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I just tried to code a 3d engine using webgl and JavaScript in one day (24 hours), completely from scratch. It's been a lonnngggg time since I did any serious graphics work as a programmer, and even longer since I touched opengl. This was a bit of a jump-into-the-deep-end project to see if I could crank out a deferred lighting demo in a short time using webgl. In the video I cover all parts of the project, starting with the initial plan, a super general overview on how 3d engines are often structured, and then stepping through the development of the code. By the end you should understand the basics of how a light prepass renderer works and how to implement one using pure webgl.
What was covered:
* 3D Engine Design Considerations
* Materials/Shaders/Drawables/Cameras
* Vertex/Fragment shader implementations
* Framebuffer Objects
* Floating point textures
* Other buzzwords
Full source code for the project is available, I mean it's crap but knock yourself out.
Source: https://github.com/simondevyoutube/WebGL_1Day_3DEngine
There's been a bunch of similar challenges, mostly around making a game in a short time so I thought I'd give it a try but with my own spin. Here are some other videos that helped inspire.
Sam Hogan - I Made Minecraft in 24 Hours
https://youtu.be/Nj8gt_92c-M
Dani - Making a Game in ONE Day (12 Hours)
https://youtu.be/mFNrOGPVls0
Fat Dino - I Made a Racing Game in 3 DAYS
https://youtu.be/tt46z0IbpP0
Code Monkey - I made an FPS in 5 days! (Unity Microgame)
https://youtu.be/kY1Q2GraWiw
Jabrils - Making A Game in 48 Hours!
https://youtu.be/SIzY8sR1Ql0
Tren Black - I Made Wii Tennis in 24 Hours
https://youtu.be/PgqOb1yFn7M
Brackeys - MAKING A GAME IN 10 MINUTES
https://youtu.be/p8MzsDBI5EI
BlackThornProd - I MADE A GAME IN 1 WEEK WITH UNITY
https://youtu.be/GTFYmzYjHzg