I Built a Game Engine from Scratch in C++ (Here's What I Learned)
I crashed my GPU 47 times before I saw my first triangle on screen.
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Wow! I love when someone research and learn how things works deeply and even better, starts creating something from scratch. You are so talented, go ahead!
Regards!
Thank you — that means a lot. I enjoy digging into how things work and building from the ground up; your encouragement really helps. I’ll keep posting progress updates here.
P.s. That makes me feel worth on my hair loss 😉
We loved your post so we shared it on social.
Keep up the great work!
Thanks you very much! Your kind words means a lot to me!😀🥰
Great journey and conclusion! Nothing beats doing things on Your own. I could feel that boost by reading Your article.
I would add one more reason why anybody might want to do their own engine: You are free to experiment with non-mainstream techniques. Like you mentioned voxels, there are interesting Voxel Ray Traversal algorithms to explore, moreover You could also use implicit surfaces, constructive solid geometry and many options for light calculation (yes, even more interesting stuff than ray tracing).
If You like optimizing stuff: a "postcard sized path tracer" might be an interesting thing to decode and optimize, perhaps even turn it into a real game engine with unique way how to define geometry and lighting.
Thanks — excellent suggestions and much appreciated!
I totally agree that doing your own engine opens the door to experimental geometry and lighting approaches (voxel grids, implicit surfaces / raymarching, CSG, bespoke light transport). I plan to explore a few of those directions:
Thanks again for these concrete ideas — they’re exactly the kind of directions I want to try. If you have any favorite papers or toy projects (small repos or demos), I’d love to see them.
That's really neat!! Kudos to you!
Thank you! That means a lot to me.
Impressive
Very nice! I remember back in mid 2000's I created a breakout game in cpp using SDL libraries. The process teach me a lot! Great work!!!!
Thank you! Glad that you went through the process and come out on top😁. That is why I am advocating building a game engine for everyone who is interested in graphics programing.
Did you notice your collision works better than unity? 😀
Thanks for the complement! But Unity definitely does better job than solo dev like me 😂
thanks for sharing, it reminded my beginnings with C++ :)
Cool 😎 you encouraged me to learn it
Good job!
Thanks you! Appreciate you kind words!
I can't write code, but I used Seaverse and finished this game in three minutes. Modern technology is truly remarkable.
Absolutely — modern tools are impressive. This project was mainly about learning how things work under the hood.
Good job, creating projects and experimenting is an excellent way to improve as a programmer 👍🏼
Wow, it reminds me of the feeling of playing games when I was a kid.
Thanks! That’s exactly the feeling I’m aiming for — that sense of curiosity and joy from playing games as a kid.