Guys, please keep it civil, ive been trying really hard to understand things, i been reading alot, and just when it seems like it makes sense, i try to apply it for a different model or a car, it get lost again. So please id like this thread to stay open for questions and answers, and im sure alot of people will benefit from this.
I kinda feel embaressed asking for help, but i have no other choice. Ive looked for private tutors, offered money but no luck. I even put an add in the local news paper for some private lessons still no luck. So you guys are all i have. Mainly raven and hell, as they are the only people that have knowledge of alias. So please guys, im asking nicely, dont fight.
Ok so, heres the dilema i have. Building long curves, for example side of a car, or roof.
My understanding of curves is this, degree 5, contains 6 cvs. If you draw more then 6 cv's youll get spans, which isnt good. That goes for degree 3,4,5,6,7.
For main shape of the car, i think degree 5 is ideal. As you get more control, so degree 5 curves should be set as default.
Question i have, is this. for example if you have 2 curves degree 5, do they have to be connected by degree 5 curves?
When i join these curves together ( see picture ) My CV hull of the surface is really really terrible. So im thinking about adding an extra curve at the top, but im also thinking that degree 5 curves maybe not enough? Im not exactly sure. have a look at the picture and let me know please, any help or suggestion would be really appreciated guys..
Really looking forward to your tips. Kind of stuck
Guys, please keep it civil, ive been trying really hard to understand things, i been reading alot, and just when it seems like it makes sense, i try to apply it for a different model or a car, it get lost again. So please id like this thread to stay open for questions and answers, and im sure alot of people will benefit from this.
I kinda feel embaressed asking for help, but i have no other choice. Ive looked for private tutors, offered money but no luck. I even put an add in the local news paper for some private lessons still no luck. So you guys are all i have. Mainly raven and hell, as they are the only people that have knowledge of alias. So please guys, im asking nicely, dont fight.
Ok so, heres the dilema i have. Building long curves, for example side of a car, or roof.
My understanding of curves is this, degree 5, contains 6 cvs. If you draw more then 6 cv's youll get spans, which isnt good. That goes for degree 3,4,5,6,7.
For main shape of the car, i think degree 5 is ideal. As you get more control, so degree 5 curves should be set as default.
Question i have, is this. for example if you have 2 curves degree 5, do they have to be connected by degree 5 curves?
When i join these curves together ( see picture ) My CV hull of the surface is really really terrible. So im thinking about adding an extra curve at the top, but im also thinking that degree 5 curves maybe not enough? Im not exactly sure. have a look at the picture and let me know please, any help or suggestion would be really appreciated guys..
Really looking forward to your tips. Kind of stuck
well, actually NO, you don't need degree 5, a simple example would be blending 2 degree 5 straight lines, you can use a degree 1, and still have a perfect blend, other cases exist too, but not so simple.
I always start with an accurate spline cage, I made it not paying attention AT ALL to the degrees as long as it is a good cage of the car, that way it looks decent. After you build that, build your light spans off of it.
in alias I always make the surface as simple as possible. Ravin can correct me if i am wrong, but If i can get away with using degree 2 X 2 surfaces to start, that really makes for some sexy surfaces!! Check out all the favorites on my channel: http://www.youtube.com/user/Alias828?feature=mhee
If you want to see the worst alias studio tutorials in the world, check out my videos, but i am covering the most basic functions in the program. Please PM me for any requests, i can make them really fast.
I was just a student myself not too long ago, and i have never had any formal training in art, or CADing. All my classes I Aced in college where in Mechanical Engineering, and surface modeling was not covered, so i don't know why rev is being so deranged? Maybe he is having problems or something IDK.
Hello Yasick....
Quoting you: "When i join these curves together ( see picture )"......
I hope you are not joining curves, like we would normally do in rhino. You never join things in alias really. I m not sure I understood what you meant, but I wanted to make it clear to you.
Good luck!
hey, just wondering.. what is the best way to create surfaces like this, but using symmetry? because if i just do one long curve i dont have as much control, but when i do just a half, then use symmetry it doesnt match.. i dont know why.
the only way i can get the smooth curvature without using symmetry is do one long curve,
which what you see in the picture.
but id like to know how to make it smooth using symmetry? any suggestions?
Thats a typical question. When you have big curves, you dont have enough points to control the shape you want. So, how do you do that?... Make that curve with more points?.... NO, because you are introducing spans. This is alias, it doesnt lke spans. You are left with one more solution. Break the curve into more curves. And those 3 or 4 curves, will look like a single curve. This is where curvature plots are handy.... You control the transition between curves, fine tuning them. That s how alias works. You shouldnt see things as, say 1 surface, or 1 curve, but rather a collection of patches making 1 big area, or a collection of curves. That s the traditional way of working in alias.
I ll give you one hint....Which is in the technical surfacing tut...U make say a big curve, with many points and spans.... No problem. Then, you will use CURVE FIT, to make the segments as you wish, to your taste.
See the CURVE FIT command help. It s very important u read the manual, for the commands u are using, so u see all the available options u have and what they mean. That s how you will learn. Not by asking and giving you the answers on a plate.
Of course, feel free to ask anything you want.... I didnt mean that.
Hope that helped.
Good luck ..... You ll get there, dont worry... You have only to learn the alias philosophy of doing things.
The questions you have been asking make all the sense, are are the questions everybody asks at start. Perfectly normal the problems you are finding. Alias is hard to work with. It s very picky, only eats good geometry, or you ll be stuffed later.
understood, tested it works. to be honnest i was thinking the same thing as well, make that in patches ( your fav word ) thanks alot raven, u deserve a medal of helping out on these forums mate.
really appreciate it. hope everything is going great for you.
You can ask yasick if my models suck. He has seen one, actually. But you arent. Yours definitly are bad. They dont even have the right proportions, if you know what that means.Looks like you dont, and if you do, oh boy, you are pretty bad. Well , you couldnt even distinguish a CEO from a moderator, could you. Dont even know why am answering to such a person like you. Very unusual for me. Goodbye forever wanna be. I dont care dude......Ewwwwww
@yasick
I m glad you got it (as I expected). It takes some time to assemble alias workflow. It s pretty hard to do things the way he likes them, and so many times they are not intuitive.
Slowly, you ll understand the- trim VS non-trimmed issue -, and you ll know when to use them appropriately and wisely.
When you know the software even better than you do so far, all the things i said will make sense to you, and why it shouldnt be otherwise.
With your commitment, which i appreciate a lot, one day and it wont be long, you will surprise me with with some very good piece of work. You ll see.
Has happened before, is all i can say.
Good luck man..... And all the best to your UNI stuff.
You can ask yasick if my models suck. He has seen one, actually. But you arent. Yours definitly are bad. They dont even have the right proportions, if you know what that means.Looks like you dont, and if you do, oh boy, you are pretty bad. Well , you couldnt even distinguish a CEO from a moderator, could you. Dont even know why am answering to such a person like you. Very unusual for me. Goodbye forever wanna be. I dont care dude......Ewwwwww
@yasick
I m glad you got it (as I expected). It takes some time to assemble alias workflow. It s pretty hard to do things the way he likes them, and so many times they are not intuitive.
Slowly, you ll understand the- trim VS non-trimmed issue -, and you ll know when to use them appropriately and wisely.
When you know the software even better than you do so far, all the things i said will make sense to you, and why it shouldnt be otherwise.
With your commitment, which i appreciate a lot, one day and it wont be long, you will surprise me with with some very good piece of work. You ll see.
Has happened before, is all i can say.
Good luck man..... And all the best to your UNI stuff.
Blah blah blah, lets see you're work if you so godly!!!!!!!!!!!!!!!!!! But, you won't cuz it sucks probably. You didn't even know about the symmetric align tool you are soo new to alias. You said that curvature is 1/r for all curves, hahahahahhahahahahaha. Dude, i am laughing so hard right now my sides are hurting you have no idea. I can school you in mechanical engineering and nurbs, so don't be such a jerk. Funny thing is too your probably twice my age.
Originally Posted by yasick 
..... You ll get there, dont worry... You have only to learn the alias philosophy of doing things.
