Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47431358726624 (LWP 23094)]
0x00000000004de302 in R_FogFactor (s=-nan(0x7fffff), t=-nan(0x7fffff))
    at src/renderer/tr_image.c:2106
2106            d = tr.fogTable[ (int)(s * (FOG_TABLE_SIZE-1)) ];
(gdb) bt
#0  0x00000000004de302 in R_FogFactor (s=Cannot access memory at address 0x7fff31f74c4
c
) at src/renderer/tr_image.c:2106
Cannot access memory at address 0x7fff31f74c68