Round corner Bump and something more?

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  05 May 2009
Round corner Bump and something more?

how can i use "Round Corner" + and image Bump Map?

i use a mix and plug the bump map generator as main color, and then the round corner node into the primary color, (just the second one) and set it as Mix,
but i don't get any bump am i setting something wrong.
  05 May 2009
What version of the software are using? 7.0, 7.5?
  05 May 2009
without any testing or real basis for this suggestion I'm gonna say you could try taking the round corners node and running it into the bump input on the bump node (with the texture image going into the "input" input)

cant test without xsi in front of me but it might work
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  05 May 2009
i am on version 7.1 (we will get 7.5 later on)
i put a picture how i think it works, i read the manual on the round corner node, but didn't say how to mix it with something else, so i am assuming that must work similar if you mix 2 image maps for the bump,
  05 May 2009
What kind of material are you using? With architectural_material try this:
Create a bumpmap generator and put it in the "standard bump" port of the architectural material and the round corner in the "overall bump" (maybe the names are not correct, I'm not on the software now). Set the values about bump (and also round corner) at the fourth value from the top, if I'm not wrong it is "set to world space" (maybe I'm wrong, tomorrow I can tell you what I do normally).
  05 May 2009

Middle cube is rounded corner. Not a great effect... It can get unstable sometimes,
too. I should add that the image bump came from the image shader's options.
  05 May 2009
scottsch how did you set the image map on the bump i don't see it on your tree,
(Nice example)

Thanks guys.
  05 May 2009
I am puzzled...
I used a mix2colors node pluged both in and it worked fine in 7.0 and 7.5. It didn't matter which was base or color1.

The only thing I see different is I plugged the mix2colors node directly into the phong bump node. Try that.


Last edited by Ohmanoggin : 05 May 2009 at 07:17 PM.
  05 May 2009
I find I get more predictable results for one reason or another if I pipe it directly through the material as show in this image... (where the gif is orange it should be yellow and red- my biayd.) This is how I "learned" to use it though I'm not positive it's the "proper" way.

Hacktastic? Seems there are quite a few ways to do this so long as you pass the info along correctly.

I'd think though it would be MUCH better to use a normal map since bump mapping is terribly slow in mr IMHO. Not sure if it works with displacement too...which is also faster than bump mapping in many situations...

Keep in mind too this is intended AFAIK as a alternative to micro-beveling...not anything much larger. It's really nice for small scale, machined edges and such that you are not going to get uber close to...

Last edited by mocaw : 05 May 2009 at 08:43 PM.
  05 May 2009
round corners is outputting vectors, if you want to mix it with another bump use vector-vector with adding node
Attached Images
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  05 May 2009
pelos, in the "image" node there is a checkbox to use the image as a bumpmap as well.
It also has bump parameters like contrast and height.

if i need a bump i usually just use this. i almost never use bump in my stuff, tho,
just not required for what i do (distance viz shots) and it kills render time, as said.
A lot of times with fabric you dont need it, as the fabric texture is enough to confuse
the eye into thinking there is a bump. Plus fabric is matte and you notice bump less
anyway on matte materials.

here is a new screen (Bump Extreme 2.0 - I can practically taste the metal):

  06 June 2009
I'm working on a simple animation for a client that has to be rendered fairly hi-res with quite a few frames. The geometry could not be simpler too. I needed some small bevels, so I thought heck- I'll use this shader.

It was working just fine for the most part, but on a whim I decided to sub-divide my mesh 5 times with an operator and then sub divide it once at render time to achieve the bevel. I was surprised to find the sub-divided one rendered faster- esp. on rendering a sequence after the mesh was loaded!

Granted- the only thing I'm using on any pass so far that uses ray tracing is the AO- which would require the bevels to render correctly anyway, but still...goes to show that you might want to do a test or two before settling on something that "saves you rendertime".
  06 June 2009
Wow i didn't know there were so many ways,

after checking some options, and having some little bugs on that matter,
i prefer to model the bevels myself, i am worry that in the middle of the production something might happen.

and i will use it only in thing that wont matter.

thanks guys for all the examples that you sent.
  07 July 2009
ok sorry took me a little time to write on this matter again.
i was working in a project with modo.

the reason that i got a hard time on this is becuase i was using Cook torrence instead phong.

phong does have a bump imput wile i didnt find it on the cook torrence, i change the node to phong and adjust the specularity to mach as posible to the one i had with the Cook torrence.

i plug the image bump into the bump imput on the phong
and round corners into the material directly.

hope it help if someone get stuck on this matter.
  07 July 2009
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