Subtitles of the Movie

I am going to demonstrate some of the other tools we can us to create surfaces in Maya. The first tool I am going to demonstrate is the ‘Birail’ surface creation tool, and I’m going to work in the perspective window. I’ve prepared the curves ahead of time. A Birail surface is defined by at least three curves, one profile curve and two rail curves. You can create 2, 3, one more profile curves - they can only have 2 rail curves and you must have at least 2 rail curves. I’m going to go to surfaces, Birail, Birail 1, because I am using 1 profile curve. Now if you look in the help line at the bottom left, it says I need to select the profile curve. You can also see that the icon from my selection tool is changed to indicate that I am working with the Birail tool. I select the profile curve and now I look in the help line and it asks me to select the two rail curves. I draw the marquee, select the two rail curves - the Birail surface is calculated. Got to delete my Birail surface. I just want to point out real quickly - the Birail surface, the curves must intersect. They must intersect, so when you create the profile and real curves, make certain they intersect or the Birail surface will not be able to be calculated. OK, let’s take a look at the boundary surface. Again I prepared the curves ahead of time. A boundary surface is a four-sided surface and it is defined by three or four curves. I have drawn four curves. The order in which you draw the curves is important. The first curve that you draw will define the U direction, of the UV surface. To create the boundary surface, I'll draw the marquee over my curves, this is the first curve that I had created, this will define the U direction of the surface. Draw the marquee to select the curves - I go to surfaces, I select boundary. I’ve generated a boundary surface. Again it’s defined by these curves. Two of the curves are called profile curves - the profile curves define the surfaces boundary. You can see those are the profile curves right there. The other two curves defined the cross section of the surface. These would be the two curves. They are called the rail curves, these define the cross section of the surface - that's the boundary surface. Let’s delete the boundary surface, OK. The last surface I am going to demonstrate is the Bevel surface. Bevel surface can be generated with any curve. The curve I'm going to use, I’ve prepared this curve ahead of time. Go to surfaces, bevel - you can see a bevel surface has been generated along the direction of the curve I had created previously. It is important to understand that any curve can be used to generate these surfaces so long as it meets the requirements of the math to calculate the surfaces. For instance the Birail curve you need to have one profile and two rails; the boundary needs 3 or 4 curves; the bevel just needs one curve. But these curves could be isoparms for instance. I am going to demonstrate creating a bevel surface using this NURB’s cone and enter component mode. I am going to select an isoparm, go to surfaces bevel. A bevel surface has been created using the isoparm that I have selected to define the bevel surface.