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I now have a full stack of javidx9 Interesting Programming videos (64).

Im at the point where camera controls are intruduced at no matter what i normalize, my model looks like a crumpled up sphere. Im truly stuck

mouses and sheeps have different radiuses

Neat! I remember being fascinated with spirographs as a kid

You could use int16, move the range to between -17999 to 18000. You don't need degrees larger than 180.00, unless its for display, in which case you can just add 36000 if its negative. Or just use power of 2 numbers to represent 90 degree angles, and take advantage of numbers that already wrap. 16 bits contain 65535 values, so 65535 URots in a circle. -32,768 to +32,767 Rots. make a look up table that approximates sine and cosine and write your own atan2 for Rots and URots. only convert to degrees when rendering the number, degrees aren't actually good for math.

I love multi-dimensional arrays filled with something you want to store :D

13:45 Your moving gear is 'rotating' too fast because you didn't account for the sidereal effect. If the moving gear is exactly half the fixed gear, it rotates once per revolution (a pen at the edge traces a straight line). If it's 1/3rd, it rotates twice per revolution, etc.

The world isn't ready still

Four bits are called a nibble!

Thanks for this. I have always used recursive descent when playing with parsing. I really enjoyed learning the shunting yard algorithm. I implemented this in Python using a regex tokenizer and output RiscV assembly instead on interpreting. So, where you made an interpreter with a compiler, I made a compiler with an interpreter.

Nice video! This reminds me of the flight patterns used by enemies in Galaga

Grow your beard please

Bro can you or someone else around here please give the link the c++ networking series part 5 I really like that one and your other videos as well in part 4 you said that there will be a part 5 but I can't find it in which u will show shooting players, I know it 3 yrs since now but plz

Such a fun project, I'll have to implement a Spirograph builder in a future project myself. :)

There is a well known method called FEM (Finite Element Method) which calculates stresses at each node (vertices) of triangles. The triangles cover the surface of a building (architectural) drawing. It’s used for the structural design of the buildings.

*Summary* * *[**0:00**] Inspiration:* Inspired by a nostalgic spirograph toy encountered on holiday. * *[**2:22**] Challenge:* Wanted to code a spirograph simulation but only had a Chromebook. * *[**2:26**] Solution:* Used "PGE Tinker" (pixel game engine tinker) created by Moros1138, a browser-based C++ coding environment for Pixel Game Engine projects. * *[**4:24**] Math Refresher:* Briefly reviewed the math behind drawing circles with sine & cosine functions. * *[**5:25**] Spirograph Simulation:* * [5:25] Visualized fixed and moving gears with calculated radii and rotation. * [12:31] Implemented gear ratio to accurately depict gear interactions. * [13:11] Drew the spirograph path by tracking a penpoint on the moving gear. * *[**17:58**] Enhancements:* * [17:58] Used decals for smoother, persistent gear visuals. * [18:08] Incorporated "Quick Gooey" extension for real-time control of gear sizes and pen offset. * *[**20:47**] Result:* Created a visually appealing and interactive spirograph application entirely within a browser using PGE Tinker. * *[**21:10**] Call to Action:* Encourages viewers to explore PGE Tinker, share their creations, and support Moros1138. i used gemini 1.5 pro to summarize the transcript

Is that a metal box it comes in?!

Great stuff as always. 👍

How do you handle terminal distortion, i.e one pixel in terminal being rectangle and not square ?

I smiled when I’ve heard Conwy and not Conway. Nice job, sir ;)

Very useful! Appreciate it!

Looks great, you should checkout a 'Complex Fourier series'. It provides the math to extend your Spirographs to include more circles, radius, and the spin (delta time) of individual circles. With that techinque you can actually draw pictures in an interesting way.

Please make a second channel that's just you running this program to create pretty spirographs

Omg cant believe you went to Conwy on holiday, I live just down the road, what a small world, were you there for the pirate weekend?

That would honestly make a killer screen saver.

Nice graph, but the pen motion looks off and the code is indeed slightly mistaken. Around 15:00 the curve briefly shows retrograde motion when the pen is close to the ring gear when it obviously shouldn't. The error is in the ratio. The circumferences ratio is used, but that is not the ratio of angular velocities. That should equal ratio = Rfixed / Rmoving - 1 because the moving wheel is also making one full rotation inside the fixed wheel. This is easy to see when for instance Rfixed = ½Rmoving, then the inner wheel makes one anticlockwise rotation, not two, when it circles around once clockwise. Or, when Rmoving = Rfixed, then the moving wheel should not rotate at all, i.e. ratio=0. I invite you to try it. Otherwise pretty nevertheless!

I was indeed annoyed by you stoping the rainbow too soon.

That was a brilliant just brilliant way to show the power of PGETinker, thanks @Javidx9 . Johnnyg63

Now I want to make a spirograph

good job moros!

I check your videos time to time and find inspiration. Your projects are always so interesting olc!

If you could decrease the size of the inner circle on every iteration, I could imagine you could draw spirals.

Hi, I did that long time ago, back to 1994, in GWBasic with mechanic branch Cinematic with vectors and torsors(not tensors), very beautiful.

I wear a Casio F-91W. I love how simple they are. I am also impressed at how accurate it is. It stays within a couple of seconds from my computer clock for months. It is far more accurate than any other electronic clock I have (that isn't synced to a time source of course).

Nice shirt. I have the same one!

Amazing video! I also find spirographs quite mesmerizing. In this scenario, where we have two circles, and one rolls around the other without slipping, the `ratio` calculation has to be corrected by subtracting 1.0f from it.

The worlds smallest house appears to be a 1 x 2 Lego brick :-)

Hlw sir....Can u make a window in console without gui which will respond to user on input(I want to learn how framework make a window from scratch)....please........

Good taste in dodgy shirts 👌

That is awesome!

Awesome video, a beautifully broken down solution! Thanks for sharing this with us!

Neat! 😎

End result was very pretty. Nice video. I do question why vacations weren’t as fun at night though 😂

The math around the spirographs I could see being useful for making little special effects or other sorts of fun mezmerizing things in a game. For example, in those vampire-survivor type games where you have lots of little weapons spiraling about hitting things automatically, defining their path in this way would be quite fun to watch.

Just at the end with the last circle and the colour changing, I was reminded of the Captain Blood "Hyperspace, activated".

I see we both wear the most common wristwatch known to man

cool video!

how ya doin

you welcome back

love your videos, keep it up!! hope you had a lovely holiday