Join George Maestri for an in-depth discussion in this video Creating curves on a surface, part of Maya 2016 Essential Training.
- In the last lesson we saw how to duplicate surface curves to create curves to match a surface. Another way to do that is to draw the curves directly on the surface. And these are called Curves on Surface. So let's just create a simple NURBS surface and we'll show you how this works. So I'm going to go ahead and create a NURBS plane here. And I'm going to go into my inputs here, Make NURBS Plane and I'm going to give it a few more patches in U and V, just to give it a little more detail.
And then I'm going to move it so we can see it. So here I have a basic NURBS plane, and of course if I wanted to I could reshape this however I want. Now if I want a curve on this surface, one way to do that is to draw directly on this surface. Now a NURBS patch is basically a 2D plane stretched in 3D. But I can use this as a 2D drawing board, onto which I can draw other NURBS curves.
So we can do this by making the object live. So all I have to do is go over to my Snap menu here, and the one on the far right is, Make Selected Object Live. If I click on this, it tells me that my NURBS plane is live. And then when I go to draw a NURBS curve, it will stick to that surface. So if I do, Create, Curve Tools, CV curve, I can draw a curve on that surface. And notice how this is sticking to that surface.
I can't go up or down, I can only go left, right, back and forth. I can't go above the surface, I can only draw on the surface. So once I enter that, you can see that I've created a curve on the surface. Now this curve is a regular curve, except it only exists along the dimensions on that surface. So if i right-click above this and go to Control Vertex, I can only move these control vertices in two dimensions, or along the U and V axis of this NURBS surface.
I can't move it above or below, I can only move it on the surface. Another thing I can do is any curve operation. So if I want to, I could for example go into curves and do and Open, Close. So I can make that a curve surface or I could open it again. Now one of the reasons you want to have a curve on surface is to attach a NURBS surface to other objects. So if I were to take this curve, I could go into curves and do Duplicate Surface Curves, and what that would do, is that would go ahead and duplicate this curve.
Now I'm going to go ahead and turn off the object as live. And now we have two curves. This curve and the one above it, and notice how when I adjust the CV's of the originating curve, it affects the subsequent curve or the duplicated curve. Now if I want, I could take this duplicated curve and scale it down or change it in any way. But I also can use it to create other surfaces.
So if I select this curve on surface, and Shift select the duplicated curve, I could turn that into, say a loft. Now this loft is backwards but we can certainly reverse that. And now this loft is stuck to the surface, so if I were to move the surface, everything would move with it but if I were to say, deform the surface, that all sticks together. So you can see this is a very powerful way to create very flexible and well connected objects.
So let's go ahead and take this a little bit further. I'm going to go ahead and select everything here and just Delete it. Now I have a layer in this scene and in that layer, I have that rocket ship that we were playing with. So let's go ahead and use this to draw on this surface. So I'm going to go ahead and select the surface of my rocket ship, make it live, and then let's go ahead and draw on it. I'm just going to use the EP Curve Tool here. And if we want, we can draw something resembling a port hole.
So we hit Enter there and then go to Curves. I can open and close this. And then I can again go to Control Vertex here and reshape this to whatever I want. Now this can be the basis of say, a port hole for this rocket, or for anything else. I could draw outlines for the fins and connect them to the surface as well. When you make a NURBS object live, you can draw curves on the surface and they will stick to that surface.
These curves on turn can be used as the basis of other NURBS surfaces.
- Getting familiar with the Maya interface
- Selecting and manipulating objects
- Creating hierarchies and layers in scenes
- Creating polygonal objects
- Extruding a mesh
- Working with subdivision surfaces
- Sculpting a basic landscape
- NURBs modeling
- Creating and applying materials and textures
- Adding lights and cameras to a scene
- Adding depth of field and motion blur
- Animating in Maya
Skill Level Beginner
1. The Maya Interface
2. Selecting and Manipulating Objects
3. Organizing Maya Scenes
4. Creating Polygonal Models
5. Modeling Polygonal Meshes
6. Refining Polygonal Meshes
7. Sculpting Meshes
Sculpting a basic landscape4m 51s
8. NURBS Modeling Techniques
9. Refining NURBS Models
10. Creating Materials
11. Applying Materials and Textures
12. Rendering in Maya
13. Animating in Maya
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