How physically based, photometric lighting can improve 3D renders + FREE Blender addons for it
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- čas přidán 13. 04. 2020
- Introducing physically based, photometric lighting for Cycles and Eevee. Learn about the strength and color of lights and how those two properties interact.
Starting with Blender? Watch the free tutorial series "Getting Started with Blender" b3d.cgcookie.com/V43LvB
Get the full Extra Lights addon with 60+ presets on the Blender market 👉 b3d.cgcookie.com/WJlgXO
You can also find it with the 20 basic presets on GitHub: github.com/jlampel/extra_lights
Also check out the Photographer addon! gumroad.com/chafouin#FWQf
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1:10 The technical term for that soft shadow edge is the “penumbra”.
Wow, this should be in the Blender default addons!!!
This should be default
Of course...it's cool
You're a true hero to the blender community. When I just got started I was always fiddling around with lighting for hours and hours and would end up being confused because it wouldn't look very real, after all that wasted time. This is the answer to all of my questions regarding this. Thanks!
Hey, physicist here. Note that sometimes light is even more complex than that: even with exact temperatures, wattage and so on, an LED lamp will only look like the sun if you stare at them directly, not at the things they light up. The full spectrum of LED lamps is still different, and different materials (paints, plants, tissues, tinted glasses) can look very different under two "matching" lights.
Oh and there's polarisation, but that only matters if you want realistic looks through sunglasses or something, otherwise just adding a bit of color filtering would be enough to mask any apparent effect it might've had
A relevant buzzword in this context is "metamerism". But then avoid at all cost going down the rabbit hole of color spaces...
I remember some LED Chrismas tree lights. They appeared pretty bright, but barely illuminated the tree itself. In the end the tree just looked like a bunch of bright dots.
I am writing an entire book about color and light and zou are the first Artist on CZcams actually learned something from since my Masters Degree about 9 years ago...
I really liked how you used scientific facts to make your add on, and I’m really great full that you have a free version! I’m currently a student so I Can really use these type of things!
Thank you, glad it was helpful!
This is mind blowing... A lot of this stuff needs to be integrated into blender as standard especially the default scene.
Thank you!! This lighting stuff always drives me nuts and I've never been able to figure out what measurements Blender's lights are in.
Here's to hoping this addon will eventually get integrated into the main Blender build, but until then, I'll go grab your addon.
Blender’s source code at intern/cycles/util/util_ies.cpp defines a conversion factor between IES lights and Cycles lighting intensities, which might be useful.
Thanks for this video! I was beginning to learn this as well during ACES research and so with real world scale scene I'm not afraid to even crank my sun and sky to 400 and 30 and use exposure to bring down. Makes a huge difference in light bounce
I love the Photographer addon. It’s super useful.
I’ll definitely be getting stuck into some of these lighting setups.
This is a top-tier CZcams video aside from the real information and totally useful design concepts. Great presenter too, exceptional really. Really solid, good job. And well lit :)
I found this addon just this morning( Oct 3 2022)while surfing around Blendermarket. I saw this video (very nice information, btw) and I bought it immediately.
I built some cool light textures using the node setup you provided in this video, but the fact that you’ve organized so many lights and settings overwhelmed me. I had to have the lot.
WWoooww like a short documentary about light. Thank you 👍👍👍👍👍
What a well researched video, proper content!
Very helpful resource even for more seasoned lighting artists, thank you!
This was amazingly informative! I'll probably rewatch a couple times. Very well done!
You absolutely rock. I loved the technical depth in your content. Thank you for the plugin and keep rocking.
Thanks mate! Will do 🤘
I’m definitely gonna download that ! Thank u so much helped me understand lighting more
I'm looking forward to your digital light course. Thanks for the add-ons.
Very interesting video and plugin! Coming from a photography background, having some explanation of how Blender manages the power of the light is very useful! And it's great that this is matching with the awesome Photographer plugin that we're already using with great satisfaction!
I like it when people are technical.
my dude, both your stuff and you are absolutely awesome. Thank you
Dude! This was wonderful. Thank you!
Such a beautiful addon! i always knew that the blender default lights were wack, and have rarely seen tutorials on using nodes for lights. Lighting is where my scenes always fail! So I am really excited to give this a try.
This video is exceptional. Thank you so much for posting this!
Thank you, glad it was helpful!
Thank you, this vid was so helpful, lightening is actually so important. Definitely gonna download it.
Glad it was helpful!
Good add-ons.Thank you!
So many pieces of knowledge and information shared here, very impressive and very useful... thank you very much
linked sky texture alone is kind of a big deal. Thanks for doing that! I'd always wished that was something Blender had as a default feature
Dude you’re a genius. Love your enthusiasm and drive here
Wow! This is amazing. Great work! Can't wait to try the plugin out and looking forward to the course. I'd been having a hard time figuring out what the lighting values should be even when I'd been hot on making sure my units match.
Thanks Stuart, glad it helped! -JL
Man that's incredibly cool, I reeeeaaally wanted an add-on like this one
Thank you so much for the video. I can't wait to put your advice is into practice
I knew about the real world factors but I didn't know how to input them into Blender. Thanks.
You are a real light BLENDER Guru!
Brilliant! ...literally and figuratively...Thank you!
Wow very good tutorial! Thank you
thank you for this video! based on this advice i went to me eevee settings, changed exposure to -9, gamma to 1.2, and set my main sun light to 500 strength. it works amazing.
if i want the "overbrightness" look, i can still increase my light to 1000, on the other hand if i want smooth, dark looks i can set it to about 100 or 200. it works amazingly, thank you!!!
Thank you for this wonderful and very informative video.
Really cool stuff!
Finally some sense! Thank you!!!
Extremely valuable informations. Thanks a lot.
Wow, this is very impressive. Great video, great work. Keep it up!
Great job !!
as someone who struggles a lot with lightning and coloring, this will help quite a bit.
This is brilliant. Thank you.
Thanks mate very useful
you've made it great. Thanks a lot
One day your hair will fill the whole shot, and that's great!
😂😂😂
😂 just what I had in mind
He IS Kenny CG!
He is actually bald and the hair is rendered in Cycles.
His hair is nice. nothing extraordinary haha
Very very useful stuff. Thank you !!!
Thank you! so useful and full of value.
Awesome video.. Thanks mate!
Always a very good teacher this guy- big thanks!!!
very *enlightening* video! :D
Nice tutorial!!
Brilliant Tutorial
I've just purchased this, it's a fantastic plugin! Thanks.
Holy crap. Fantastic!
Get the full Extra Lights addon with 60+ presets on the Blender Market 👉 blendermarket.com/products/extra-lights
You can also find it with the 20 basic presets on GitHub: github.com/jlampel/extra_lights
Also check out the Photographer addon! gumroad.com/chafouin#FWQf
You are a true scholar sir. and thanks for the add-ons
Thank you immensely!
thanks for the good work :)
7:42 Yup, the intensity of solar radiation at the surface of the Earth, in fine weather, is a kilowatt per square metre. That’s why people get so excited about solar cells.
But it’s worth noting that’s total energy, not just visible light.
This is really a A++++ content
i undertand the sumarry of this - but not all the technical details - SALUTE TO YOU MAN - been waiting for this kind of idea
This video proved once and for all that you have to be a genius in order to work in 3D
Thank you. +Extra Cool Points for Peep Show clip :)
You are a good man. Thank you.
wow, I'm getting those!
12:23 Also, part of the shenanigans with studio lighting could be to simulate non-inverse-square intensity falloffs. Blender has alternative falloffs available as an extra built-in node type.
excellent video!
I like how you literally said "blip" and then bleeped it out instead of swearing :D
Great vid Johnathan! I'll be getting the addon
Thank you, glad you found it useful!
Thanks a lot 👍
Good job. Since you used photos as reference, it might be a good idea to talk about the difference between cameras and our human eyes.
Looking Forward to use this with ACES color management!
Jonathan from CG Cookie: *Precisely Describing Light*
Bob from Despicable Me: "IlluminAtion, IlluminAAtion, IlluminAAAtion...."
Much thanks to you.
Very useful
Sold. Great work mate
Thank you!
Me:*Sees the sun based lightning*
*c4d octane flashback noises*
Came for the info, got an education instead. Love it!
Heck dude, this is great work, thanks! I wonder if there's any chance of Blender including any of this as standard, at least more realistic defaults and the option to use lumens as units
7:13 Fluorescent lights are not black bodies, though. The mercury vapour ionizes, emits UV, which hits the fluorescent coating on the bulb and is re-emitted as visible light.
I haven't watched Peep Show since it went off the air, and I started re-watching it yesterday. Now this. Kind of spooky!
👻👻
Got both this one and the photographer) I should've gotten the photographer addon ages ago, been doing photography for a while now and it would probably make it easier working with cameras in blender now :D looking forward to checking this out. I actually wanted to pickup the lighting addon cause I'm working on a scene now and default lights just don't look right to me. I'm a noob though, so I dunno if it's just my hands, but i'll try to fix it with Extra Lights)
3:04 That washed-out effect is a common hazard of what you might call “naked emission shaders”. That is, objects with emission shaders in their materials that are directly visible to the camera. I can think of two ways to avoid the problem:
1) Cheat. Use a Light Path node to adjust the emission strength, keeping it low for camera rays and high for other rays.
2) Use a translucent shader for the visible lamp structure material, and hide the actual light emitter behind or inside it. This way you can preserve a lot of detail (bump map etc) in the appearance of the “lamp” object, even with the light set quite bright.
JISUSCRAIST!!! Jonathan, I just can´t thank you enough for your amazing Add on , it is not only deliciously intuitive but also correct, congrats.....
This is probably the highest production value Blender video I've ever watched.
Top notch.
thanks
What a legend
Next: hair tutorial
Too slow, already did it blendermarket.com/products/creating-hair-cards-for-realtime-characters
This is awesome, please some one make this blender defaults
As a perfectionist who is always distracting himself by wanting to add as much realism as possible, this is awesome! I don't get to work a lot with blender, unfortunately, but this makes me really want to dig around and try stuff and huge overblown projects again... :D
This video is lit
This stuff is good to regardless of which software you use
Just yesterday I opened some Blender files from 2013 that I had made for LuxCoreRender and was wondering how to convert the lights for Eevee or Cycles. This should be useful.
Glad this could help!
Please what theme of blender is that, I love it!
Minimal Dark!
That hair is the bomb!