How is a three-dimensional painting made? What is a three-dimensional painting? Is it also called stereoscopic painting?

Its principle is to take pictures with a digital camera first, then use special software PS to artificially set different depth of field to create a three-dimensional effect, and then print on a large scale, realizing commercialization and low cost. At this time, it is necessary to choose suitable grating materials to achieve the balance between artistic beauty and low cost. At present, the stereoscopic imaging technology level of some domestic enterprises has surpassed that of Germany, and the cost is only 1/50 of that of Germany. The manufacturing method of ps is as follows:

1. Adjust the image 1 to open a designed layered image. 2. In the Image menu-Image Size, the resolution is set to 100.227 pixels /cm, and the width and height are determined by yourself. 2. Set the raster layer to 1, create a new layer, hide other layers, and adjust the image to the maximum through the navigator. 2. Select the single-column box selection tool and click on the canvas; Select the pencil tool (place the tip of the pencil tool at 8 or 9 pixels) and click the selection. 3. Press Ctrl+Alt and click the right arrow key 7 times, release Ctrl+Alt and click the right arrow key again. 4. Select the rectangular box selection tool, and select 7 black, 1 transparent rectangular areas with a width of 8 pixels. Select Define Pattern from the Edit menu, and then click OK. 5. Clear the current layer: Select All-Delete-Deselect (Ctrl+D) 6. Edit-Fill, Use Patterns and Custom Patterns: Select the last custom pattern and click OK to hide the raster layer. 3. Get 8 similar pictures 1. Select the layer that needs to be stereoscopic (other layers except the middle scene). 2. Make a copy (Ctrl+J). Select the move tool. Click the left arrow key to move 10 times (see the table of moving times for specific moving times). 3. Copy and move again (the number of moves is the same). Loop operation. Add the original one, ***8 pictures) Fourth, divide and arrange the pictures 1, select the original layer, hide other layers, load the grid layer selection area (hold down Ctrl and click the grid layer), and select the rectangular box selection tool. 2. Press the Delete key to delete, and press the left arrow key once to select the previous layer. 3, continue to delete, loop operation, until other copied layers are divided, and deselect (Ctrl+D). 5. Split the image: merge the visible layers (Ctrl+Shift+E). 6. At this point, the stereoscopic operation of a layer is completed. Other layers that need to be three-dimensional should also be made according to the above steps. It's just that the number and direction of movement are different. Seven, after all the layers are completed, delete the raster layer. Explain 1, open an image, and first determine the subject of performance, which is the middle scene, the foreground in front of the subject and the background behind the subject. The foreground moves to the left, the background moves to the right, and the subject tries to keep clear, that is, it is generally motionless. 2. Depending on the foreground of the right edge of the canvas, because the images will shift to the left in the process of obtaining similar images, an image with a certain width should be reserved outside the right canvas to avoid blank or lower-level images; Similarly, according to the background of the left edge of the canvas, it is necessary to reserve an image with a certain width outside the left canvas. 3. Defining the width of the pattern is equivalent to obtaining the number of similar images. 4. Press Shift+ point the direction key once, which is equivalent to only pressing the direction key 10 times. 5. After all layers are made, they can be used as templates without merging. The space occupied after the merger is small. 6. The size and resolution of the image shall not be changed, and the image shall not be deformed. This ps stereoscopic painting is the most basic and primitive method, which is laborious and error-prone. Now it is generally professional software production, and the efficiency is greatly improved.

Edit this material about making grating three-dimensional paintings.

The varieties of three-dimensional flat grating are as follows: 1. Grating film: 1, 40-line grating film, coil grating, with specifications of 122 width, 100 width, 50 square or 100 square, and focal length of 4 mm; 2, 32-line grating film, coil grating, specifications are 122 wide, 100 wide, 50 square meters or 100 square meters, a roll of focus is 5 mm, three-dimensional grating film is mainly used for large and medium-sized hanging pictures and large-format display pictures, and the cost is low. However, cylindrical grating film is gradually eliminated by the market because it needs to be stuck on glass and other media, with low transparency and poor definition. Second, slit grating, usually called black grating: 1, 42-line slit grating, coiled material, 122X8300CM, 100 square/roll, with its own glue; 2, 30-line slit grating, coiled material, 122X8300CM, 100 square/roll, with its own glue; 3, 20-line slit grating, coiled material, 122X8300CM, 100 square/volume, with self-adhesive; 4. 10 line slit grating, coiled material, 122X8300CM, 100 square meter/roll, with its own glue. Used for underground passage and indoor display, dynamic light box display, etc. However, the slit grating stereo light box has the following defects: the light transmittance is only 20-30%, which is not environmentally friendly and energy-saving, and the lighting lamp consumes a lot of energy, generates a lot of heat and has low brightness, so it is only suitable for indoor light boxes. It is also gradually eliminated by the market. 3. Sheet grating: 1 and 70-line grating sheet: the specification is 5 1CMX 102CM, 80cm120cm,120cm, and the thickness is 0.9MM；. 2.75 wire grid: specification 5 1X7 1CM, thickness 0.45MM and 0.65 mm. 3.160 wire grid: specification 5 1X7 1CM, thickness 0.33MM. 70 wire grid mainly Below 40X60 format; 75 sheets are used for UV printing and paper printing synthesis; 160 line is used for UV printing. The product characteristics of chip grating are: the material is thin (generally between 0. 18 ~ 0.9mm), so it is called chip grating. ) more lines (generally 60- 140 lpi). Short sight distance (at present, when the sight distance of the film on the market exceeds 1.5 meters, the stereoscopic effect will be greatly reduced, so the generated stereoscopic image has a small format and a short sight distance, generally less than 40*60 cm, otherwise the stereoscopic effect will be greatly reduced with a large format and a long sight distance. Low cost Due to the large number of grating lines, there is a high requirement for the resolution and clarity of the image, so most domestic manufacturers of plate stereoscopic paintings generally choose printing technology to produce small-format plate stereoscopic paintings (generally not more than 40*60). However, it also has serious disadvantages, that is, the number of single images must reach a certain scale to produce. Can't personalized production, can only choose the manufacturer's existing model. As a result, there are few three-dimensional pattern materials in the market and the artistic sense is poor. Moreover, due to the limitation of format, the application field is very narrow. In addition, the three-dimensional image of the paper is uniformly printed by the printing factory according to the fixed data. This pattern is influenced by the principle of stereoscopic imaging and the error of the number of thin slices, which can not guarantee that every stereoscopic image can eliminate moire fringes (commonly known as light waves), greatly reducing the appreciation of stereoscopic paintings. The market can't be fully opened, which limits the development of three-dimensional industry. 4. Grid plate: 1. Manufacture of small-format direct-compression injection grating plate: (1)42-line grating plate with specifications of 40X50CM horizontal stripes and 40X50 CM straight stripes; 20X25CM horizontal stripes, 20X25CM straight stripes, 2MM thickness; (2)32-line grid plate, with specifications as follows: 50X60CM horizontal stripes, 20X30CM horizontal stripes, 20X30CM vertical stripes and 20X25CM vertical stripes, all with thicknesses of 3 mm; (3)25-line grating plate: specifications are 40X60CM horizontal stripes, 40X60CM vertical stripes, 60X80CM vertical stripes, 80X 120CM horizontal stripes, with a thickness of 4MM..2 2. Large-format stereoscopic grating plate: (1) 25 lines, specifications. (2)32-line straight line, specification 122X244CM, thickness 3.2MM；; (3)42-line straight line, specification 122X244CM, thickness 3.2MM, flat grating is mainly used to make advertising light boxes, advertising display, large-scale display pictures of wedding photo studio in the later period, cultural and entertainment places and public places, large-scale three-dimensional hanging pictures, family decorative paintings, etc. The product features of plate grating board are: material thickness (generally more than 2mm), few lines (between 10 ~ 60 lpi), long sight distance (about 2 ~ 10m, different sight distances with different thicknesses), and high cost (at present, ps and pet materials are generally selected in China, and the price is about 130 yuan/square). But also meets the requirements of personalized production. However, due to the high cost of plate materials, the retail price of plate stereoscopic painting remains high, the market is small and it is difficult to popularize. The technical indicators of grating usually include: 1, LPI (number of lines)-the number of gratings per inch. Some people say that the pitch is the width of each grating. The relationship between LPI and pitch can be expressed by the following formula: LPI=25.4 mm/pitch. 2. Viewing angle-the angle allowed when forming an image or observing an image. Generally speaking, the viewing angle is small and the grating is thick, which is suitable for making stereoscopic images. This kind of grating has a large viewing angle and a thin grating, which is suitable for making transformed images. There are many grating lines, which are suitable for making stereoscopic or transformed pictures of small pictures and for close-up viewing. The number of grating lines is small, which is suitable for making stereoscopic or transformed pictures of large pictures and for long-distance viewing. What is the relationship between printer resolution and printing stereoscopic images? The resolution of the printer is actually called printing positioning accuracy. In layman's terms, the resolution of a printer refers to the accuracy of printing ink drops at designated positions during the continuous movement of the printer. The technical term of stereoscopic image is called "dislocation arrangement of image details". The printer is to print out the details and at the same time print the details to the designated location. Therefore, the higher the printing positioning accuracy, the higher the quality of the stereoscopic image produced by the printer. Printers with different printing positioning accuracy are suitable for images with different widths and gratings with different pitches. For example, a printer with a printing positioning accuracy of 2880dpi is suitable for 75-90 lpi gratings and 20*25cm images; Printers with printing positioning accuracy of 1440dpi are suitable for 40-60 lpi gratings and 40*50cm images; Wait a minute. In addition, through different processing and material selection, raster painting can also achieve two changes, three changes, rotation, scaling, rainbow and other effects, which are actually extensions of raster imaging principles. Five. Preservation and cleaning of stereoscopic images Because stereoscopic images are made of stereoscopic gratings, the cost is relatively high, so it is very important to preserve the raster stereoscopic paintings in stock. The common methods are: 1, and the grating plate cannot be deformed. Deformation is the enemy of grating. Once deformed, the grid plate becomes a pile of waste plastic. When storing the grid plate, it must be placed horizontally, and the lowest placement surface must be flat. The stacking number of grating cutting plates should not be too much, and it is generally appropriate to stack 50 gratings. 2. There shall be no scratches on the surface of the grating plate. In particular, the domestic PS grating plate has poor wear resistance. It is forbidden to "pull" the grating plate when loading and unloading from the cargo pile. Grille plates are generally provided with a protective film when they leave the factory, and this protective film will be removed in the final post-production. 3. During post-production, dust will be adsorbed on the surface of the grid plate due to the effect of static electricity. Do not use hard or easy-to-drop tools to clean dust. If some dust is not easy to clean, you can stick it off with a cold film. Do not use solvents such as alcohol for cleaning.