I am working a a model for DNA, and I am having a bear of a time figure out how to make it in Swift. Any of you gurus out there wanna lend me your knowledge in how I can make a anotomicly correct DNA molecule?
Thanks in advance
"You see, it's like I said, you can more with a kind word and a 2x4 then you can with just a kind word."
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As I would have to draw it out to make any sence, this could be a circular conversation. The main thing I need to do, thats giving me problems, is to be able to make a ribbon like object. The ribbon would be curved along a path that would allow it to turn 360. The ribbon would not turn 360 planerly, but over a distance.
The best way to image it is if you made a box using the lathe tool, and had a way to then define over what amount of Z axis the Lathe tool would make the object.
Does this help?
Thanks
"You see, it's like I said, you can more with a kind word and a 2x4 then you can with just a kind word."
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its called a double helix...and yea i've done it in swift v2...it was very hard cause swift doesn't have a simple twist modifier...so i have to make each section then copy it then rotate it..until it looked similar to the double helix..since there was so much lines when i rendered it, it had a huge file..
I Have made a model like the one above, but it is not corect. I figure this is a lost cause. Oh well. Thanks all for everything.
"You see, it's like I said, you can more with a kind word and a 2x4 then you can with just a kind word."
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Actually, the exterior of that is good, how did you make it?
"You see, it's like I said, you can more with a kind word and a 2x4 then you can with just a kind word."
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Thanks Blink - but I only made a twistie ..not the standard of that roadster! Brilliant work, mate
You guys will kick yourself when I tell you how I did it.
If ever you saw my little tutorial on making a bent tube - that was almost all there was to it. Only difference was having a pig of a time getting the twist as well as the bend correct.
The tube tutorial is here
This time however - I used the lathe editor. Then moved ( while still in the lathe editor )the lathe object far from the centre and then adjusted the sweep angle down to just under 10 degrees to give the wedge shape needed.
Now it's a matter of placing each wedge next to the last one and twisting it slightly and then pivoting it until it lines up - the slight twist will cause it to spiral. Once you have the twisted half torus right - group, copy and paste ( it pays to group it each time you make a join and then copy the bigger chunk - its much faster that way ) and align each new section for as long as you want the twister. Then group it all together, copy - paste and rotate the copy 180 degrees about its axis to get the second torus. Turning it into a ribbon was done by grouping both objects and stretching the Y axis by 2.75 if X and Z were at 1.
Well nitrocharged, you have a great grasp of the physics behind Swift 3d. Excellent job. I'm going to review to tute, and give it a whirl.
Thanks
"You see, it's like I said, you can more with a kind word and a 2x4 then you can with just a kind word."
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...so the tute answers the question about segmenting primitives.. answer, you can't! otherwise you wouldn't have had to build the 1/2 torus from scratch.
i've found the position of the pivot for the smaller cylinder is key to matching the pivot for the torus, also locking the rotate to 10 helps with the incrementation.
I just stumbled upon this thread and interestingly enough, I was trying to create the same thing not long ago. I didn't have the in-depth responses you have already seen in this thread, so I managed my own way. It was kind of tedious at first, but that is because I was brand new to Swift 3D. This dna strand was created by copying and pasting grouped objects and then moving them down on the y-axis and rotating them to create the next piece of the spiral. Here's the outcome.
nice work man.
now that you feel comfortable with the program, try modelling the male dragon scene from reign of fire . Failing that, animate something on the latrhe timeline. It has the flexibility to produce organic objects as well as mechanial ones.
post away when done!
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