surfaces from a network of curves

[dany996]

Hello.
I present my name is marco and for some time I decided to approach modeling 3d (for model use), I downloaded the evaluation version of rhino and began to follow the first level tutorial.
However, I encountered a problem during the performance of the ‘creation of surfaces from a network of curves’, after the development of the connection surface near the edge curves there are obvious imperfections that I failed to eliminate.
I attach a screen shot to highlight the anomaly.

Thank you.

Mar

 

[enri]

the anomalies are due to the approximation of the resolution of the surfaces themselves. go to preferences and select in the appropriate panel (I don't have rhino below, I don't remember what it is called, I think mesh) select "more accurate". If it doesn't work yet, you can set the parameters by hand.

 

[dany996]

enri,
I couldn't find a voice in the mesh panel that contained a value of the type
“more precise”, however I started playing with the values present, I changed the parameter “maximum edge length” where it was present 0.0 I empirically inserted 1.0 and this allowed me to adapt the surface to the edge curves.
Thanks again..

Hello Marco

 

[Fulvio Romano]

the anomalies are due to the approximation of the resolution of the surfaces themselves. go to preferences and select in the appropriate panel (I don't have rhino below, I don't remember what it is called, I think mesh) select "more accurate". If it doesn't work yet, you can set the parameters by hand.

I allow myself to contradict you.
the surface is a nurbs and not a mesh, so it should not be stuck, unless you are talking about the shade tile.

the surface is done well, what you see is a shade approximation to simplify display. I don't have a rhino under my hand and I have no way to tell you the controls, but if you make a render of the same area you will see the continuity between the surfaces.

If you want to remove this "default" you have to work on the display settings, but so it weighs down the view itself. you better "to look at it" and leave things like this, so much to analyze the continuity between the surfaces there are other tools designed exactly for this purpose.

 

[poldo]

It is only an "optical effect", that is geometry is ok, but at video you see it so as not to weigh the pc.
cmq if you want to improve the display:
dx button on the 5th icon at the top starting from the right in your screenshot (the blue sphere).
opens a window "property of the document", the second entry is "mesh" click once and right tells you: "quality of rendering mesh"; by default is usually set to "scalettate and more alert", you check "smused and slower" and give the ok.
the display now is ok (if the geometry is actually correct), but you will be more struggling to rotate the object. This however is influenced by the complexity of the 3d model and the features of the computer you are using.

 

[dany996]

poldo, I followed your indication and the problem actually disappeared, but it didn't seem just a problem of representation as you can see from the image attached in the pima rendering that modified the settings the surface appeared laundry.

 

[Fulvio Romano]

It means that the render was not enough "painted". I do not mean the resolution, but the settings of the tiller.
as I say as much as podium, the effect does not depend on the surface.

Besides, with the poldo instructions, you did not change the surface, which remained the same as before.

so to clarify, it is not possible to make of nurbs. the engine of rendering, before making the image, ticks all the surfaces that are not already mesh, in practice makes mesh only use and consumption of rendering. If you increase the tiling level, the render will last longer, the surfaces will be "without holes", but the model does not change.

change the shade tile settings instead, weight shadata display.

 

[poldo]

I don't make it from rhino but I think you should always open the usual window and improve the settings in "rendering" (just over "mesh")

 

[enri]

fulvio, you're right, but in the rhino menu calls them mesh, not intended as polygons of course.