Method and device for selecting materials for objects in 3D scene

Abstract

The invention provides a method and device for selecting materials for objects in a 3D scene. The method comprises that a material database is inquired to obtain information of candidate materials corresponding to the objects and probabilistic relations between the objects and the corresponding candidate materials; according to the information of the candidate materials corresponding to the objects, different material combination manners of the objects are determined; according to the probabilistic relations, the material combination probability of each of the multiple material combination manner is determined; each material combination manner is compared with a preset reference template, and the preferable degree of each material combination manner is determined; according to the material combination probabilities and the preferable degrees, a target material combination manner is selected form the material combination manners; and the objects are rendered according to a target material. Thus, the target material of a better matching effect can be selected for the objects.

Description

technical field [0001] Embodiments of the present invention relate to the field of three-dimensional scenes, and more specifically, relate to a method and device for selecting materials for objects in three-dimensional scenes. Background technique [0002] In the texture mapping and rendering of 3D scenes, selecting materials for objects is a very important process. For the same scene, choosing different material combinations may present completely different visual effects. In order to be able to select a material combination scheme for objects in a 3D scene more conveniently, in the prior art, a material combination scheme is selected for an object in a 3D scene according to the corresponding relationship between object materials and geometric shapes extracted from a small number of high-quality 3D scene model libraries. . The existing technology mainly has the following problems in the process of selecting material combination schemes: firstly, the number of free high-qua...

AI Technical Summary

Problems solved by technology

The existing technology mainly has the following problems in the process of selecting material combination schemes: firstly, the number of free high-quality 3D scene models is very small, so it is difficult to obtain a more accurate correspondence between object materials and geometric shapes; in addition, the The method only considers the corresponding relationship between the geometric shape and the material of the object, and the degree of discrimination provided by the geometric shape is relatively limited. For example, many indoor objects are composed of some basic geometric shapes. In practice, it is often necessary to choose different Material, and if the same material is selected for these objects according to the relationship between the geometric shape and material of the object, the matching effect will be relatively poor

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