Vị trí. Bốn nút ở bên phải của từ khóa trên bảng Layers. Kích vào khóa Tất cả các nút để hiển thị các biểu tượng ổ khóa sau khi tên lớp. Các nút Transparency Lock khóa điểm ảnh trong suốt, có nghĩa là bạn sẽ không thể để thêm các điểm ảnh để các khu vực đã được minh bạch của lớp này. Nút Hình ảnh Khóa ổ khóa các điểm ảnh hình ảnh | 136 chapter 4 you and your entourage 2. The Material Map Browser opens displaying materials. Select Standard from the list and click OK to close the dialog box. All the parameters change in the Material Editor to correspond to the Standard material. 3. In the Blinn Basic Parameters rollout click the blank button next to the Diffuse color swatch. 4. The Material Map Browser opens again but this time it displays maps. Choose Bitmap from the extensive list and click OK. The Select Bitmap Image File dialog box opens automatically in this standard file browser. Select and click Open. The Material Editor s rollouts change to those of the bitmap. Click the Go To Parent button to return to the top of the material hierarchy. Reflectance Avg 64 Max 100 Dilute Coict 4 paoBl T taremttance Avg. 0 Max 0 Dilute 0 tì o 11 t zl B jQ to Pared Now that you have the diffuse color map the next task is to copy it to create an opacity map. The opacity map determines the boundaries of the object and gets its data from the image s alpha channel. 5. Drag the M icon meaning mapped from the Diffuse Color channel to the Opacity channel as shown in Figure . The Copy Instance Map dialog box opens. Click the Copy radio button and then click OK. Because the Opacity map must take data from the image s alpha channel it is necessarily different from the diffuse map so a unique copy is needed. FIGURE Copy the diffuse map to the opacity Map. Drag the map from here. .to here. Right now you have an identical copy of the diffuse map in the Opacity channel. You still must change the output of the opacity map to read the alpha channel of the image otherwise it reads the RGB values by default to determine opacity. 6. Click the M button next to the Opacity channel to enter a deeper level of the material hierarchy. The Bitmap controls appear in the Material Editor. Scroll down and locate the Bitmap Parameters rollout. Click the Alpha radio button in the Mono Channel Output group. .
