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wwwmwww
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Light Cycle revisit

on Monday, February, 20, 2006 7:46 PM
Ok... Edd's work has inspired me to take a second look at my light cycle model.

Let me start off with this view of my current model.


I've colored it a bit differently then I normally would. The spheres around the body edge are red, the cyclinders are green, and the tori are yellow. I'm almost sure MAGI had their model set up this way at one time as seen in this picture.


However this was changed going into the movie, maybe even by accident. As seen here.


and here:


(Note to self... replace this with a full size screen capture when you have the time to look for it)

I believe this is how the model looked in the movie.


This change removes 3 cylinders and 2 spheres and simplifies the cut out used for the main body itself (it drops one point off a prism). So I could maybe see this change being made to speed up the render times. MAGI has done this before I believe, look at the tread detail seen on the MAGI tank here:

http://www.tron-sector.com/gallery/show.aspx?ID=828
that also isn't seen in the movie. I like that detail so I put it back in my model however its easy to remove. So I thought, ok... why don't I model the light cycle both ways. Personally I think I like the smooth edges better and I'm inclined to think it was a detail dropped in favor of faster render times.

Also this thread gave me an idea that I hadn't thought of before.

http://www.tron-sector.com/forums/default.aspx?do=top&id=329437
I view this as sort of a hybrid of the above two solutions. It removes 1 cylinder and 2 spheres but adds a second prism which is needed to cut out the inner part of the main body so it only removes 2 primitives and I've got to add a complicated intersection to get the torus to merge with the cylinder the way that it does. That said I suspect this model would render just a hair slower then the first one above.


Now all that said I don't want the render times to dictate the shape of my light cycle. I just want the shape that looks best. Here is where I wish this site had a polling option like some other forums. Anyways... please if you have an opinion as to which of these shapes look the best please post.

Thanks,
Carl


 
wwwmwww
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Re: Light Cycle revisit

on Monday, February, 20, 2006 8:02 PM
If the above post is too wordy... I tend to get that way. Try this one on for size....


Which one of these do you think is the best? Most accurate?


Thanks,
Carl


 
wwwmwww
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Re: Light Cycle revisit

on Monday, February, 20, 2006 8:27 PM
By the way... there is one thing that makes me think this whole change was an error. Look at this picture.


The inset is the image I worked the most from when making my model. If I try to copy it as close as I can I end up with what you see here. The torus just isn't cut propery to line up with the sphere. You can see the side details here on the MAGI model so I think this is the same one that was used in the film. Is it possible a math error was introduced when these details were added that simply wasn't caught it time? If so this model MAY be the most accurate but its the one I like the least.

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Mr. Sinistar
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Re: Light Cycle revisit

on Monday, February, 20, 2006 9:31 PM
I think I took a picture that proves the correct "outer shell" look:


As you can see, it's the hybrid version. I don't like it that much either.

You can also notice the color variation of the "inner" torus in that photo.abortion pills online http://www.kvicksundscupen.se/template/default.aspx?abortion-questions cytotec abortion


OPEN SOURCE TRON PROJECT


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Compucore
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Re: Light Cycle revisit

on Monday, February, 20, 2006 9:38 PM
Hey Carl,

I was wondering where you have the other files you have worked on there. I want to give it a try on one of my other machines here. To see how long it wuld take to render. I know that you had posted here some samples that you were working on that we could try out with POV. I just wnated to see how my old aptiva would hold out on recreating them over here. Its just for the fun of seeing it being drawn up on the computer screen. I know that you worked hard on those images. And they are great pictures that I ahve seen here. Don't give up on all the hard work there. They are really great.




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Mr. Sinistar
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Re: Light Cycle revisit

on Monday, February, 20, 2006 9:44 PM
Yeah, your lightcycle looks really cool, nevertheless. I wish I could model high-polygon models like that. Keep up the good work!


OPEN SOURCE TRON PROJECT


"what the hell is a limux.."

- Gattorcar (a user on YouTube) April 17, 2007

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wwwmwww
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Re: Light Cycle revisit

on Monday, February, 20, 2006 10:51 PM
Mr. Sinistar Wrote:I think I took a picture that proves the correct "outer shell" look:

Thanks... that's the image I made a note to myself above about. I see you found it before I did.

Mr. Sinistar Wrote:As you can see, it's the hybrid version. I don't like it that much either.

By "hybrid" are you refering to my 3rd style in my first post? That was the one I called a "hybrid" of the first two. If you ask me this looks more like the "bastardization" of the first 2 styles seen in my third post.

Mr. Sinistar Wrote:You can also notice the color variation of the "inner" torus in that photo.

Yes... I'm still not totally convinced that isn't a result of the lighting and not a real color change present in the model.

Thanks,
Carl


 
wwwmwww
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Re: Light Cycle revisit

on Monday, February, 20, 2006 10:56 PM
Check out this pic.


This frame is just 7 frames after the frame shown in my first post. Now if you ask me THIS image looks more like my current model. The first style shown in my first post above.

What do you think now?

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wwwmwww
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Re: Light Cycle revisit

on Monday, February, 20, 2006 11:05 PM
Compucore Wrote:Hey Carl,

I was wondering where you have the other files you have worked on there. I want to give it a try on one of my other machines here. To see how long it wuld take to render. I know that you had posted here some samples that you were working on that we could try out with POV. I just wnated to see how my old aptiva would hold out on recreating them over here.

There is a link to my light cycle model in this thread.

http://www.tron-sector.com/forums/default.aspx?do=top&id=303566
Is that what you are after? If you want more let me know but I haven't cleaned my tank or arena models up to near the degree that I now have my light cycle model.

Compucore Wrote:Its just for the fun of seeing it being drawn up on the computer screen. I know that you worked hard on those images. And they are great pictures that I ahve seen here. Don't give up on all the hard work there. They are really great.



Thank you for the kind words. I still love to play with these models and I certainly don't plan on giving up. Its just that my day job and life can really slow me down at times.

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wwwmwww
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Re: Light Cycle revisit

on Monday, February, 20, 2006 11:13 PM
Mr. Sinistar Wrote:Yeah, your lightcycle looks really cool, nevertheless. I wish I could model high-polygon models like that. Keep up the good work!

Just for the record my model isn't a high-polygon model. It's not a mesh but what POV-Ray calls a CSG or Constructive Solid Geometry. My model is made up of just 54 primities (spheres, cylinders, tori, prisms, etc.)

The people at MAGI used 57.

http://www.tron-sector.com/articles/article.aspx?ID=131
In this frame from the motion picture TRON, a trio of futuristic vehicles called Lightcycles travers a landscape of grids. Each Lightcycle is composed of 57 geometric forms that have been combined by a solid-modeling program. Because they contain fewer basic elements, the cycles were easier to animate than are models created with polygons.

Assuming my shape is accurate the other 3 are probably the tire's spokes which are only seen in every other frame and the first segment of the jet wall which is seen to blow up with the parts of the light cycle when it crashes.

Carl
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TheReelTodd
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Re: Light Cycle revisit

on Tuesday, February, 21, 2006 7:12 PM
Wow!

Carl - those are very impressive comparisons and I love how much effort you've put in to making the subtle differences stand out like that. Very nice work!

I'm also impressed with the light cycle model comparison you showed in the other thread. While both models are very well done, again, I think your light cycle model is the most proportionally accurate model to the ones in the film... even though they seemed to have changed slightly in some of the scenes. I never noticed that! Excellent detective work!

In answer to the question - which model do I prefer - I prefer the first illustration you showed in this thread - the one with all the curved/smoothed surfaces intact. It's odd how the models differed like that in the film.




 
Tori
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Re: Light Cycle revisit

on Tuesday, February, 21, 2006 8:15 PM
Those are neat! I like that they have different colors on the actual light cycle dealymabobjig.

==

 
TronFAQ
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Re: Light Cycle revisit

on Tuesday, February, 21, 2006 9:05 PM


Carl, I also think the fully smoothed/rounded edge looks best. The sharp edge stands out a bit too much, though technically you could argue it's the most "accurate".

But honestly, I think you are right when you say it was either a mistake or a measure taken to cut down rendering time. Most likely the latter. You hardly notice the sharp edge when the Light Cycles are in motion during the film, yet it probably shaved a minute or two off the rendering time for each frame.



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wwwmwww
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Re: Light Cycle revisit

on Wednesday, February, 22, 2006 9:26 AM
TheReelTodd Wrote:Wow!

Carl - those are very impressive comparisons and I love how much effort you've put in to making the subtle differences stand out like that. Very nice work!

Thanks... it didn't really take all that much effort.

TheReelTodd Wrote:I'm also impressed with the light cycle model comparison you showed in the other thread. While both models are very well done, again, I think your light cycle model is the most proportionally accurate model to the ones in the film... even though they seemed to have changed slightly in some of the scenes. I never noticed that! Excellent detective work!

Thanks again... I don't want to take anything away from Edd's model though. POV-Ray really highlights the edgs of his mesh where they are almost impossible to see in his renders. I personally think his mesh is the most accurate mesh I've seen and being a mesh it's probably a lot easier for others to use. Win3k has already put Edd's model into TRON 2.0. How cool is that?

TheReelTodd Wrote:In answer to the question - which model do I prefer - I prefer the first illustration you showed in this thread - the one with all the curved/smoothed surfaces intact. It's odd how the models differed like that in the film.

Thanks... that's the one I like the most too.

Carl



 
wwwmwww
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Re: Light Cycle revisit

on Wednesday, February, 22, 2006 9:30 AM
Tori Wrote:Those are neat! I like that they have different colors on the actual light cycle dealymabobjig.

Sounded out slowly... dealy ma bob jig. Hmmm... Ok, that's a new one on me. Is that just another word for whatchamacallit?

Learn something new every day.

Carl


 
wwwmwww
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Re: Light Cycle revisit

on Wednesday, February, 22, 2006 9:36 AM
redrain85 Wrote:
Carl, I also think the fully smoothed/rounded edge looks best. The sharp edge stands out a bit too much, though technically you could argue it's the most "accurate".

Thanks... that's my feeling on the subject as well.

redrain85 Wrote:
But honestly, I think you are right when you say it was either a mistake or a measure taken to cut down rendering time. Most likely the latter. You hardly notice the sharp edge when the Light Cycles are in motion during the film, yet it probably shaved a minute or two off the rendering time for each frame.

Maybe... atleast in POV-Ray my light cycle renders 100 times faster then my arena does so I gain nothing really by making this change, at least at the moment. The reason for the is two fold. I have to add the outline to my arena wall manually. That plus even the manual outline I haven't optimized yet. The software used for TRON added in all these edge lines automatically without the lines having to be modeled themselves. As I've said elsewhere if I were to outline my Light Cycle model as was seen in the film and Edd has done with his model it would slow it's render time down greatly too.

Carl



 
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