Healthbars, SDFs & Lighting • Shaders for Game Devs [Part 2]
Переглядів 203,609
День томуwhere we take a look at creating the healthbar from the assignment, and learn about SDFs and lighting!
If you are enjoying this series, please consider supporting me on Patreon!
🧡 / acegikmo
00:00:00 - Healthbar assignment 1a
00:25:09 - Healthbar assignment 1b
00:30:20 - Healthbar assignment 1c
00:40:20 - Questions
00:42:34 - Healthbar assignment 1d
00:56:38 - Questions (during break)
01:01:03 - Healthbar assignment 1e
01:18:57 - Healthbar rounded edges
01:49:08 - Healthbar border
02:01:28 - 3D SDF raymarching showcase
02:02:50 - How SDF raymarching works
02:07:01 - Questions
02:08:29 - Lighting
02:28:48 - Questions
02:12:35 - Diffuse light (Lambert)
02:32:10 - Specular light (Phong)
02:49:10 - Questions during break
02:50:32 - Specular light (Blinn-Phong)
02:58:16 - Gloss remapping
03:02:14 - Compositing (putting it all together)
03:07:31 - PBR & BRDFs
03:11:28 - Energy conservation
03:18:12 - Questions
03:21:53 - Forward vs deferred rendering
03:24:11 - Fresnel glow effect
03:29:00 - Assignment 2
Project Download & Assignments: docs.google.com/document/d/1h...
Originally streamed as a course for students at futuregames.se/, who were super kind to let me both stream this live as well as upload it here! so massive thanks to the people at FutureGames!!
💖 Patreon ❱ / acegikmo
🐦 Twitter ❱ / freyaholmer
📺 Twitch ❱ / acegikmo
💬 Discord ❱ / discord
🌸 Instagram ❱ / freya_holmer
✫ Video Production by Higher Vision:
➥ / highervision1
➤ Edited by Stelly: / stelly47050876
@rayurebob3724 3 роки тому
it's mindblowing to have access to this kind of ressources for free. Thank you !
@illiammacdougall6379 2 роки тому
8b
@elin4364 3 роки тому
Really appreciate you uploading these videos here on youtube too, they're fantastic!
@kelna2 3 роки тому
This is like a full semester of college shader programming in two videos. Thank you so much!
@ismaelomaribanez 3 роки тому
Great class Freya. Thanks for all your time and effort. Please do continue with this series! :)
@zeescorpio2441 9 місяців тому
Your content is like a goldmine for me currently watching and practicing on repeat. Shader is something i struggle with. But your way of explanation and teaching is superior to anything i have ever seen about shaders. Thank you for you invaluable content.
@ManSpidernater 2 роки тому
Thanks for making this series. It's really not obvious where people learn this stuff without having done heaps of high level mathematics
@5daydreams 3 роки тому
Huge fanboy here: The way you went through the SDF math was so god damn amazing. I wish more mathsy people taught like you :v
@bigmistqke 2 роки тому
I love how elegant lambertian light is. Just a line of code.
@sufianahmad7337 3 роки тому
Thanks for sharing. I love your content and the way you teach these difficult concepts in a very polite and convenient way. Thanks for being here 😀👌
@oldteefgaming5517 Рік тому
The fast mouse clicks and key strokes are quite nice
@antoinefortin1386 3 роки тому
Very well orchestrated!
@dipayon3d166 3 роки тому
You are AWESOME ... All this amazing content for free !!!
@Kabra2012 2 роки тому
This is gonna be crucial knowledge to me shortly (working on a fighting game atm). Cheers from NZ!!!
@pitchblack5422 2 роки тому
How is it coming?
@maixicek Рік тому
Finally UKposts recommends interesting channel. Thank you for video!
@VioletJewel1729 2 роки тому
you're a big inspiration to me. I really appreciate you
@anshulsingh8326 3 роки тому
Just saw all your channel content. You god or what ? I feel so dumb. I know nothing. But thanks for all the free contents ❤️.
@victornoagbodji 3 роки тому
😊 🙏 😊 thank you again so much for sharing!
@gnorts_mr_alien 2 роки тому
That was simply amazing.
@widekeepo9416 Рік тому
These tutorials are superb!
@JTPieterse 2 роки тому
Awesome information, thanks Freya.
@JustAnotherGamer1005 Рік тому
Love how you go in-depth and step by step into it. Makes me miss programming, although I've never had the opportunity to do game-development back in the day. We only learned programming for databases, hardware and networking back then. I went to college to learn how to make games, but there wasn't a gaming industry in my country and information wasn't as easy to find as today. It would've been better if I was born like 15 years later or so 😅. Although I'm more of a designer than a programmer now, there is still deep rooted love for programming, which is obvious when I watch these sort of video's. But I seem to process information not as easily as 15 years ago and I was always a visual learner, so I dig these kind of explanations. Makes it easier to understand, even with the disadvantage of English/US not being my native language (sometimes difficulties with understanding specific jargon words). I will never be a full fledge programmer, but this helps getting a better understanding when I design my game.
@arseneysorokin5004 2 роки тому
I was trying to learn this for literally years! Watching these videos I understand what is happening for the first time! You are a great teacher! Thank you very much for this.
@mjthebest7294 2 роки тому
You may also wanna check the work of Chili Tomato Noodle on this topics, with C++ godlike implementations :)
@ruslansmirnov9006 7 місяців тому
women are usually good at explaining the very basics...
@MAP233224 10 місяців тому
1:47:33 when using the clip function, the whole process of actually using the signed distance field properly becomes very opaque, because it's doing the most important step of the whole process (aka Anti-Aliasing at any resolution) without telling us how.
@renatusdev 3 роки тому
I think the lil issue on the first assignment was a good thing. It made me kinda reflect on reasons why it wouldn't work. Then I figured that maybe the first and last pixels of the texture where different; AND THEN BOOM. Fixed. So yeh. (dunno if that was the actual issue but i assumed as much). I now got that error catcher on my toolshed. anywho' round 2 les go
@trejkaz 2 роки тому
54:07 This behaviour of where the sampler takes the sample is easier to think about if you think of a smaller texture, say 2 x 2 texels. There will be 2 texels stretched across from left to right, but 0.0 is still all the way to the left and 1.0 is still all the way to the right. So no of course 1.0 wouldn't sample in the middle of the texel - in this case you'd need to sample at 0.75 to get that. For me, this became clear when I tried to implement a shader which cut the texture into multiple sprites, because when you do that, you end up with the same bleeding happening there and have to work around it in your own code by grabbing the texel size from _MainTex_TexelSize and manually clamping your values to the middle of the texel.
@sagrgywejhxcvx Місяць тому
thank you for your impact
@241lolololol 3 роки тому
Thank you for putting out these great videos! I am mostly a game logic programmer but want to get into using shaders and this is great help! I was wondering if youd go over compute shaders and how to use them in future videos?
@acegikmo 3 роки тому
no plans for that yet!
@elmandibulas1605 Рік тому
awesome!!! thank you very much for sharing and iluminate our brains!!
@neozoid7009 Рік тому
You are a Great Teacher Freya, Your videos are Awesome 😊💖💖👍
@ZedPoirier 3 роки тому
You floored me at 13:01, wrinting in yellow! Great lessons!!!
@arthuroverissimo3165 7 місяців тому
Amazing content! I've learned a lot so far, went from scared about shaders and rendering to pretty confortable to write custom and crazy shaders, thanks a lot Freya!! One thing that I've got missing is that my shader is not receiving shadows from other objects in the scene, am I missing something?
@aloea Рік тому
I encountered a problem in the Phone Lighting code, that _WorldSpaceLightPos0 is always “0” and cannot work. Upon checking, I found that this is because I previously set the [Skybox Material] in the Environment settings of the scene to "None". Can someone explain the reason for this problem or provide some relevant information? Thank you !
@marwanahmed5377 Рік тому
I had coloring problem, but I solved it. Regardless of much details, if white color becomes red or something like that, you will have to keep "fixed4 frag" in the fragment function. Thank you Freya for the very informative videos...
@alvaroalda3112 Рік тому
Hi! How could you implement indirect lighting to avoid dark spots in your mesh? When light hits the mesh the opossite normals tells the fragment shaders to be dark, in URP when you introduce a mesh thats not the case so how can I avoid the dark spots in the mesh, which are the calculations?
@Aloisio_PN 2 роки тому
Freya, thank you so much for sharing your knowledge. Big hug from Brazil! Please make a video about Toon, Outlines and Edge Detections shaders. Merry Christmas and happy new year!
@Aloisio_PN 2 роки тому
Freya, thank you again! How can we do to cast shadows in shaders? It would be amazing to learn this with you! 😊
@saeedbarari2207 2 роки тому
this is AWESOME!!!! free? That's even MORE AWESOME! all the best wishes !!
@SanyaBane 2 роки тому
As far as I understand, in Unity, UI is usually located inside Canvas. How can we apply this "HealthBar" shader inside the Canvas?
@Enoc63 2 роки тому
I fell asleep and woke up to this, not even mad 🤔
@user-on6dr9mh5t Рік тому
that best what I saw about hlsl👍
@ukidabek 2 роки тому
How to align text in rider to center of the screen? I will be grateful if you can tell me. I can't find this setting. :C
@moonoovie Рік тому
I arrived at this series from The Coding Train, it must've been painful for you to be in that chat! And thank Universe you were, because now I'm here and learning a metric shit tonne more about shaders than I ever expected to! I've seen references to them in some old Java software I used to use called Structure Synth, that I think was able to output some shader-related data for rendering in what I used at the time called Sunflow. I'm ultra curious if I can revisit some of those old scenes and manipulate the shaders now!
@toridomiart7092 2 роки тому
Event though I intend to stick with nodes (mostly bc I mainly work in blender & unreal) your videos are so well explained and help me better understand the underlying things and maths going on with what I'm doing! I also love to put these two parts on repeat while I'm modeling - your voice and cadence is really pleasant to listen to, and I sponge up more info all the time 🥰️
@Eva-ez1ks 2 роки тому
The 2D capsule-like shape is called a stadium!
@372leonard 3 роки тому
How do I upvote twice?
@elronnd_9515 Рік тому
31:31 wouldn't it be better to do this in the fragment shader? I've heard discard is very expensive on some hardware.
@apkiller10 2 роки тому
with android compression tool, always end up in gimp making uniform textures in texal blocks to simulate lots of detail material texture2d sampler for something like opengl es2.0 shader..
@rosyfu5845 2 роки тому
Freya you are awesome!
@acegikmo 2 роки тому
thank you
@doven8500 2 роки тому
(ctrl + alt + L) can format shader code in Rider
@josecoles4126 2 роки тому
amazing video. I have been able to follow along fine up until the lighting part. The objects are fully black with no light reflecting off the objects at all. i even tried downloading your sample scene and it is doing the same. is it to do with my unity settings? cheers
@josecoles4126 2 роки тому
i upgraded materials to hdrp and it seemed to fix it lol
@qrthack3233 Рік тому
What tablet are you using for drawing? Please asnwer me
@giuseppegioi9659 3 місяці тому
Freya you don't know how thankful I am for these videos. Is there any chance you could make one video also explaining how to implement PBR lighting? instead of the basic phong/blinn-phong?
@Gregu91 Рік тому
Great video. I have a question abaut shader and metarials. Is there any way to change shader preporties in only one object? For example I have 10 enemies, all of them use the same shader to health bar, and one of them have less health and change health preporties (in shader) only for this enemy. I know I can crate manualy 10 materials with this shader or crate it from code, but it's not very usefull...
@acegikmo Рік тому
you'll want to use these! docs.unity3d.com/ScriptReference/MaterialPropertyBlock.html
@Gregu91 Рік тому
@@acegikmo Yeah, that's works how I want, thanks :)
@simonfarre4907 2 роки тому
Vec4 is GLSL for float4.
@r.macedo3612 5 місяців тому
18:00 Just a "bit-brushing" float _Health; static const float2 _Color = float2(1-_Health,_Health);
@LisandroLorea 2 роки тому
3:11:05 it actually looks like the top half of Mokona from Magic Knight Rayearth looking to the left
@kzikzikzi 9 місяців тому
I could go through all tutorials on how to do wild stuff and I would not understand a fraction of the stuff I learnt from the health bar 🥰
@aomsoma 4 місяці тому
Watching this at 2:07 am
@sunmark8994 Рік тому
Did exactly the same thing shown in the lighting section, the light vector just wouldn't change when I roatate the directional light, and when I output the diffuse light, the shadow just stick where it is no matter how I move thelight.
@sunmark8994 Рік тому
Found the reason, need to add a tag "LightMode" = "ForwardBase"
@zalewskisz Рік тому
Hi, can anyone quote or link the reference in 1:30:00 please, I can't figure it out by ear. Thanks for amazing videos!
@vtoz1830 Рік тому
Inigo Quilez, subtitles went Inigo Keyless .
@swalscha 3 роки тому
@Freya Holmér Is it possible to use shader to have stylised effects on a text in a dialog box? If it is, did you ever try this before and have some piece of advice? Thank you for sharing this awesome serie on shaders!
@acegikmo 3 роки тому
definitely possible, but the difficulty of this depends on how the text is rendered and what effects you want. ideally you'd alter the shader rendering the text, and do the thing you want to do in there
@swalscha 3 роки тому
@@acegikmo thank you, I'll give it a try when I'll be at the dialog system to see how balance the complexity between all I want. Roughly, I was thinking of three types of effect on specific words : - subtile glowing effect to emphasize ; - appearance of the word with a displacement effect on the characters ; - appearance of the word with a linear raise of the alpha. Clearly, I'll need to create a dialog system that let me alter the shader rendering as you said.
@TheHerpthatderp 10 місяців тому
God I love your work. I wish I had an income right now just so I could show you some support.
@zalxder 2 роки тому
3:24:18 I put 600± hours into overwatch, in match time, since I began playing a year ago
@fwdflashwebdesign 3 місяці тому
You are so beautiful :) and this reflects in your teaching!
@chilpox3671 3 роки тому
is this original version of video or pirated? who is original author?
@acegikmo 3 роки тому
this is my video, did you find it elsewhere?
@chilpox3671 3 роки тому
@@acegikmo i have watched all the 3 videos on another website(not youtube) it was also free but i dont remember the name. It came up when i searched unity hlsl tutorials
@GameDevNerd 2 роки тому
Freya has the name and intellect of one of my revered goddesses ... I love this girl and her videos. They don't make girls like this where I'm from (I'm from a really bad place lol). Liked and subscribed!
@squarerootof2 2 роки тому
Lmfao, you sure about that?
@GameDevNerd 2 роки тому
@@squarerootof2 lmao I get it, but don't mess with her ... she's an amazing resource for shader knowledge and helps us a lot
@squarerootof2 2 роки тому
@@GameDevNerd No worries :)
@Alperic27 2 роки тому
🙏🏻
@xanderbeaky4546 Рік тому
lol i totally just did the rounded corners with a texture 😬
@anl5460 2 роки тому
More shader videos pweeeasee
@celtavanyname5400 2 роки тому
When I make a mistake my stressbar is rising. Thank you.
@williamluong7743 2 роки тому
is that an astrophotography mount in the background
@beaumanVienna 2 роки тому
3:04:03 ? if the surface turns into a mirror...
@nfcopier1 Рік тому
Watching this a year later and wonder if she ever set up a shader template...
@acegikmo Рік тому
not yet
@yanlongyang323 Місяць тому
🍵
@NerukESP 2 роки тому
ok let me sub XD
@hardway777 10 місяців тому
0:13 😻
@user-sh7ft3cz8x 3 роки тому
3:03:00
@ryuk-gj9uz 3 місяці тому
1:53:23
@chengqili3294 2 роки тому
For anyone receiving zero for _WorldSpaceLightPos0, the solution is do not use URP.
@ademarneto4487 3 роки тому
Kanye West twitter avatar on the thumbnail
@pixppgame 2 роки тому
In Chinese，你太牛逼了，佩服佩服
@dookcurruff9047 2 роки тому
ur so beautiful queen
@vedicfriend 19 днів тому
why do u have such long videos
@KiWiKiWiJaKe 2 місяці тому
My UKposts auto played this and I woke up in the middle of a nightmare hearing “ahhm”. I hope i never have to hear you ever again.
@infegfx Рік тому
It is very easy to understand how that graphical elements and shapes are works but that coding is wipe my mind. Is there any different way to make it without coding? And also I have to say in general, computers (PC) we are using when programmed to simulate physic, colors, or other things like visual effects in real time, they need too much calculations for that. It need too much cpu and ram. By the other computers are not made to make this things at first because that smart genius people who makes first computers are made it for their required and necessary. That chips (CPU)'s are using binary numbers and it is very hard way to make it. They have to make different CPU works like Analog at that time computers can works too much faster for some other things as we can see in this video. It is very hard to have that type of CPU because there are no genius left in this planet to make a new ideas to create.
@robojackmu 3 роки тому
the assignments are too easy, i dont need to do anything, and i dont even know what the content of assignments is hahahahahahahhahahahahahah
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