html>