Polarized Iridescent Headlight Glass | Blender 2.9

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[@DamianMathew]

@Tom Kam I hope you don't mind me pinning your comment - sadly I couldn't pin your comment directly because its in the 'reply' section. @Tom Kam Great tut! I believe this iridescence is caused by a UV protection coating applied to the plastic (plastic will not filter UV light). When you see headlight lenses that have gone cloudy, it's the coating that has degraded, not the plastic. If you sand the headlight lens down to a very fine 2000 grit, then polish with a compound, the headlight will look new again, but you'll need to re-apply the UV coating. Since the coating is added to filter light, it makes sense that it would also create artifacts: eyeglasses with Anti-reflection coatings have a weird green artifact to them, for example. I'm betting the un-coated lens would not have the iridescence. I also don't think it could be internal stresses: the headlight covers are plastic, not glass. Glass might behave this way because after being molten it cools hard, whereas the plastic has a much lower melting point and even when cool, retains some flexibility. The plastic bonds of plastic don't form a rigid lattice the way glass does. Check out Smarter Every Day on YT and look for the vid on the physics of the Prince Rupert's Drop. Cheers!

[@mihalydozsa2254]

It is because the head light cover is plastic to save weigth. It is the called birefringence and what you can see the are the stress lines in the material.

[@NaturalArtFreak]

Great tut, definitely gonna use that for sure.

[@DamianMathew]

The Natural Art Freak glad you liked it! :D

[@PixellateYT]

I can't find these types of tutorial anywhere. Brilliant tutorial

[@DamianMathew]

Awesome, great to hear!

[@sddrx6000]

Damian just keeps one upping himself in terms of actually useful tutorials

[@DamianMathew]

Siddhant Rath I try my best :D

[@The_Curious_Cat]

If I'm not mistaken that type of "rainbowy" glass is used on most cars nowadays (the good ones, of course), it's not even glass, it's a acrylic type of plastic, that rainbow effect is from the UV light protection layer that is infused into the plastic itself, it reacts like that to light. Basically it makes the plastic not go all foggy after years being used like it happens with other cars (because those that go foggy it's polycarbonate that does not have uv light filter/protection, making it a cheaper material than acrylic).

[@theCreativeSav]

At this point I just watch your videos because it's you 🙂

[@DamianMathew]

Creative Sav that’s really great to hear :D :D

[@khalatelomara]

The all about cars channel , i actually love it as an architect

[@SandroH.]

Thx for the tutorial 👍

[@HubertKnoblauch3DContentOnline]

whaaaaaaaaaat? .....it's THAT easy...great tut

[@zaentyt837]

Thanks for those tutorials really underrated, I am still having some problems with creating realising environment so a revamped tutorial from u would be helpful

[@DamianMathew]

Environments are on my list! :D

[@zaentyt837]

@@DamianMathew thx

[@hantuan107]

nice one, but i think this effect changes on camera view, so you might want to plug the noise texture into the camera/reflection slot of the texture coordinate node

[@DamianMathew]

Interesting you mention! I actually think the rainbow is static, because its really somehow in the glass. But ill check the next time I got my real polarizer with me!

[@aks3778]

Thank you so much for this, Ill use this on my car renders!!!

[@napoliporporo5393]

nice tut

[@DamianMathew]

Awesome! :D So fast!

[@sontranhoai3134]

Thank you a lot. That is my looking for

[@daggimsl9707]

great tutorial :)

[@xDaShaanx]

Another brilliant tutorial :D

[@DamianMathew]

Da Shaan X thanks!

[@breaneainn]

Thanks! I was wondering what to use glossy nodes for..

[@alperg1142]

Thanks teacher. Nice work.

[@dagimdebrework9318]

thankyou

[@RisingFox]

Dude you rock. Thanks for posting this!

[@DamianMathew]

glsumpter thanks a lot, glad you like it! :D

[@tylerkwon1157]

This is super sick!!! thanks Damian!! Can you do an interior material tutorial???

[@DamianMathew]

Yes coming !! :D

[@mwsiviero]

Just awesome

[@michaelgraphic7799]

ua tutorial is vry good....thankyou for making tutorial like+sub keep making

[@HassanSiddique777]

Its awesome and very useful tutorial ❤

[@NarekAvetisyan]

Nice, you can also easily do this in Luxcore render for Blender by simply clicking on the "Thin film coating" in the Glass shader.

[@lakshayjain4943]

I just love this channel😍

[@DamianMathew]

lakshay jain that’s awesome! :D

[@sontranhoai3134]

Thankssssssss

[@beltranperez378]

Hey Damian! Can you do a tutorial to make xenon headlights? This tutorial reminded me of the multicolor look xenon headlights have as well.

[@DamianMathew]

Yes definitely! I also want to make a video on glares and flares

[@beltranperez378]

@@DamianMathew Nice!

[@MMMM-sv1lk]

Another great tutorial yeah 😊

[@DamianMathew]

MMMM thanks! :D

[@JanWischnat]

Just what i needed at the right moment. Awesome! Thanks for sharing :)

[@HyperActive94]

amazing thank you very much Damian!

[@daryljosephg]

Thanks a lot

[@lolish777]

Good tutorial, thank you.

[@spookytofu2078]

nicee

[@matthewgiang8400]

for some reason my glass isnt transparent like urs is my nodes are exactally the same but the last mix shader is on a fac of 0.550 Can you help?

[@harikrishnan_g]

Great tutorial ♥

[@pinywood3077]

Wouldn't you be able to achieve the same thing using the base color slot of the principled BSDF and setting transmission to 1? But anyways pretty useful!

[@DamianMathew]

Yes! I am just a fan of a controllable fresnel and glossy aaand no refraction. So depends.

[@raquelgarcia1910]

I loved this texture, thank you for the tutorial!

[@CGSTUDENT15]

new sub

[@varunrss5856]

Hey Damian! thank you for sharing this tutorial it really add some points to the realism, i tried applying this into my project but for some reason its not transparent, the rainbow effect is working but its not transparent thus hiding my light source behind this. Any idea why?

[@kamarulzzariff3815]

I wonder if you can make product like clock motion design with blender...pliss make an hour tutorial...i really apperciate you as my teacher🥰

[@DamianMathew]

Kamarulzz Ariff so like a Rolex commercial for example?

[@xrx2023]

@@DamianMathew I second that!

[@kamarulzzariff3815]

​@@DamianMathew kzbin.info/www/bejne/hWLHp6mnot1prc0 Yes..please...make... i found one that on youtube but it is C4D... maybe my teacher can make it much simpler scene...Thanks in advance :)

[@bleemsquid]

It's caused during the manufacturing process, as they inject the polycarbonate with unicorn farts, causing a rainbow effect.

[@pranavs5093]

Please make a video on how to make realistic headlights and led tail lights.

[@DamianMathew]

Pranav Shukla great idea! Especially rear light.

[@Krzyh4]

Unfortunately it's not working with double sided glass (not a single plane, but geometry with thickness).

[@orionsleeve1956]

Hello, I am making the rear lights of a car, but for some reason the windshield of the car is also being changed. What to do?

[@gfxvfx213]

thanks for tutorial

[@sontranhoai3134]

Can you instruct to make dirt on the car? Thanks a lot

[@DamianMathew]

Yes dirt is coming! :D

[@sontranhoai3134]

yeah. i'm waiting for it

[@RahulMaurya-vr1fq]

ouh so that is why it looks that way.. I used to think that there's actual oil on the headlight glass 😅

[@DamianMathew]

Rahul Maurya yeah oil has a simular look! A guy in the comments said it might be a visualization of the stress in the glass. So I guess it splits the light slightly different depending on the stress level. Quite interesting. But I still don’t have a full explaining why exactly it occurres. Also why does it mostly occur on super sports cars. I don’t know. I hope I find out soon!

[@RahulMaurya-vr1fq]

@@DamianMathew Weird how only super sports cars have that effect. Anyway science time! 😆

[@reeshadmuntasir5203]

How do we model cars' interiors? Please Help.

[@HISEROD]

kzbin.info/www/bejne/mYTLm2mHd99_jKM

[@user-lu4kr3so3q]

good！！

[@dagimdebrework9318]

this is may laptop , what else can i do if i cant?

[@mrfeathers3938]

How to use octane for blender?! I’ve downloaded everything needed. I have an NVIDIA 2080 super. Drivers all up to date. I’m running the octane server then try to open up the blender version it gives you and I just get a grey screen and it says “waiting for images” and nothing happens. A lot of others have this issue. Pleaseeee help 🙏🏻 octane is literally 2x faster than cycles and much more realistic lighting

[@_JosephAllestianBeraldyTukan]

damian, can u tell me where u gest all this car models, r u make it yourself or u buy from website?

[@DamianMathew]

I work for a lot of brands in the automotive industry. This particular model is not a production ready file since often I can’t show the real parts

[@_JosephAllestianBeraldyTukan]

@@DamianMathew okay, thx for your feedback, 🙏♥️

[@vinibritoarts]

Great tutorial! I'm having a problem, depending on the angle of the camera, the shader ends up turning black. I have no idea what it might be. :c

[@nikitos626]

same problem, did you solve?

[@vinibritoarts]

@@nikitos626 didn't solve yet, but for now i just ended up making a simple glass shader without the polarized effect. I don't think Damian will answer us haha.

[@nikitos626]

@@vinibritoarts actually just solved, change IOR to 1.000, and that’s black thing disappear))

[@jaidebray2065]

How to model a car headlights

[@DamianMathew]

good idea!

[@jaidebray2065]

When are you going to post the video for headlights

[@DamianMathew]

@@jaidebray2065 not in the next mounths, check out The Natural Art Freak

[@dagimdebrework9318]

hey can i render animation with 8 gb ram and 4gb 1050ti gpu? with cycles?

[@HISEROD]

Yes, but you'll likely need more RAM for scenes with lots of data such as high poly objects and high res textures.

[@dagimdebrework9318]

@@HISEROD thank you for reply and how much should Gb of ram should i add?

[@HISEROD]

@@dagimdebrework9318 For CG, 16 GB should handle most projects just fine, with 32+ GB you will hardly ever need more unless you start using your machine for more memory hungry purposes such as video editing, data science, photoscanning, etc.

[@dagimdebrework9318]

@@HISEROD thanks that is alot to me

[@cruzefx3652]

Those cars that you use, you modeled them or did you bought them online? Just finishing binge watching your videos, amazing stuff. Btw, if you don't mind, could you critique this car model that i've mad a while ago? Thanks! www.artstation.com/artwork/orgXW The car paint was hard for me to work it out, I'm thinking in exporting into blender to try your car paint.

[@HISEROD]

Wheels look really shallow and the lighting is really basic. Try using some official Audi photos to gauge the shape of the wheels and mimic the lighting. It's kinda hard to judge the paint without a close up shot, but from what I can see it's a perfecly acceptable for a regular shot. The windows are transmitting more light than the background has to offer. Make sure that the brake calipers are in the right positions and that the brake disk material is anisotropic. Also, the headlights aren't completely true to the R8. You can get good results with polygonal modeling, but if you want to model cars the right way, Class-A surfacing is the thing to learn, but afaik any parametric modeler with the right tools will cost a pretty penny. Overall, this is a really solid render, dude.

[@cruzefx3652]

@@HISEROD Thank you for the feedback, I completely agree on the lighting, at that time I cared only about the modelling and kinda ignored the material and lighting. I had tons of problems trying to see the headlight to model, what would you do different? This is the ref I was working with: o.aolcdn.com/images/dims3/GLOB/legacy_thumbnail/800x450/format/jpg/quality/85/www.blogcdn.com/www.autoblog.com/media/2008/05/r8-led-light-cluster-450.jpg

[@HISEROD]

@@cruzefx3652 headlights are really tricky. I would suggest using as many good references as you can find in conjunction with a blueprint. Sometimes I look for videos of things that I'm trying to determine the shape of. The first thing that I noticed was that the DRL's (en.m.wikipedia.org/wiki/Daytime_running_lamp ) were all one clean strip rather than a bunch of individual lights with reflectors behind them.

[@cruzefx3652]

​@@HISEROD Yeah that LED was my hell, couldn't do it individual for some reason, don't really remember why. But thanks man, this week I managed to get the audi model from c4d to blender, so I'll try to redo the rendering, with proper materials and lighting, will def use your feedbacks!

[@HISEROD]

@@cruzefx3652 I'll be watching for it on artstation.👍

[@BYNX.o2]

How do u do this on eevee