5. As a matter of personal preference, I like to darken the blueprints because it makes the lines easier to see. Select the image plane in the Perspective view and go to the Attribute Editor > ImagePlane1 (or whichever number/name it is), and move the 'Colour Gain' slider to a dark shade of grey (Fig05). Repeat this step for all image planes.
6. Both the front and back images need to be scaled so that they line up with the side and top views. We will use polygon planes as guides so that we know how much to scale by. To scale the front image, align the polygon planes with the major points of the car in the side view: the top of the car, the bottom and the bonnet. This then gives an indication of how much to scale the front and back image, by using the Width and Height attribute of the image plane's camera (Fig06). The three polygon planes have been selected in the side view so you can see how much bigger the front image plane is. You may also need to reposition the image plane using the CentreX, Y and Z attributes. Once all of this is done, repeat these steps so that all of the image planes are lined up and the correct scale. Once this is done, the blueprints are ready. The final step is to create a New Layer and add all the image planes into this layer, then Reference the layer so the images can be seen but cannot be selected. Finally, select the Four View in the Toolbox, and we're ready to begin the curve network.
7. The curve network is relatively simple and can be started anywhere you wish. I began by outlining the major curves of the roof (Fig07) and continued to build on this until a complete outline of the car was achieved. Make sure that you use all available views to line up the curves and use as few points as possible. Also remember that hardly any blueprints are 100% accurate, so you will either need to choose one image plane as "correct" and follow that one 100%, while following the general shape of the other images. The other way is to take averages between the images to create your curve network. Some of the stages involved can be seen in Fig08 and Fig09, while Fig10 shows the completed curve network which has been grouped and duplicated to get an idea of how the overall car will look. It is not necessary to keep these mirrored curves, so delete them - they are just to give an overall feel for how the car will look. Also notice that there are no curves for the front air intake and rear fins - they will be added later (if necessary) when we model them.
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