Sender: Spirit Fairy Rain Rain Soul Revival, message area: ANSI Discuss Title: Lecture 4 Color and Light and Shadow Sending site: Sun and Moon Guanghua Wednesday, January 17, 2007 17:42:06, site mail Color and light x 8 19 2 2 4 Principles of color matching x 8 19 3 4 complementary colors Contrasting colors Transparent x 8 19 3 1 3 Commonly used collocations Hidden text Gradient effect x 8 19 4 4 3D effect x 8 19 4 5 color basics Section 2 has already introduced ANSI escape sequences. Let’s review the color sequences again. There are a total of 16 colors available on BBS, 8 high-brightness colors and 8 low-brightness colors. The complete color list is as follows 30 31 32 33 34 35 36 37 40 SS SS SS SS SS SS SS 41 SS SS SS SS SS SS SS 42 SS SS SS SS SS SS SS 43 SS SS SS SS SS SS SS 44 SS SS SS SS SS SS SS 45 SS SS SS SS SS SS SS 46 SS SS SS SS SS SS SS 47 SS SS SS SS SS SS SS Transparent color When we were children, our art teachers must have taught us that the three primary colors are red, yellow, and blue, and that the three primary colors are additive colors. Color method means that other colors can be mixed with these three colors of paint. But in ANSI we use the Sanyuanguang RGB system, which is red, green and blue. This is a subtractive color mixing. This method is used a lot in computers. That is to say, these three kinds of light energy are used to mix light of other colors. Three primary colors red yellow blue black Mihara light red light green light blue light white light The mixing of Sanyuan light has the following rules: no light black 0 Mihara Hikaru Red 1 Green 2 Blue 4 Mixed light yellow 3 1 2 red green purple 5 1 4 red blue cyan 6 2 4 green blue white 7 1 2 4 red green blue This set of color mixing principles can create the so-called transparent color effect. Source: Sun and Moon Guanghua bbs.fudan.edu.cn [FROM: 202.120.229.10] Modification: Spirit modified this article on January 18, 23:14:28 [FROM: 202.120.229.10]