1 unit difference 3DS max

HAWK12HT

Hi all, ok this is real mind bender or i did something wrong.

ok here is the problem 1280-768=512 then you divide 512 / 2 = 256

Now the issue with the given numbers im having is I have one large cylinder floor with diameter of 1280, on top of it I have another cylinder floor with 768 diameter. After aligning the 768 diameter floor on the large 1280 floor I should have 256 units on each side but guess its giving me 257 o.O wt*


This is part of my modular environment and 1 unit difference is = nightmare in UDK. :poly122::poly122:

FicWill

Does your cylinder come to a point where you're measuring?

HAWK12HT

Yup , its quite weird. Any how i did some other approach to avoid that, but still I would like to know if someone know about why is this happening.

Mark Dygert

1st, it would be good to post your fix so other people who stumble on this thread while looking for answers might get one

2nd, one thing it could be...

How many sides does the cylinder have? Is it divisible by 4?
If not, your cylinder could have 2 flat sides (East and West) and 2 pointy sides (North and South). The diameter across the flat sides is shorter than the diameter across the pointy.


If you use a cylinder with the number of sides that is divisible by 4, you will always get points at each of the compass points (North-South, East-West).


Multiple of 4 cylinders also makes them easier to texture because you can mirror it (half) or quarter mirror all 4 of the directional quadrants.
With 18 sided cylinders you can only mirror it in half, not quarter it.

This is why most game artists stick to cylinders with a number of sides that are divisible by 4 (4, 8, 12, 16, 20, 24, 28, 32...).

Noors

mmh yeah math is math, i don't see how you couldn't have the right measure here. The radius is between origin and vertices not edges.

HAWK12HT

Hi, Thanks Mark. Well there is no solution, I always use 12 18 sides and add extra edge in between to avoid spec seams.

See what you did is exactly what i did but for some still unknown reason it did not work i was having 1 unit difference still. ah sigh.

Well the avoiding method is that I made a plane with my desired width, then kept adjusting its length and using bend modifier until I get the 25% circle. Mirrored it 3 times and voila a full circle in modular approach. After that for bigger floor (outer) I chose the width again and used the same length as the first one and it wrapped around the inner circle just fine. Repeat steps of mirroring and you get 2 full circle floors that are modular and can be Unwrapped flat .

Hope it helps.