[GRASS-dev] still togl problems in NVIZ for volume

[Michael Barton]

I'm using NVIZ in GRASS 6.3, built by William Kyngesbury on 18 August. I'm
running it on an iMac G5 with Gb RAM and a 2.1 GHz PPC processor (i.e., a
newish, but not supercharged system).

I'm currently displaying a volume with 44+ million voxels. It gets real slow
when I drop the polygon resolution below 8 or so. But otherwise seems to be
fine. Changing lighting is also slow, even when the display is not slow
otherwise.

Of course it could still crash in the next few minutes....

Michael

__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton


> From: Markus Neteler <neteler at itc.it>
> Date: Tue, 22 Aug 2006 14:46:52 +0200
> To: GRASS developers list <grass-dev at grass.itc.it>
> Subject: [GRASS-dev] still togl problems in NVIZ for volume
> 
> Hi,
> 
> NVIZ volume is still crashing, apparently this was
> introduced with the TOGL update or a related change
> (since it worked earlier):
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 182934096192 (LWP 10174)]
> 0x0000002a9559c3c7 in gvl_read_char (pos=59, data=0x0) at gvl_calc.c:603
> 603             return data[pos];
> (gdb) bt full
> #0  0x0000002a9559c3c7 in gvl_read_char (pos=59, data=0x0) at gvl_calc.c:603
> No locals.
> #1  0x0000002a9559dbe9 in gvld_isosurf (gvl=0x62ac90) at gvld.c:248
>         tx = 0.00224719103
>         ty = 0.00224719103
>         tz = 0.0224719103
>         cols = 890
>         rows = 510
>         depths = 6
>         x = 59
>         y = 0
>         z = 0
>         i = 1
>         iv = 42
>         xc = 29500
>         yc = 254500
>         zc = 0
>         xres = 500
>         yres = 500
>         zres = 500
>         j = -1788023744
>         p = 0
>         num = 17760
>         c_ndx = 0
>         crnt_ev = -1788023744
>         n = {0, 0, -1.05018851e-20}
>         pt = {-4.78461888e-26, 5.88545355e-44, 1.66341751e-38, 0}
>         n_i = 1
>         check_color = (int *) 0xb696b0
>         check_transp = (int *) 0xb679f0
>         check_material = (int *) 0xb4f6d0
>         check_emis = (int *) 0x9af9e0
>         check_shin = (int *) 0x9adc70
>         kem = (float *) 0xb57370
>         ksh = (float *) 0xb67c80
>         pkem = 1
>         pksh = 1
>         ktrans = (unsigned int *) 0xb62360
>         curcolor = (unsigned int *) 0xb1b400
>         pktransp = 0
>         pos = (int *) 0xb4c160
>         nz = (int *) 0x5b66a0
>         e_dl = (int *) 0xb69b30
>         tmp_pos = 42
>         edge_pos = {-994655516, -994655500, -994655412, -994655428, 0, 0,
> 536870912, 1082638125,
>   536870912, 1082638125, -445205505, 59}
>         modelMatrix = {0.0014787534018978477, -0.00034826830960810184,
> 0.0016558578936383128, 0,
>   0.0016920862253755331, 0.00030435970984399319, -0.0014470925088971853, 0, 0,
> 0.021990776062011719,
>   0.0046252096071839333, 0, -544.1253662109375, 14.187896728515625,
> -2496.742919921875, 1}
>         projMatrix = {3.794135570526123, 0, 0, 0, 0, 2.7474775314331055, 0, 0,
> 0, 0,
>   -1.0020020008087158, -1, 0, 0, -20.02001953125, 0}
>         viewport = {0, 0, 400, 552}
>         window = {1567, -1015, -1015, 1415}
>         isosurf = (geovol_isosurf *) 0xb52150
> #2  0x0000002a9559d143 in gvld_vol (gvl=0x62ac90) at gvld.c:38
> No locals.
> #3  0x0000002a95594c90 in GVL_draw_vol (vid=81721) at GVL2.c:287
>         gvl = (geovol *) 0x62ac90
> #4  0x00000000004246c1 in vol_draw_all_cmd (data=0x534aa0, interp=0x53e3a0,
> argc=1, argv=0x7fbfffe880)
>     at togl_flythrough.c:761
>         i = 0
>         nvols = 1
>         vol_list = (int *) 0x5ef840
> #5  0x00000000004248cc in Ndraw_all_together_cmd (data=0x534aa0,
> interp=0x53e3a0, argc=1,
>     argv=0x7fbfffe880) at togl_flythrough.c:807
>         buf_surf = 0x595a80 "1"
>         buf_vect = 0x595a80 "1"
>         buf_site = 0x595a80 "1"
>         buf_vol = 0x595a80 "1"
>         buf_north_arrow = 0x54c750 "0"
>         arrow_x = 0xab31f0 "999"
>         buf_label = 0x54c750 "0"
>         buf_legend = 0x54c750 "0"
>         buf_fringe = 0x54c750 "0"
>         buf_is_drawing = 0x5ef840 "9?\001"
> #6  0x0000002a96c1bc5b in TclInvokeStringCommand () from
> /usr/lib64/libtcl8.4.so
> No symbol table info available.
> #7  0x0000002a96c1d4c2 in TclEvalObjvInternal () from /usr/lib64/libtcl8.4.so
> No symbol table info available.
> #8  0x0000002a96c1ea5d in Tcl_EvalEx () from /usr/lib64/libtcl8.4.so
> No symbol table info available.
> #9  0x0000002a96c1ee05 in Tcl_Eval () from /usr/lib64/libtcl8.4.so
> No symbol table info available.
> #10 0x000000000042128e in display_cb (togl=0x6dfb00) at togl_cb.c:73
> No locals.
> #11 0x000000000041d8ab in Togl_Render (clientData=0x6dfb00) at togl.c:1163
>         togl = (Togl *) 0x6dfb00
> #12 0x0000002a96c73e2b in TclServiceIdle () from /usr/lib64/libtcl8.4.so
> No symbol table info available.
> #13 0x0000002a96c65182 in Tcl_DoOneEvent () from /usr/lib64/libtcl8.4.so
> No symbol table info available.
> #14 0x000000381c43b138 in Tk_MainLoop () from /usr/lib64/libtk8.4.so
> No symbol table info available.
> #15 0x000000381c4463c4 in Tk_MainEx () from /usr/lib64/libtk8.4.so
> No symbol table info available.
> #16 0x000000000041d155 in main (argc=4, argv=0x7fbffff068) at nvizMain.c:50
>         i = 0
> 
> I used the Slovakia3d dataset and launched it as
> nviz el=dem500 vol=precip3d.500z50
> 
> The error appears randomly, sometimes at startup,
> or when I add a new isosurface or the second or...
> 
> Any ideas?
> 
> Markus
> 
>