Hi(gh)!

I tried to render a 16-bit heightfield from an ASCII text file ( 
http://www.bergisch-afghanistan.de/povray/n80e014.txt ) using the 
attached script - the scene is parsed, and then POV-Ray crashes with an 
error:

*** Error in `povray': corrupted double-linked list: 0x00007fbc84048840 ***

or

*** Error in `povray': corrupted double-linked list: 0x00007f5ad0048800 ***

I tried also under Windows 7, using both 3.7 and 3.62, but then I always 
got the message "Can't open output file" - why?

See you in Khyberspace!

Yadgar

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Attachments:
Download 'ascii2png.pov.txt' (2 KB)

Le 24/02/2020 à 21:43, Jörg "Yadgar" Bleimann a écrit :
> Hi(gh)!
> 
> I tried to render a 16-bit heightfield from an ASCII text file (
> http://www.bergisch-afghanistan.de/povray/n80e014.txt ) using the
> attached script - the scene is parsed, and then POV-Ray crashes with an
> error:
> 
> *** Error in `povray': corrupted double-linked list: 0x00007fbc84048840 ***
> 
> or
> 
> *** Error in `povray': corrupted double-linked list: 0x00007f5ad0048800 ***
> 
> I tried also under Windows 7, using both 3.7 and 3.62, but then I always
> got the message "Can't open output file" - why?
> 
> See you in Khyberspace!
> 
> Yadgar

I tried on Linux, hgpovray (so not the true povray), compiled with gcc 8.
As well as 3.8.0-alpha.unofficial from 23 July 2019.

No reported problem. But maybe you have some additional options ?
(I just "povray ascii2png.pov", so it computes a png file.)

Memory usage by top: below 7 GB.

> ==== [Parsing...] ==========================================================
> Parsing 1117024K tokens
> File 'ascii2png.pov' line 68: Parse Warning: assumed_gamma not specified, so
>  gamma_correction is turned off for compatibility with this pre POV-Ray v3.7
>  scene. See the documentation for more details.
> File 'ascii2png.pov' line 68: Parse Warning: This scene did not contain a
>  #version directive. Please be aware that as of POV-Ray v3.7, unless already
>  specified via an INI option, a #version is expected as the first declaration in
>  a scene file. POV-Ray may apply settings to some features that are intended to
>  maintain compatibility with pre-v3.7 scenes. You are strongly encouraged to add
>  a #version statement to the scene to make your intent clear. Future versions of
>  POV-Ray may make the presence of a #version statement mandatory.
> ----------------------------------------------------------------------------
> Parser Statistics
> ----------------------------------------------------------------------------
> Finite Objects:      6481800
> Infinite Objects:          0
> Light Sources:             0
> Total:               6481800
> ----------------------------------------------------------------------------
> Parser Time
>   Parse Time:       0 hours  4 minutes 20 seconds (260.234 seconds)
>               using 1 thread(s) with 260.166 CPU-seconds total
>   Bounding Time:    0 hours  0 minutes 20 seconds (20.275 seconds)
>               using 1 thread(s) with 20.266 CPU-seconds total
> ----------------------------------------------------------------------------
> Render Options
>   Quality:  9
>   Bounding boxes.......On   Bounding threshold: 3
>   Antialiasing.........Off
> ==== [Rendering... Press p to pause, q to quit] ============================
> Rendered 480000 of 480000 pixels (100%)
> ----------------------------------------------------------------------------
> Render Statistics
> Image Resolution 800 x 600
> ----------------------------------------------------------------------------
> Pixels:           480000   Samples:               0   Smpls/Pxl: 0.00
> Rays:             480000   Saved:                 0   Max Level: 1/5
> ----------------------------------------------------------------------------
> Ray->Shape Intersection          Tests       Succeeded  Percentage
> ----------------------------------------------------------------------------
> Box                             480000          480000    100.00
> Bounding Box                  22727016         5760000     25.34
> ----------------------------------------------------------------------------
> ----------------------------------------------------------------------------
> ----------------------------------------------------------------------------
> Render Time:
>   Photon Time:      No photons
>   Radiosity Time:   No radiosity
>   Trace Time:       0 hours  0 minutes  0 seconds (0.125 seconds)
>               using 12 thread(s) with 1.186 CPU-seconds total
> POV-Ray finished
>

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Hi(gh)!

On 25.02.20 21:32, Le_Forgeron wrote:
> Le 24/02/2020 à 21:43, Jörg "Yadgar" Bleimann a écrit :

> I tried on Linux, hgpovray (so not the true povray), compiled with gcc 8.
> As well as 3.8.0-alpha.unofficial from 23 July 2019.
> 
> No reported problem. But maybe you have some additional options ?
> (I just "povray ascii2png.pov", so it computes a png file.)
> 
> Memory usage by top: below 7 GB.

As I started calculating the whole heightfield in one pass instead of 
two, the error disappeared! Strange...

But nevertheless, thanks for you suggestion!

See you in Khyberspace!

Yadgar

Now playing: Run through the Light (Yes)

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