I’m modeling a long bridge for a project, and I just need a second opinion on the curvature of the bridge. the bridge is supposed to span 2 mountains, so I need it to look realistic enough…any help and advice appreciated.
The bridge looks a little too flat.
That specific curve is called a catenary. The formula is y= a*cosh(x/a)
You can enter it in the mesh/math function/ z function as z=a*cosh(x/a)
(you will have to enter a number for a, larger numbers like 5 to 10 will give you what you are looking for…)
I understand that you want a curve, but you can use this object to line it up correctly.
also depends how realist you want to be ?
do you have the real equations for your bridge or is it only an approximation!
and what type of bridge is it like a cable bridge or suspended bridge ?
if sag is less then 10 % you could use an equivalent parabola !
Sorry haven’t got to check this in a little while
@Dru:so where do I input this equation? I don’t know where
mesh/math function/ z function
@Ricky: I want it to be as realistic as I can be without making the whole model a huge amount of verts. I’m just estimating with a bridge I’ve been to in the past, but a little more tense because it spans mountains. It’s a traditional bridge: wood planks attached to rope. The railings are also thick rope. The connection between wood and railing is…well…rope. I don’t know the difference, even after looking it up
made it a little more curvy…
Must be in mesh addon ‘extra objects’ you will have to enable it in prefs sorry I thought it was part of the default toolkit.
also depends if you need to do a fly by close shot with camera!
so need very high res for a very long bridge ?
what is length for this rope bridge ?
and do you need to show each plank or only one UV map plane ?
@Ricky: no, it will just be a mid-long range panning shot. I’ll just make it higher-poly if I decided to do a closer shot
In general, it will look a little bit like: http://www.blenderguru.com/tutorials/how-to-make-cliffs/#.U_1JDBsg_IU , except a little sharper, look a little better maintained
Quickly modeled something of a replica
If you can see the bridge, it will look that small
@Dru: Thanks, I’ll try using it, see how it looks
Let the Blender work for you…
Ok thanks guys, I think I have what I want, using all your suggestions and a simulator to create a combo of them