do đó, nó quan trọng để tìm hiểu làm thế nào để có hiệu quả áp dụng chúng khi render một cảnh. Trong phần này, bạn sẽ tìm hiểu làm thế nào để kích hoạt các hiệu ứng và các vấn đề cơ bản của cách làm việc với họ. Sử dụng cả hai tác dụng có hiệu quả gắn chặt với vấn đề làm cho chất lượng. Chương 12 | adding components 181 Figure Position the socket in the opening at the side of the torso. 38. After placing the socket spend a few minutes editing the position of the points on the torso so the socket fits more naturally. 39. Save the scene as . To see a version of the scene to this point open the scene from the chapter4 scenes directory on the DVD. Crease Sets If you create a crease for a number of selected edges that you will later readjust you can create a crease set. A crease set saves the currently selected creased edges under a descriptive name. To create a crease set follow these steps 1. Select some edges that you want to crease or that already have a crease. 2. Choose Edit Mesh Create Sets Create Crease Set Options. 3. In the options enter a descriptive name for the set. Any time you want to select the edges again to apply a crease follow these steps 1. Choose Edit Mesh Crease Sets. 2. Choose the name of the set from the list. The edges will then be selected and you can apply or adjust the creasing as needed. 182 chapter 4 polygon modeling Mirror Cut The Mirror Cut tool creates symmetry in a model across a specified axis. The tool creates a cutting plane. Any geometry on one side of the plane is duplicated onto the other side and simultaneously merged with the original geometry. The back side of the shoulder armor is not visible in the image Figure so we re going to assume that it s a mirror image of the geometry on the front side. You ll model the front side first and then use Mirror Cut for the geometry across the z-axis to make the back. FIGURE The shoulder armor is the next object to model. In this section you ll model the geometry for the space suit s shoulder armor. You ll start by modeling the armor as a flat piece and then bend it into shape later. In the options for Mirror Cut you can raise the Tolerance which will help prevent extra vertices from being created along the centerline of the model. If you raise
