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Ceciliabr
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Same image – like night & day - a miracle?

A "strange phenomena" occurred when I was making an illustration for this discussion.
I must have accidentally changed the time from day to night (which I would presume should not have any effect when rendering an image in a room without windows), and all of a sudden my ceiling had gone black.
And not only that, as you can see:

Daytime:


Night:


I tried changing the settings, but it had no effect.
The ceiling goes black when the sun goes down:



Is there any rational explanation for this peculiar abnormality?

Cec

edit:
I have a link to the sh3d-file here .
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[Edit 1 times, last edit by Ceciliabr at Sep 30, 2017 12:08:45 PM]
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bdfd
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Re: Same image – like night & day - a miracle?

@cec,

I've found the same result. crying
For a minute I thought of the absence of roof.
But no change with a roof... very Strange !
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with W10 64b 1709 (16.299.19) / Core i7-4790 - RAM 16 MB / GeForce GTX770 2 Go Full HD
sh3d 5.6 with java 1.8.0_144 & java3D 1.6.0
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[Edit 1 times, last edit by bdfd at Sep 30, 2017 1:19:27 PM]
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enkonyito
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Re: Same image – like night & day - a miracle?

Is there any rational explanation for this peculiar abnormality?

This is a "normal" behavior of the renderer.

The default global illumination uses Ambient Occlusion and its parameters allow to have at daytime a minimum luminosity in a room completely closed.
So at night, without additional lighting, the image is black.

P.S.: At daytime, you have the same effect with diffusedBounces=0.
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Ceciliabr
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Re: Same image – like night & day - a miracle?

@ enkonyito

This is a "normal" behavior of the renderer.


Ok. That's good to know.

I have noticed some other forms of "unexpected behaviour" that you might interested in:



It seems the wall texture is not rendering like it should when I'm using the Create photo with renderer:

Here with the default renderer:


And here with the Create photo with renderer:


The texture of the ground beneath the cobblestones don't look right. It has some kind of waffle-appearance compared to the image rendered with the default renderer.

I wanted to see if the same happened at daytime:


It seems it did.

Here with the default renderer:



And this is with the Create photo with renderer::


And, as you can see, it's not only the walls and the ground texture that are different, the bicycle stand and the football also renders with a different looking texture.

I have the v1.3.2 version of the Create photo with renderer, and my settings for these renderings are the default settings of Q4.


Cec.
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enkonyito
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Re: Same image – like night & day - a miracle?

You should use the PhotoVideoRendering plug-in .
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Ceciliabr
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Re: Same image – like night & day - a miracle?

@ enkonyito

Aha! A lot better.
But there's a minor issue with the light...



It seems the positioning of the light source is not correct, compared to the default renderer.

cec
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enkonyito
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Re: Same image – like night & day - a miracle?

Cecilia,

Which version of Sweet Home 3D and PhotoVideoRendering plug-in do you use?
Since SH3D-5.5 the lights are managed differently, in this case it is necessary to use the last version of the plug-in (PVR-1.3).

If the problem persists, can you send me your file?
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Ceciliabr
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Re: Same image – like night & day - a miracle?

@enkonyito

Perfect! smile



cec
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