Analysis of the advantages of root node merging for oblique photography 3D models

Mondo Technology Updated on 2024-02-01

Root node merging is an important technique in oblique photography 3D model processing, which has many advantages, which can significantly improve the processing efficiency and rendering performance of model data. In this article, we will provide a detailed analysis of the advantages of root node merging for oblique photography 3D models.

1. Data size reduction:

The 3D model produced by oblique photography is typically composed of a number of subnodes, each containing its own texture and material information. The root node merge technique reduces the size of the model data by merging these child nodes into a single root node. The merged root node only needs to store one copy of texture and material information, avoiding the need to store and load the same data repeatedly, which greatly reduces the storage and transmission cost of model data.

2. Rendering efficiency is improved

The root node merge technique can also improve rendering efficiency. Before merging, the rendering engine needs to iterate through each child node to perform rendering calculations, which increases the rendering time and amount of computation. After the merge, the rendering engine only needs to traverse a root node to complete the rendering, reducing unnecessary traversal and computation, thereby improving rendering efficiency.

3. Faster loading speed:

Root node merging can significantly improve the loading speed of the model. Before the merge, each child node needs to be loaded and parsed separately, which increases the loading time. After the merge, only one root node needs to be loaded, which greatly reduces the loading time and data transfer overhead, and speeds up the loading speed of the model. Especially in network transmission environments, reducing the data size and the number of requests can help speed up the loading and loading of the model.

4. Effect consistency

The root node merge technique can also improve the consistency and integrity of the model. Before merging, there may be discontinuities between child nodes, texture mismatches, etc., resulting in an incoherent appearance of the model. Merging ensures that the look and texture of the model is more consistent overall, enhancing the visual and realism of the model.

5. Reduced memory usage

Root node merging can effectively reduce the memory footprint. Prior to merging, each child node needed to take up a portion of memory to store its texture, material, and vertex data. After the merger, only one root node's data needs to be stored, reducing the memory footprint. This is especially important for mobile devices and low-end hardware platforms to improve the stability and performance of the system.

In summary, the root node merging of oblique 3D models has many advantages, including reduced data size, improved rendering efficiency, faster loading speed, improved consistency, and reduced memory footprint. These advantages make root node merging an important technology for processing oblique photography 3D models, which provides strong support for efficient model processing and rendering.

Introduction to 3D factory software:

3D Factory K3dmaker is a professional processing software for 3D model browsing, analysis, lightweight, top-level merge construction, root node merging, geometric correction (correction), format conversion, color grading and cutting, coordinate conversion and other functions developed by the domestic team. It can carry out mesh simplification, texture compression, hierarchical optimization and other operations of the 3D model, so as to realize the lightweight of the 3D model. The lightweight compression ratio is large, the model lightweight efficiency is high, and the automatic processing capacity is high. A variety of algorithms are used to correct the geometric precision of the 3D model, with high precision, fast processing speed and support for large models. Excellent data processing and conversion tools, supporting the conversion of OSGB format 3D models to 3DTILES and other formats, which can be quickly converted. The advantage is that it is free, powerful, supports a variety of file formats, and is suitable for a variety of fields. Cooperate with common 3D reconstruction software to optimize the 3D model, improve the quality of the model, and enrich the data results. Give it a try!

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