This is the basic mechanics of dot-pictures.ĭot-pictures are familiar to those who were familiar with games in the 80s and 90s, but to the eyes of the generation who grew up with 3D games, they seem to be novel. On the contrary, it is now possible to create dot-like illustrations by deliberately lowering the resolution of digital illustrations or by mosaicing them.
Nowadays, it is common to use 256 colors (8 bit) for dot-dot illustrations, which is enough to represent the whole range of colors.įor this reason, the term “8-bit” is often used to refer to dot-picture illustrations regardless of the number of colors used. The 4-bit color is a technique that was used a lot in the Super Nintendo, but as the performance of hardware machines improved, the number of colors that could be output increased, and the expression of details such as shading became possible. You can see that the expression is much broader than the four 3-bit colors. With 4-bit colors, you can use 16 colors (15 if you omit the background color). You can use 4 colors at 2 bits, but if you omit the background color, you will be using 3 colors in effect.Ģ-bit is a technique often used in the NES era. In this case, the illustrations expressed in 1-bit are often painted in solid colors. Since the background is included in one color of a dot picture, you can think of it as only one color that can be used in a picture. The number of colors that can be expressed in one bit is limited to two. Let’s take a look at some illustrations drawn in 1 bit, 2 bit and 4 bit as examples. How does the appearance change when there is a limit to the colors that can be used? Unlike today, where technology has developed and 3D representations are commonplace, there was a limit to the colors that could be output for games in the past. It is called a “dot picture” from the dots that were struck on every single square of low-resolution pixels. Color limited by the number of bits
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