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When playing around a scene, by mistake I hit the "run" button while an
include file was active. Instead of issuing the usual error message
"Scene does not contain any object or glows!", it only issued a warning
and rendered it!!!!
It even did the radiosity pretrace steps although there's no rad block
in the .inc (obviously!)
This is reproducible at will.
Is this a new behaviour or a bug?
Here's a bit of the output:
----------------------------------------------------------------------------
Warning: No objects in scene.
Scene contains 0 frame level objects; 0 infinite.
Statistics for C:\Program Files\POV-Ray for Windows
v3.1\Projets\Contraste\tiananmen.inc, Resolution 800 x 600
----------------------------------------------------------------------------
Pixels: 480800 Samples: 480800 Smpls/Pxl: 1.00
Rays: 480800 Saved: 0 Max Level: 1/5
----------------------------------------------------------------------------
Ray->Shape Intersection Tests Succeeded Percentage
----------------------------------------------------------------------------
----------------------------------------------------------------------------
Calls to Noise: 0 Calls to DNoise: 10
----------------------------------------------------------------------------
----------------------------------------------------------------------------
Smallest Alloc: 25 bytes Largest: 16044
Peak memory used: 1844544 bytes
----------------------------------------------------------------------------
Time For Trace: 0 hours 0 minutes 2.0 seconds (2 seconds)
Total Time: 0 hours 0 minutes 2.0 seconds (2 seconds)
POV-Ray finished
----------------------------------------------------------------------------
Pov.3.5.Beta4.win32 Athlon 650MHz, Win98SE, 128MB.
--
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/* flabreque */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/* @ */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/* videotron.ca */}camera{location<6,1.25,-6>look_at a orthographic}
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"Francois Labreque" <fla### [at] videotron ca> wrote in message
news:3BB### [at] videotronca...
> When playing around a scene, by mistake I hit the "run" button while an
> include file was active. Instead of issuing the usual error message
> "Scene does not contain any object or glows!", it only issued a warning
> and rendered it!!!!
>
> It even did the radiosity pretrace steps although there's no rad block
> in the .inc (obviously!)
>
> This is reproducible at will.
>
> Is this a new behaviour or a bug?
I didn't find that happening here. Was an ini used, or any included files
within the inc?
Beta4 (and iB4), WinMe, PIII
Bob H.
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Bob H. wrote:
> "Francois Labreque" <fla### [at] videotronca> wrote in message
> news:3BB### [at] videotronca...
>>
>>It even did the radiosity pretrace steps although there's no rad block
>>in the .inc (obviously!)
>>
>>This is reproducible at will.
>>
>>Is this a new behaviour or a bug?
>>
>
> I didn't find that happening here. Was an ini used, or any included files
> within the inc?
Nope. I use the standard .ini files provided with the package. My .inc
is 700 lines of #declares, but I've just retested it with "colors.inc"
and it does the same thing.
--
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/* flabreque */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/* @ */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/* videotron.ca */}camera{location<6,1.25,-6>look_at a orthographic}
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Francois Labreque <fla### [at] videotronca> wrote:
: When playing around a scene, by mistake I hit the "run" button while an
: include file was active. Instead of issuing the usual error message
: "Scene does not contain any object or glows!", it only issued a warning
: and rendered it!!!!
The malfunction being?
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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Warp wrote:
>
> Francois Labreque <fla### [at] videotronca> wrote:
> : When playing around a scene, by mistake I hit the "run" button while an
> : include file was active. Instead of issuing the usual error message
> : "Scene does not contain any object or glows!", it only issued a warning
> : and rendered it!!!!
>
> The malfunction being?
In POV-Ray v3.1g when there were no objects in the scene the renderer
stopped and returned an error message. In POV-Ray v3.5b the renderer
does not stop when there are no objects in the scene and returns
a warning instead. I don't recall if this was an intentional change
or not.
--
Ken Tyler - POV-Ray Technical Assistance Group
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Warp wrote:
> Francois Labreque <fla### [at] videotronca> wrote:
> : When playing around a scene, by mistake I hit the "run" button while an
> : include file was active. Instead of issuing the usual error message
> : "Scene does not contain any object or glows!", it only issued a warning
> : and rendered it!!!!
>
> The malfunction being?
>
Going to the trouble of shooting 480800 rays and outputing a black
800x600 image when it already knows this is not a scene. I can
understand parsing the file as it might have side effects such as
producing output for animations or something of the sort, but previous
versions did not go through the actual process of rendering an empty scene.
Compare the output of trying to render "glass.inc" from the include
directory:
POV 3.5 Beta4:
----------------------------------------------------------------------------
Warning: No objects in scene.
Scene contains 0 frame level objects; 0 infinite.
Statistics for C:\Program Files\POV-Ray for Windows
v3.5\include\glass.inc, Resolution 800 x 600
----------------------------------------------------------------------------
Pixels: 480800 Samples: 480800 Smpls/Pxl: 1.00
Rays: 480800 Saved: 0 Max Level: 1/5
----------------------------------------------------------------------------
Ray->Shape Intersection Tests Succeeded Percentage
----------------------------------------------------------------------------
----------------------------------------------------------------------------
Calls to Noise: 0 Calls to DNoise: 10
----------------------------------------------------------------------------
----------------------------------------------------------------------------
Smallest Alloc: 25 bytes Largest: 16044
Peak memory used: 94683 bytes
----------------------------------------------------------------------------
Time For Trace: 0 hours 0 minutes 2.0 seconds (2 seconds)
Total Time: 0 hours 0 minutes 2.0 seconds (2 seconds)
POV-Ray finished
----------------------------------------------------------------------------
POV 3.1:
----------------------------------------------------------------------------
#version Glass_Inc_Temp;
#end
<----ERROR
C:\Program Files\POV-Ray for Windows v3.1\include\glass.inc:159: error:
No objects in scene.
Returned from renderer (non-zero return value)
----------------------------------------------------------------------------
MegaPOV 0.7:
----------------------------------------------------------------------------
#version Glass_Inc_Temp;
#end
<----ERROR
C:\Program Files\POV-Ray for Windows v3.1\include\glass.inc:159: error:
No objects or glows in scene.
Returned from renderer (non-zero return value)
----------------------------------------------------------------------------
--
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/* flabreque */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/* @ */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/* videotron.ca */}camera{location<6,1.25,-6>look_at a orthographic}
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Ken <tyl### [at] pacbellnet> wrote:
: In POV-Ray v3.1g when there were no objects in the scene the renderer
: stopped and returned an error message. In POV-Ray v3.5b the renderer
: does not stop when there are no objects in the scene and returns
: a warning instead. I don't recall if this was an intentional change
: or not.
It is intentional.
(The reason is that POV-Ray shouldn't judge the intelligence of the user:
If the user really wants to render a scene with no objects, then POV-Ray should
just do it. Doing this is not so crazy as one may think, as there are at least
to clear situations where this is useful:
1: If you want to render a sky_sphere only (this makes sense sometimes as
the sky_sphere can have any pigment).
2: If you have an animation where there are some frames with absolutely
no objects.
In both cases you previously had to add invisible and useless dumb objects
to the scene in order to render it. This doesn't really make sense.)
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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Francois Labreque <fla### [at] videotronca> wrote:
: Going to the trouble of shooting 480800 rays and outputing a black
: 800x600 image when it already knows this is not a scene.
The sky_sphere is not considered an object and yet you can get an image
very rich in details with it.
Also there are cases where in an animation you want to render some empty
frames.
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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In article <3BB9B73F.22452E23@pacbell.net> , Ken <tyl### [at] pacbellnet>
wrote:
> I don't recall if this was an intentional change
> or not.
Intentional. there was some discussion somewhere about it a few weeks ago
and I added it after that. I dodn't remember when exactly I made the
change, but I know I made it. It might be in revision.txt or changes.txt in
the distribution.
Thorsten
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I find this really handy. Now I can generate a list file for cmpeg directly
from POV-Ray!
--
Jonathan
"Francois Labreque" <fla### [at] videotronca> ha scritto nel messaggio
news:3BB### [at] videotronca...
> When playing around a scene, by mistake I hit the "run" button while an
> include file was active. Instead of issuing the usual error message
> "Scene does not contain any object or glows!", it only issued a warning
> and rendered it!!!!
>
> It even did the radiosity pretrace steps although there's no rad block
> in the .inc (obviously!)
>
> This is reproducible at will.
>
> Is this a new behaviour or a bug?
>
> Here's a bit of the output:
> --------------------------------------------------------------------------
--
> Warning: No objects in scene.
>
> Scene contains 0 frame level objects; 0 infinite.
>
> Statistics for C:\Program Files\POV-Ray for Windows
> v3.1\Projets\Contraste\tiananmen.inc, Resolution 800 x 600
> --------------------------------------------------------------------------
--
> Pixels: 480800 Samples: 480800 Smpls/Pxl: 1.00
> Rays: 480800 Saved: 0 Max Level: 1/5
> --------------------------------------------------------------------------
--
> Ray->Shape Intersection Tests Succeeded Percentage
> --------------------------------------------------------------------------
--
> --------------------------------------------------------------------------
--
> Calls to Noise: 0 Calls to DNoise: 10
> --------------------------------------------------------------------------
--
> --------------------------------------------------------------------------
--
> Smallest Alloc: 25 bytes Largest: 16044
> Peak memory used: 1844544 bytes
> --------------------------------------------------------------------------
--
> Time For Trace: 0 hours 0 minutes 2.0 seconds (2 seconds)
> Total Time: 0 hours 0 minutes 2.0 seconds (2 seconds)
>
> POV-Ray finished
> --------------------------------------------------------------------------
--
>
> Pov.3.5.Beta4.win32 Athlon 650MHz, Win98SE, 128MB.
> --
> /*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
> /* flabreque */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
> /* @ */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
> /* videotron.ca */}camera{location<6,1.25,-6>look_at a orthographic}
>
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