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0:01 Hello, I'm Neg, an illustrator. This video is about light. Thank you for your attention. Do you all know how shadows become blurred? By the time you finish watching this video, you should be able to understand the principle . The theme is light sources.As you deepen your knowledge of light, you will be able to color based on the evidence , and you will also be able to add reality to your paintings.I am particularly interested in thickly painted patterns. If you have, knowledge of light will definitely be useful.I explained about thick painting in my illustration course
0:47 , but if you have a good understanding of light, you should be able to absorb it faster.By the way, Mr. Kage also introduced my course in his video. Now I'm going to start explaining about hard light and soft light.First , let's look at the expression in illustrations rather than the principle.That 's more fun, so this one is lit from the left with strong hard light. This is an illustration.As you can imagine from the name, hard light creates clear boundaries and shadows.The light silhouettes created by objects with complex shapes like bones look very cool.The
1:33 same goes for people.This is a Pokemon This is fan art.The shadows are strong and the three-dimensional effect is easy to convey.When there is contrast, the light stands out even more, creating a powerful illustration.Hard light has a strong ability to guide the eye.It is strong even in illustrations with backgrounds. You can't help but notice the areas illuminated by hard light.Hard light is extremely reliable in illustration production, and is used in many illustrations.So what kind of light is soft light? Let's take a look at the illustration.This is the kind of light that is similar to lighting when indoors,
2:20 and is more likely to be seen on a daily basis than hard light.Let 's put an illustration of hard light next to it and compare it.Differences from hard light The boundary line between light and shadow appears blurred.However , the sharpness of the shadows is small and it is difficult to use it to guide the eye.Personally , I think it is more difficult to depict soft light than hard light. However, in reality, hard light and soft light are often depicted at the same time. For example, take a look at this illustration . It is an illustration where hard light falls from above. The face and hands are illuminated by light. In reality, it is illuminated like this. The surface becomes a new light source.The
3:08 hand becomes a light source, and the soft light illuminates part of the face.In this way, reflected light is often drawn as soft light , so it is necessary to understand both hard light and soft light. By the way, both of these parts are shadows, but there is a difference in brightness and darkness.This is the result of drawing considering the presence or absence of reflected light.The part that is not illuminated by reflected light is naturally darker.Now , let's understand the principle. Let's get started.First of all, what is the difference between hard light and soft light ? The answer is the area of the light source.First , let's understand the depiction with hard light.Hard
3:55 light occurs when the area of the light source is small.In this image, the point is Because it uses a small light source like this, hard light is depicted quite clearly.When I was a beginner, I thought that blurring the shadows would make it look more realistic, but it turns out that's not necessarily the case. And what happens when the area of the light source is small ? For example, from a spotlight or sunlight. The sun is extremely large, but because it is an enormous distance from the earth, it is considered hard light. Surprisingly, hard light is The conditions that occur may seem difficult,
4:40 but the good thing about illustrations is that you can draw them in a way that suits you.Once you understand the principle, let's draw various hard lights in a cool way.The light emitted from the light source creates brightness and darkness in an easy-to-understand way. There are areas that are more clearly illuminated and areas that are in shadow . However, this is not to say that it is composed of two colors. There is a characteristic that the surface whose normal line is facing the light source becomes brighter. The normal line is This is a line that is perpendicular to a surface.This is difficult.The object on the right has very clear contrast between light and dark, but if it were a smooth sphere, it might be difficult to depict the gradation of light and dark
5:27 , but you should avoid this depiction. Here is a good trick.The situation is as follows.I tried increasing the light output.When the light is strong, a gradation of light and darkness is created, and soon the entire surface becomes bright.Honestly , this is easier to draw.My illustration However , I often use it.If you take the plunge and use white to paint even the textures , the light will feel very strong.The strong light will strongly guide the line of sight, and it will save you the trouble of drawing.Soft light is a reliable ally for us. Let's study this as well.Compared to hard light, the line between light and shadow is blurred.Also
6:14 , the surfaces that were in shadow when using hard light are now illuminated.This is because the area of the light source is large. For example , what is a light source with a large area? The sky when it is cloudy is a truly large area light source. If you look outside with this knowledge, you will be able to make new discoveries. However, even if you explain it in words, I'm sure it's hard to understand, so I'll try to illustrate it as clearly as possible.If you collect a lot of dots, it looks like a surface.I think a traffic light is an easy-to-understand example.Small dots come together to form a shape
7:02 . I think it will be much easier to understand if you hold it. First, let's illuminate the sphere with a point light source. At this point, it's the same as the hard light explanation earlier. Then, we also placed a point light source nearby. Naturally, the shadow will be created. Now , when we put these two together, something interesting happens. We now have bright and dark areas in the shadows. Now let's make the number of light sources three. Add one more for a total of five light sources. The gradation of the shadows became smoother as we increased the number of light sources we created.Recalling
7:48 the signal example from earlier, if we consider a collection of points as a surface, we can understand why the shadows created by surface light sources are blurred. I think it will be easier to understand if you look at this. Let's apply it. This is an image using the hard light from earlier as the light source. In reality, this kind of depiction is rarely seen. The floor illuminated by the light looks new. This is because it is a surface light source.It is illuminated by hard light from above and soft light from below.A surface facing directly to the floor is brighter than a surface diagonal to the floor. You can observe that
8:36 most of the objects we see on a daily basis are illuminated from multiple directions like this.But what happens when the objects are illuminated from only one light source ?As you can see, the shadow parts It gets dark There are no walls or floors around it, so there is no reflected light.In other words, if the shadow is not completely dark, it means that it is affected by light to some extent.Let 's try this illustration: A person is illuminated with a spotlight from above. The sharpness that is unique to hard light is very noticeable , or rather, the idea is to use hard light to make it stand out
9:24 , and the table reflects that light, creating a new surface light source.It 's the same idea as before. As you can see from the production process, it's not so much drawing shadows as it is drawing light . First , I paint in a dark color and use the light from the light source to create a three-dimensional effect. By the way, there is no reflected light. The result is a depiction like this.I made it visible by shining reflected light.About choosing the color of the reflected light.First , to learn the expression of light, observe the light.You can learn even from a single photo. You can see this here.You can see that
10:11 the areas that are hit more strongly by the light are brighter and the saturation is lower.The areas that are not hit by the light the more the saturation is high.Use this in your illustrations.Light from above is expressed as strong light. Because I want it to be bright, I choose a color that is not too vivid but has a high brightness.On the other hand, soft light from below will not be expressed as a very strong light , so I followed the previous image and placed a color that was conscious of saturation instead of brightness. I'll give you a comparison of the skin tones, and it looks like this.The hard light is white with a warm color, and the soft light is orange.Using
10:58 the lasso tool, I applied reflected light from below with a soft brush. I will give you a vague boundary line that is unique to soft light.The production process and PSD of this illustration are also available on my PixivFanbox.In this way, you can improve your coloring just by observing the photos.I talked about this time. This is a part of the story about light. I can't tell you everything yet, but I hope this helps someone. I think that if you have both the knowledge of light and the technique of drawing surfaces, you will be able to draw more things all at once. Thank you for watching.
