smoothing groups on maya ?

deckseck

hi i have seen that in max you can choose faces to do smoothing groups and then with chamfer modifier subdivide .
In maya you can do it something like that i thought could be use hard edges + bevel only in the hard edges but sometimes give issues when i subdivided
thanks for all

Axi5

Smoothing groups is a Max only thing but all it does is generate the hard edges anyway. Can you show us what issue you're having? 

deckseck

okey  thank you very much
that is the isiue

deckseck

i made a test and i see if i continiue the edge along the side solved the issue but i dont undrstand how works hard edges on maya becouse besides those new edges should not be harden

Bartalon

Check your Attribute Editor for that specific construction history node.  You'll find a "Smoothing Angle" parameter.  This determines whether an edge is hard or soft after beveling.  The default is probably something like 30 or 45 degrees.  The higher this value, the more edges adjacent to the bevel that will be soft.  It's really a non-issue, as you can go back and harden or soften specific edges any time you want.



As a side note, hard edges do not interfere with the smooth preview.  If you have a hard edge when smoothed, it means you have bad topology in that area.

Linko

Hi, your hard surface workflow is obsolete, now artists use the rounded edge shader (aka bevel shader) of Blender Cycles 2.79.1+ (free) or Modo, VRay, Houdini and Redshift because it works with every topology so you can use substract booleans modifiers everywhere and it works great with text too. The meshes gets rounded edge without an union booleans, you just need them to intersect and to have them in the same editable mesh object. The generated rounded edges can be baked on a normal map.

An example with your model in Blender:



An example with a more advanced model and subtracts boolean texts:



Tutorial on Blender (in french):

https://youtu.be/wdaraOkqt04
Tutorial on Modo in english:

https://youtu.be/EHkbCQQykAg
Arnold render does not support it yet, you must purchase Redshift if you want this effect in Maya and I don't know if you can bake with it. For free you have Blender's recent builds, it supports it for both rendering and map baking.

For smoothing group you are talking about edge splits used to fix the smoothing by disconnecting the edges. 3ds max's smoothing system with numbers is a mess and not based on the edge angle. Unfortunately Maya has no modifier I guess his hard edge tool edit the normals.
Blender uses a modifier so edges are disconnected internally, it's non-destructive and sharp edges can be marked, you can find more infos about edge splits here: https://docs.blender.org/manual/ko/dev/modeling/modifiers/generate/edge_split.html

Detached edges or using an edge split modifier works with rounded edge shader, that's how we work with it, the workflow is similiar to low poly modeling with the difference that we apply a bevel shader.

Axi5

Obsolete is a strong word...

deckseck

okey i think i understand all a lot of thanks for the info to all  your coments have be so helpful

Bartalon

@Linko I'm going to have to agree with Axi5 here about chamfer modeling based on smoothing groups/hard edges being obsolete.  Rounded edge technique is simply another approach that works.  A vast amount of people still use subdivision modeling.  Both methods have benefits and drawbacks.

Regardless, OP is using Maya, not any of the other software you listed.  It doesn't solve his problem or answer his question by swooping in and saying "drop what you're doing and use this other program instead!"  A fine suggestion as an alternative but not a solution.

onionhead_o

decksack: Try changing the miltering to none and smooth preview.

deckseck

onionhead_o said:

decksack: Try changing the miltering to none and smooth preview.

i try it and fixed it thank you man

poopipe

Axi5 said:

Obsolete is a strong word...

Not as strong as the one I was going to use to describe the claim made