I made this kitchen rendering based on some model from grabcad.
It is primarily an exercise for interior lighting in KS4.
The interior is fully enclosed. There are not open walls or ceilings.
- I used an all-black HDR with one small, very bright pin light to act as a sun to let light in through the single window.
- For the lights under the cabinets I used an area light for the lamp glow and I applied an IES light to a copy of the lamp geometry, that I translated a bit (x, y) away from the area lights to get the right effect on the wall.
- I added a large rectangular area light behind the camera to act as a 'fill light'. This helps to flood the scene with light and to significantly decrease render time. A disadvantage to this method is that it takes away the natural appearance of daylight coming in through the window.
I did a bit of postwork in Photoshop to get some glow on the window, add vignetting and do some color tweaking.
** ::)
KeyShot development suggestion ::)**
I think the result is pretty convincing, but I do miss some sun/sky parameters to control sun light for interiors.
To some extent it can be done using a pin light to act as the sun, but it is sometimes a pain to get the 'sun' properly oriented. Let alone simulating different daytimes (changing angle of incidence and color temperature).
Dries
original KeyShot rendering.
Dries
A slightly warmer, more atmospheric version of the same rendering.
Plus, I added some lens blurring using a depth pass.
Dries
Another variation, with dusk lighting.
Dries
Nice Dries, this is a very difficult thing to do with KeyShot without a physical sky system and light portals...
You don't see this kind of stuff being attempted in KS very much, it's the same with exterior sun shots like the one I uploaded not so long ago, which for some reason the KS guys never commented on ???
Quote from: biomechanic on March 11, 2013, 10:23:36 AM
Nice Dries, this is a very difficult thing to do with KeyShot without a physical sky system and light portals...
You don't see this kind of stuff being attempted in KS very much, it's the same with exterior sun shots like the one I uploaded not so long ago, which for some reason the KS guys never commented on ???
John, I agree that a sun/sky system would be a lifesaving feature with respect to interior rendering. ;)
I find it quite difficult to get an even quality of lighting when using an HDRI to flood a scene through windows.
It's still heaps of fun though, when it DOES work and gives great results. :)
Dries
Looks very nice. We do have a physical sky system developed, but just not exposed.
Quote from: Thomas Teger on March 11, 2013, 12:53:49 PM
Looks very nice. We do have a physical sky system developed, but just not exposed.
I reckon the UI isn't ironed out yet?
So a sun/sky system might be something that's coming in a future point or major release?
Dries
It may come in a future version or future major release.
Hey DriesV..the last one image is going real nice!!!!...I'm following this one thread..i'm real interested in this your work!
Good Job..
Aldo
very nice your work.
I am interested as you, test Keyshot for architectural renderings.
I'll spend a little time on your model for testing.
Antoine
Thanks all!
I'm currently running a nighttime rendering in the background (lit 95% by IES lights). I'll post an image when it's finished.
I'll also upload the ksp files of the different daytime scenes, so you can take a look. I hope I'll get some feedback on them. I'm always open to optimizing my scenes. ;D
Dries
Kitchen by night.
Dries
Nice atmosphere.
Tell me? do you think I should post on your topic, and test my vision of this scene?
Or should I create a new topic?
or, we could create a topic: kitchen testing
Antoine
Here you have it: download links for the KS4 KeyShot scenes...
Kitchen @ noon (https://docs.google.com/file/d/0Bw6BI0tv_sN8T1lHN3pGRzMwaFk/edit?usp=sharing)Kitchen @ sunny (https://docs.google.com/file/d/0Bw6BI0tv_sN8SXRVU1daVFpSaWc/edit?usp=sharing)Kitchen @ dusk (https://docs.google.com/file/d/0Bw6BI0tv_sN8SFp2M2VNOVR6QTQ/edit?usp=sharing)Kitchen @ night (https://docs.google.com/file/d/0Bw6BI0tv_sN8YnpsSTZlQmNSekE/edit?usp=sharing)Each zip archive contains:
- KeyShot package file (ksp)
- PSD file used to create final image
- Final image
I hope to get feedback from you guys!
note: Antoine, post as you please in this topic if you want. :)
Dries
QuoteThis helps to flood the scene with light and to significantly decrease render time.
Dries?
could you please explain this to me?
Thank you.
Antoine
Quote from: Antoine on March 12, 2013, 06:09:07 AM
QuoteThis 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
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 ;)
Sunny kitchen.
Zip package added in previous post...
Dries
ok, thank you very much for your explanations.
Antoine
Do you know why I have these artifacts?
I, however, put my maximum settings.
Antoine
Quote from: Antoine on March 12, 2013, 06:57:35 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
Another sunny shot.
Dries
We are going to optimize KeyShot more for these kinds of interior shots in future releases and add support for a sun / skylight system.
good job Dries!!! hehe 8)
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
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 ...
hahaahah!
I found a way ...
Antoine
Cool, thx for sharing!!
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
Same image with curve and color adjustments in Photoshop.
Dries
Absolutely lovely Dries. Love the colors!
Great - thanks for sharing.
Quote from: josh3d on June 17, 2013, 06:30:58 AM
Absolutely lovely Dries. Love the colors!
Thanks!
I have a borderline fetish for that green and blue. :P
Dries
No doubt! Especially with their reflections you're getting in the other materials! NICE.
Hmm, I had my doubts about the DOF I applied...
I put the focus on the window now. Feels more natural.
Dries
If you rendered a few of these out and rotated the camera (no DOF) you could stitch them together and have yourself a pretty nice HDRI...?
Here's a warm, soft evening shot.
Lit entirely by area light planes.
Dries
Hello,
your tests really interests me.
But I find it hard to understand your strategies.
Would you have a screenshot with your visible light sources? interior and exterior. wired?
Antoine
Quote from: Antoine on June 18, 2013, 01:48:05 AM
Hello,
your tests really interests me.
But I find it hard to understand your strategies.
Would you have a screenshot with your visible light sources? interior and exterior. wired?
Antoine
Here's a KeyShot (4.1 beta) package of my scene.
I made some minor changes to my floor materials and the extractor. These changes are included in the ksp as well.
https://docs.google.com/file/d/0Bw6BI0tv_sN8UFNmRkFaazluWUU/edit?usp=sharing (https://docs.google.com/file/d/0Bw6BI0tv_sN8UFNmRkFaazluWUU/edit?usp=sharing)
Dries
:) :) :) :)
a big thank you!
Antoine
Quote from: Antoine on June 18, 2013, 05:10:14 AM
:) :) :) :)
a big thank you!
Antoine
No prob! ;)
You can post some render results here if you want to...
Dries
Here's another shot.
I let it cook a bit longer (screenshot at 1600x900 after 2.5 hours rendering).
Dries