Three-dimensional-model processing method used for terminal display

Abstract

The invention discloses a three-dimensional-model processing method used for terminal display. The method includes: transforming generated three-dimensional-model materials into a PBR material according to a predetermined material conversion method; adopting a quadratic error measurement method to carry out model simplification on a generated three-dimensional model; adopting a floating-point quantification method to discretize geometric information of the three-dimensional model after simplification or hierarchical three-dimensional models after hierarchy dividing to realize compression on the three-dimensional model or the hierarchical three-dimensional models; dividing triangular faces of the three-dimensional model after compression or the three-dimensional model after simplification into multiple pieces of a hierarchy according to resolution, and forming a hierarchical three-dimensional model, which corresponds to each piece of the hierarchy, by all triangular faces contained by the piece of the hierarchy; and sequentially transmitting all the hierarchical three-dimensional models after model material transformation, model simplification, model compression and model hierarchydividing processing to a terminal to carry out rendering according to priority of the hierarchy, or transmitting the same to the terminal to sequentially carry out rendering according to the priorityof the hierarchy.

Description

technical field [0001] The invention relates to the field of graphics, in particular to a three-dimensional model processing method for terminal display. Background technique [0002] With the rapid development of technologies such as HTML5 and VR / AR, the requirements for displaying and editing 3D models on terminals have become more and more common. However, there will be many problems in the process of transmitting the built 3D model to the terminal and displaying it, as follows: [0003] (1) The material of the 3D model generated by the modeling tool is inconsistent with the material of the rendered model used by the terminal, which will directly cause confusion in the rendering process of the 3D model and affect the rendering quality. [0004] (2) The 3D model generated by the modeling tool is relatively fine and contains a large number of triangular faces. When the terminal is rendered, it will occupy a large amount of operating memory of the terminal processor, increa...

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Problems solved by technology

[0003] (1) The material of the 3D model generated by the modeling tool is inconsistent with the material of the rendered model used by the terminal, which will directly cause confusion in the rendering process of the 3D model and affect the rendering quality

[0004] (2) The 3D model generated by the modeling tool is relatively fine and contains a large number of triangular faces. When the terminal is rendered, it will occupy a large amount of operating memory of the terminal processor, increase the computing overhead of the terminal processor, and reduce rendering efficiency. The precision adjustment of the rendered product cannot be made according to the visual requirements

[0005] (3) The 3D model generated by the modeling tool contains a large number of triangles, so that the storage capacity of the 3D model is very large, which will reduce the transmission efficiency of the 3D model

[0006] (4) Since the built 3D model is only displayed with one precision on the terminal, it will affect the user's interactive experience

[0007] (5) There will be potential safety hazards during the transmission of the 3D model

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