[Original] image programming in actionscript3 games (serialization 36)

2.2.9 Preliminary Study on Photoshop quality-contour lines

Click the arrow on the right of the contour line icon to bring up a curve list (Figure 2.30 ).

 

Figure 2.30 contour lines drop-down list

Click the 4th icon in the second line (Figure 2.31 ). Wow, a full-scale projection effect against the sky.

Figure 2.31 set contour lines for the projection Style

Next, let's take a look at the gap and make some interesting things. For example, we can pull out a bit of color for the projection, then turn the text into gray (# cccccccc), fill in the opacity of 80%, at the same time, change the blending mode of the layer to "dissolve" (the blending mode will be described in detail in subsequent chapters). The blank projection is removed and it looks like the text to be carved on the stone tablet. (Fig. 2.32)

Figure 2.32 Add a different color and the effect after dissolution

You can also adjust the side of the wordart to adapt it to the front of the text (Figure 2.33 ).

Figure 2.33 after the projection is set to blue, the text side shows the texture of the fluorescent lamp.

After the gap is turned on, the mixed mode and font color are restored. We will continue to explore the contour lines.

Click the contour chart to bring up the 2.34 dialog box.
 

Figure 2.34 contour Editor

You can pull the points on the curve to experience the influence of contour changes on the projection style.

However, we should have fun for the moment, because this slightly complicated curve makes it difficult for us to find out the law of contour lines.

Open the "preset" drop-down box and click the "linear" option to return to our default contour pattern (Figure 2.35). The projection is also restored to the style before the contour. Let's take a look at some simple changes.

Figure 2.35 default linear contour lines

Drag the vertices on both sides to the top of the screen. The line between the projection and the background becomes clearer, and the fade-out effect decreases significantly (Figure 2.36 ).

Figure 2.36 contour line output constant: 100%

Drag the vertices on both sides to tHe bottommost, and the projection disappears completely (Fig. 2.37 ).

Figure 2.37 contour line output constant: 0%

The vertices on both sides are dragged to the center, and the projection is solid and the whole is shaled (Figure 2.38 ).

Figure 2.38 contour line output constant: 50%

Drag the left vertex to the top and the right vertex to the bottom. The fade-out direction of the projection is flipped (Figure 2.39 ).

Figure 2.39 inverse operations on Linear contour lines

From the above extreme situations, Photoshop seems to be used to control the transparency of projection at different positions in the contour lines of projection options, and the two lines in the opposite direction get exactly two completely opposite results. Why is it named as a contour line, what is the subtle relationship between the curve on the editor and the change trend of transparency? Can I use a flash filter?

These questions involve high-end Photoshop theories and high-school extended mathematical knowledge. I will further discuss them in the topics in subsequent chapters. However, for simple straight line changes, I will first give some simple and practical simulation methods in the next chapter, which also includes the "projection" of the relief type such as Figure 2.31 ".