I need an ActionScript 3 library that renders randomized splines with a set amount of loops in the spline, and while I'm Googling, I was hoping someone could recommend some library that I could perhaps download for this purpose.
Thanks in advance!
You can have a look at Degrafa, plenty of splines there. They were implemented by Jim Armstrong, it's worth checking out his site. Loads of explanations for Cardinal Splines, Catmull-Rom Splines, Hermite Curves, etc.
Depends what exactly you're trying to achieve. I'd say have look on Wikipedia at different types of curves, find the one that best suits your needs, then google.
HTH
Related
I need some help with rendering a NURBS surface in webGL.
Some days ago our professor assigned us to draw with NURBS a flag and to animate it.
We have to use webGL (and cannot trhee.js...).
I have no idea on how to proceed (even though I know the theory about NURBS and tessellation more or less).
Any hint?
Disclaimer: I'm not asking for a solution. It's against the rules and I want to get it myself. I just need to be pointed on the right direction.
Thanks in advance
Just because you can't use three.js doesn't mean you can't look at it to figure out how it works! This example renders NURBS and you can view the source code. (Hint: It uses THREE.NURBSSurface, THREE.NURBSUtils, etc... which is then plugged into a ParametricBufferGeometry)
As for the WebGL part, if you're familiar with OpenGL, it's a lot of the same stuff just cut back a bit on features. You need to make a canvas with a context WebGL, generate all your data on the CPU (definitions of the surface, tessellation, etc), and then pass all the vertex and index data to the GPU rendering it all with a shader.
I would suggest you to start with following two lectures:
Drawing Bézier Curves
Drawing Lines is Hard
and finally, use this WebGL example as starting point for your assignement:
Resolution independent rendering of Bezier curves in WebGL
Good luck and happy coding! If you achieve something good, please let us know!
I need a bit of counseling. I´m trying to reproduce one of M.C. Escher´s models in Actionscript, but I´m not entirely sure about where to begin. Ideally, I´d want to make something from his Circle Limit series look somewhat like this: http://vimeo.com/4154382
Could anyone provide any pointers as in what approach should I take? I am not an expert coder, so anything would help.
Thanks in advance,
Garfeel M.D.
The different copies of a hyperbolic transformation are related to one another via Möbius transformations which leave the circle fixed. You can represent them as transformations
(a+bi)z + (c+di)
z |-> ----------------
(c-di)z + (a-bi)
You might want to represent the switch from circle to half plane as a Möbius transformation as well, to avoid numeric issues with simple zooming.
I have tools available to make hyperbolic ornaments from Escher ornaments, and zoom into them in real time. But Escher isn't public domain yet, and in my experience the Escher foundation is less than enthusiastic in granting permission for derived works. So if you get ther OK, or decide on some other artist (possibly starting from a Euclidean ornament), feel free to contact me by e-mail to discuss this further.
I recently was a jury member foir an ornament competition where some submissions were hyperbolized from Euclidean drawings. Gaining permissions for those would likely be easier than from the Escher foundation.
I'm a beginner in programming world, never touch any programming language before. But last 3 days I decide to try make a flash game, I looked some tutorial about AS3, try it, yes I understand a little bit. But I'm still confused about this:
How do I know or to decide what codes I write first, what next? example: I want to add a hero, then a enemy, then a tiles, then a background, event listener.
Is it okay if I write code randomly, example: first I add enemy, then add tiles, add background, then add hero, etc?
What is the best way to completely learn all AS3 codes, especially about flash game dev?
I'm now in frustration mode, so I decide to learn from you all who have mastered AS3.
Check out this guide by Michael James Williams. I was in the same situation as you, and that guide helped me a lot. It goes through a lot of the basics and does a good job of explaining each step.
To answer some of your questions, the order in which you code stuff doesn't matter too much. You can always go back and adjust your old code, and you'll definitely end up doing that at some point.
For learning AS3 syntax, just look through some examples and tutorials, and don't be afraid to read the official AS3 docs. They might be intimidating at first, but once you start learning some of the terminology, they're very helpful.
you can try some video tutorials like these
http://www.lynda.com/ActionScript-tutorials/AS3-language-fundamentals/123492/129625-4.html
http://www.lynda.com/Flash-tutorials/Building-Flash-Games-Starling/98951-2.html?srchtrk=index:1%0Alinktypeid:2%0Aq:flash%2Bgames%0Apage:1%0As:relevance%0Asa:true%0Aproducttypeid:2
If you're frustrated NOW, are you sure that you're ready to invest a couple of YEARS in becoming half-good with Actionscript? You'll have to like learning from your mistakes (an excellent way to learn, actually), because you will make thousands of them and they will cost you thousands of hours!
Do NOT write 'randomly' unless you want to greatly lengthen your time to mastery. Everything you do should have a purpose. I would start (if I were starting again) by giving myself a series of the smallest challenges: make an object appear; make it disappear; make it appear in one second from now; make it appear when I tap a key or click my mouse; make it move across the screen; make it move back; make it follow my mouse... etc.
There are many hundreds of basic programmatic elements like these that will add to your growing grasp of logic, data-structures and language. There are usually many ways to accomplish the same task -- learn and practice all of them.
Luckily, the Internet is full of good tutorials and references to Actionscript, and some decent forums like this one where you can get help.
I know this is king of old but someone might still find this useful.
I think that if you are serious about game development and also want to learn some techniques that are independent of the platform (Flash/AS3 in this case) you should use a framework.
For Flash the best game framework is the Starling along with Feather for UI.
They run on Stage3D which means that run on the GPU not the CPU which make them very fast.
With Starling you can also create mobile games that run in AIR so I think it really is something to consider.
On hsharma.com you can find a free video tutorial that goes through everything you need to know to get starting with game development so it should answer the question on how to create enemies, backgrounds, etc.
Hope this helps someone.
Does anyone know where I could find a nice tutorial/guide/info on making radial skills bars like the one shown in this website?
After some further investigation of the source on the page I found it's made with raphael.js.
Yes look at the polar clock it's really simple. It's not a tutorial though.
I would suggest http://anthonyterrien.com/knob/ as a good starting point
Raphaël.js (a fantastic vector image library) is used for that effect.
If you want a more simple and easy to implement (but not as flashy) solution, you can also check out jQuery Knob.
Since you are asking for tutorials or how-tos, you should probably go with the latter if possible, since Raphael is a bit more advanced (and much more powerful). However Raphael does have some tutorials available if you google around a bit.
Does anyone know of a good library for making statistical graphs, such as histograms and box plots for as3. I've been looking but so far I haven't found anything really useful.
You are looking for flare:
http://flare.prefuse.org/