Dear

You must check a povray.c.

Y.Tanabe
Kobe,Japan

***********************************************
 #ifdef df3OuputPatch
   // disable continue trace if df3 output selected
   if(opts.OutputFormat == 'd' || opts.OutputFormat == 'D')
   {
     if(opts.Options & CONTINUE_TRACE)
     {
        Warning(0.0,"Disabling continue-trace");
        opts.Options &= ~CONTINUE_TRACE;
     }
   }
 #endif
***********************************************
   if((opts.Options & DISKWRITE) && (opts.Options & CONTINUE_TRACE))
   {
     Read_Rendered_Part(Actual_Output_Name);

     if(opts.Last_Line > Frame.Screen_Height)
        opts.Last_Line = Frame.Screen_Height;

     if(opts.Last_Column > Frame.Screen_Width)
        opts.Last_Column = Frame.Screen_Width;
   }
*******************************************************

    if(opts.Options & CONTINUE_TRACE)
    {
      Stage = STAGE_CONTINUING;

     
if(Open_File(Output_File_Handle,Actual_Output_Name,&Frame.Screen_Width,&Frame.Screen_Height,Buffer_Size,READ_MODE)
!= 1)
      {
        Close_File(Output_File_Handle);

        Warning(0,"\nError opening continue trace output file.\n");
        Warning(0,"Opening new output file %s.\n",Actual_Output_Name);

        /* Turn off continue trace */

        opts.Options &= ~CONTINUE_TRACE;

       
if(Open_File(Output_File_Handle,Actual_Output_Name,&Frame.Screen_Width,&Frame.Screen_Height,Buffer_Size,WRITE_MODE)
!= 1)
        {
          Error("Error opening output file.");
        }
       // CHANGEFILETYPE
      }
    }
    else
    {
     
if(Open_File(Output_File_Handle,Actual_Output_Name,&Frame.Screen_Width,&Frame.Screen_Height,Buffer_Size,WRITE_MODE)
!= 1)
      {
        Error("Error opening output file.");
      }
      //CHANGEFILETYPE
    }
**********************************************************


Tim Nikias wrote:

> Hm. So, is it for BMP? I couldn't find that,
> just this:
> "Some image formats (namely TGA and PNG) also
> store information about where the file started..."
>
> The image is already tracing a couple a days, and it looks
> like another one to go, but I'm getting impatient on other
> projects... I didn't use the Create_Ini option, so
> I guess that's too late now, right?
>
> Another thing: The render-menu has this rerun-entry.
> I can select which files to rerun, and if I want to
> continue the latest file.
> If I use a second instance of POV, I gather that
> POV will overwrite the "last scene traced" info.
> Any way to restore POV to think that another file
> needs to be continued? Continue did work for
> BMP until now, so I guess the problem is just
> to have POV think which file to continue.
>
> Thanks for your help!
>
> Thorsten Froehlich wrote:
>
> > Yes, it looks at the image file.  How exactly it is done depends to some
> > extend on the image format used.  Also note that continue trace is not
> > supported for all image formats as noted in the docs somewhere.
>
> --
> Tim Nikias
> Homepage: http://www.digitaltwilight.de/no_lights/index.html
> Email: Tim### [at] gmxde

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