My words surprised everyone, and Xu Tong immediately walked up to me and asked me what was going on.

"Two big cases, one murderer. Sure enough, if we rack our brains, we may not be able to imagine that this will be the case. I said.

Xu Tong was anxious, he was a little excited, and asked me what was going on, I asked the police for a pen and paper, wrote a few things on the paper, and asked them to prepare for me immediately. They didn't ask any questions, and ran quickly into the vast night in the distance. I looked at my watch, and it was already early in the morning.

I sat on the side of the road, lowered my head and thought carefully, and Xu Tong didn't dare to disturb me. Xu Tong walked around in front of me, came over for a long time, and the policeman who went out to prepare things for me did not come back, he was even more anxious, saying if something was wrong, why he hadn't come back yet.

At this time, I stood up, my heart relaxed a lot, and I replied, "In the middle of the night, some shops have long been closed, and it is not so fast to prepare those things." ”

Xu Tong could only be quiet again, and after nearly an hour, the policeman who ran out to run errands finally came back breathlessly, he was carrying several large bags in his hand, and he was a little embarrassed to say that he only found some small ones, and some similar ones, because these things were not sold in ordinary stores.

He knocked on several shops before finally waking the boss up. I thought about it and took the contents out of the bag, and I told them, enough was enough. With that, I told everyone to wait for me, and I ran to the bus parked in the distance, I found a window, and stepped on the roof.

What the police prepared for me was a lot of nearly transparent plastic color swatches, and each nearly transparent color swatch was dark red. I found a large swatch in it, held it in my hand, and put it in the back of the car, and I shouted at Xu Tong and them, and saw that there was nothing.

It was so far away that I could only see the figures of some of them. Soon, I heard Xu Tong's very excited voice: "The color has darkened!" ”

I've pretty pretty much figured out what was going on. In the case of pigments, a mixture of blue and crimson will create a near-black color. I shouted and asked Xu Tong how the effect of darkening was, and Xu Tong replied that the area blocked by the color swatch was obviously different from the other places.

However, because of the weak light of the street lamp, it is still possible to see the clues. I thought about it carefully and began to let the police in the car slowly move the car. Again and again, the car stopped in different places under the streetlights, and every time I stopped, I would shout and ask Xu Tong how it worked.

At this point, even a fool understands what I'm doing.

Finally, when the car stopped in one place, Xu Tong told me that it was there! I put the transparent color palette on the blue body, and then I jumped off the roof and ran in the direction of the crowd. I stood at the place where the eyewitness had seen the car disappear and looked at it from a distance.

Sure enough, the part that was covered by the transparent color palette was completely different from the rest of the body. That place, and the night in the distance, the color is very close. However, due to the illumination of the lamp, the clues can still be seen, but compared with the place that is not blocked by the body, that area already has a faint feeling that it is about to disappear.

"This is a crime that uses color and light!" I made a judgment: "The murderer may also be the artist You Lu, a person who is extremely fanatical about color!" ”

Plain blue and deep red, mixed together, close to black, but this is in the case of extremely dark colors. Color-wise, the blue deepens the red, but it's actually a deep purple. The body is plain blue, the transparent color palette is dark red, and when the two colors are superimposed, it becomes purple.

The deep purple, which looks almost black, is mixed with the orange light of the street lamp, and when viewed from a distance, it almost becomes black, which is very similar to the color of black. The color I see, if you look closely, is a taupe.

Regarding the integration of colors, in the actual effect, there are many deviations, often mixed together, and there is no way to get the theoretical color, but I am very satisfied with this effect.

"Using color, then this person must know color very well, and understanding is absolutely not enough, he must be very familiar with color, familiar with when he applies color, there will be no deviation." I said to everyone, "The only person I can think of who has a connection with the mastermind behind the scenes is You Lu." ”

Color mixing, just theoretically, we tried it all night here, and there was no way to make the part of the body that was obscured by the swatches look like it really disappeared. There are several reasons, one is because the transparency of the swatch is not enough, the other is also because of the color of the swatch, we have no way to adjust it, and the third reason is because the faint yellow street lamp has worn the trick of covering.

However, if it is replaced by You Lu, I believe he will definitely do it. You Lu's research on color is superb, and he is too talented. I have seen his paintings, and some of them, when viewed in different places with different lighting, from different angles, the effect is different.

I don't have any research on color, I only know that when several colors are mixed, they may present an approximate color. However, You Lu is different, his control of color and light has reached a shocking point. Theoretically, there are countless colors and degrees of color that can be mixed according to the different shades of mixed colors.

It's just that the human eye can't see the subtle difference.

If it is You Lu who is here today, then he can completely adjust the most ideal color according to the color of the body and the light and color of the street lamp, and then make a transparent color palette that is close to the ideal in terms of transparency and color. Put that color swatch on the plain blue body, and add the effect of light, the part that is obscured is likely to appear very close to the color of the night in the distance.

Maybe it's black, or maybe it's dark gray. The dark gray and the black in the distance are mixed together, but it will make people feel that the color of the car is suddenly darkening, slowly disappearing, and finally driving through the street light area, completely disappearing in the night, and the bus slowly disappears.

As for why the car seen by the witnesses slowly disappeared from top to bottom, it is likely that the transparent color plate was curly, hung above the body in advance, and when it reached a suitable position, it was slowly lowered, which gave people the illusion that the car was slowly being swallowed up from top to bottom.

It's all just a visual error.

Eyewitnesses were led to the sighting site, which is nearly 100 meters away from the street lamp area, and people will be a little unclear when they look at things in the distance, and then there is this kind of color mixing trick, which is completely difficult to distinguish between true and false. Moreover, the specific position of the car is definitely exquisite.

I've lost count of the number of times I've had the cop change the position of the car, a high-level skill that can be worn if the lighting conditions don't go as expected. I looked at the car in the distance, and the position of the car was such that the projection of the street lights on the body almost fell directly below the car.

The position where the witnesses were standing, because of the distance, was almost in a straight line with the rear of the car, and here, the shadow of the car could not be seen. And the tires of the car, hidden in the shadow under the car, are almost black, making it difficult to see. I also finally understood why the rear lights didn't come on, because once they did, the trick of color was a goof.

Moreover, when the car did not drive into the headlight area, it was dark all around, but the body of the car could still be faintly seen, and when it first entered the street light area, the car could be seen clearly at once, but when the color swatch on the body was put down, the color began to darken and fade.

The contrast impact of the three visions makes the last visual impact more intense. Coupled with the distance, the visual error is born.

"This is an ideal type of crime, it is difficult to complete in real life, except for You Lu, I can't think of anyone who can do it!"