Author Topic: Kitchen interior  (Read 16316 times)

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Offline fario

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Re: Kitchen interior
« Reply #15 on: March 12, 2013, 06:09:07 am »
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This helps to flood the scene with light and to significantly decrease render time.

Dries?

could you please explain this to me?

Thank you.

Antoine

Offline DriesV

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Re: Kitchen interior
« Reply #16 on: March 12, 2013, 06:16:30 am »
Quote
This helps to flood the scene with light and to significantly decrease render time.

Dries?

could you please explain this to me?

Thank you.

Antoine

Sure thing...

When you depend entirely on an HDRI to light a scene through (tiny) windows, it will take very long to get rid of the noise in your image. It will take a long time for the HDRI light to bounce around your scene.
When you add a large planar area light in your interior, you significantly increase the light levels in your interior scene (you 'fill' the scene with light ;)) and the noise will clear up much faster.
A disadvantage of this approach is that the lighting looks less natural.

Dries
« Last Edit: March 12, 2013, 06:18:39 am by DriesV »

Offline PhilippeV8

Re: Kitchen interior
« Reply #17 on: March 12, 2013, 06:32:27 am »
Yes, but on the other hand ... how many times did you manage to take a good photo of an interior without adding lights/flash in real life ... it has to be quite sunny outside to start off with.
Still, a renderer should be made such that it's able to pull this off I think  ;)

Offline DriesV

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Re: Kitchen interior
« Reply #18 on: March 12, 2013, 06:34:18 am »
Sunny kitchen.
Zip package added in previous post...

Dries

Offline fario

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Re: Kitchen interior
« Reply #19 on: March 12, 2013, 06:47:08 am »
ok, thank you very much for your explanations.

Antoine

Offline fario

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Re: Kitchen interior
« Reply #20 on: March 12, 2013, 06:57:35 am »
Do you know why I have these artifacts?

I, however, put my maximum settings.

Antoine
« Last Edit: March 12, 2013, 07:08:23 am by Antoine »

Offline DriesV

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Re: Kitchen interior
« Reply #21 on: March 12, 2013, 07:28:17 am »
Do you know why I have these artifacts?

I, however, put my maximum settings.

Antoine

Because you're rendering with advanced render settings. :)
I find advanced rendering generally unsuitable for low lit and/or high GI dependant interior rendering.
Time/Sample limit rendering gives much better and more consistent quality.

Dries
« Last Edit: March 12, 2013, 07:30:11 am by DriesV »

Offline DriesV

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Re: Kitchen interior
« Reply #22 on: March 12, 2013, 07:42:03 am »
Another sunny shot.

Dries

Offline KeyShot

Re: Kitchen interior
« Reply #23 on: March 12, 2013, 07:46:56 am »
We are going to optimize KeyShot more for these kinds of interior shots in future releases and add support for a sun / skylight system.

Offline fario

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Re: Kitchen interior
« Reply #24 on: March 12, 2013, 07:49:57 am »
good job Dries!!! hehe 8)

Offline fario

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Re: Kitchen interior
« Reply #25 on: March 12, 2013, 09:23:33 am »
Scene completely closed, except the window.
Environment: Torino_Palace.
Lighting: only hdri and one spot (ies) against the wall.
Rendering time: 55 minutes - 8 core intel.

there are too many artefacts in the shadows.  :( :( :(

I think Keyshot solves quite well the lighting of the scene, with so little light.   :) :) :)

Antoine

Offline PhilippeV8

Re: Kitchen interior
« Reply #26 on: March 13, 2013, 12:38:42 am »
I've got a set of kitchen hoods that would fit so perfectly in this image ...  I'll do a render once I got KS4 installed here ...

Offline fario

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Re: Kitchen interior
« Reply #27 on: June 04, 2013, 02:09:08 am »
hahaahah!

I found a way ...

Antoine

Offline jbeau

Re: Kitchen interior
« Reply #28 on: June 13, 2013, 11:42:55 pm »
Cool, thx for sharing!!

Offline DriesV

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Re: Kitchen interior
« Reply #29 on: June 17, 2013, 05:48:24 am »
I've been revisiting this scene. Trying out some lighting methods.
The interior is fully enclosed (no open walls, no blown off ceiling), with two windows.
What I'm finding to work reeeeeally well for rendering interiors is a combination of:
  • blank HDRI (black) with a small ultra-bright, ultra-low falloff pin light
  • a plane with area light (all options off, except for light direction) placed behind every window (surface of area light larger than window area) with moderate brightness.
  • a plane with area light (all options off, except for light direction) placed inside the interior with low brightness.
The pin light mimics the sun and casts sharp shadows across the interior, as well as generates strong highlights.
The area lights act as fill lights to 'flood the scene' with light. They also mimic the ambient illumination of the sky. This does wonders to reduce image noise during realtime rendering.

Using this method, interiors can be rendered pretty fast. Even in realtime render modes. I think the quality that can be obtained is fantastic.
The image is an unedited KeyShot screenshot.
What do you think?

note: Now if only I could find some high quality contemporary interior models that would be workable (material grouping, part break-up...) in KeyShot straightaway... ::)

Dries
« Last Edit: June 17, 2013, 06:38:13 am by DriesV »