How to do 3d positioning?

The manufacturing method of three-dimensional positioning is as follows:

1, 3D modeling: use 3D modeling software such as Blender, Maya or 3ds Max to create realistic 3D models. These software tools provide various modeling tools and plug-ins that can be used to build buildings, trees, landscapes and other elements. The process of modeling needs to consider the shape, proportion, material and illumination of the object in order to create a real appearance and feeling.

2. Photo scanning: use professional 3D scanning equipment to scan real-world objects or scenes into 3D models. This technology usually requires the use of high-precision scanning equipment, which can convert real objects or scenes into digital 3D models. These models can be imported into 3D modeling software for detail adjustment and rendering to increase realism and fidelity.

3. Mapping technology: Mapping technology is used in 3D modeling software to apply the real-world photos taken to the model surface to increase the sense of reality and details. This technique usually requires the use of tools such as texture mapping and illumination mapping. Texture mapping is to apply the real texture image to the model surface, while illumination mapping is used to simulate natural lighting effects.

4. Special effects production: Adding special effects to 3D location can increase the vividness and attraction of the scene. These special effects can include rain and snow, smoke, flames and other effects, and can also include dynamic elements such as car driving and people walking. These special effects can be realized by plug-ins or script programs, and can also be made by professional special effects software.

Matters needing attention in 3D positioning:

1. Determine the scene demand and target audience: Before making 3D location, it is necessary to define the scene demand and target audience, so as to better design the scene and choose the appropriate visual style. For example, to make a city street view, we need to consider architectural style, roads, trees, lighting and other factors, as well as the feelings and needs of the target audience, in order to better convey information or create an atmosphere.

2. Pay attention to detail processing and fidelity: Pay attention to detail processing and fidelity when making 3D exterior scenes, which can be achieved by establishing realistic 3D models, using high-precision texture maps, and adding realistic lighting and shadow effects. In addition, we need to pay attention to the proportion of buildings, the texture of materials, lighting effects and other details to increase the realism and fidelity of the scene.

3. Choose appropriate rendering technology and tools: Rendering technology is one of the keys to making 3D exterior scenes, and choosing appropriate rendering technology and tools can increase the fidelity and texture of the scene. For example, global lighting technology can simulate the effect of natural light, and post-processing tools can adjust color and contrast. In addition, we need to pay attention to optimizing performance and reducing rendering time in order to better control the progress and quality of the project.