3D Mesh Lighting Rendering for Natural Image-Based Effects
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image processing technologies fail to create realistic and natural lighting effects, particularly in three-dimensional scenes, due to a lack of consideration for depth information and inconsistent lighting and shadow rendering.
Innovation Solution
An image-based lighting effect processing method that utilizes a three-dimensional grid model to simulate light sources and obstacles, determining lighting information based on depth and position, and applying a hierarchical rendering strategy to enhance realism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional image processing technologies are used to add lighting effects, then the processing is simple and fast, but the lighting rendering effect is unnatural and unrealistic
Solution Approach 1:
The patent segments the image processing into hierarchical levels: background image processing first, then object image processing with three-dimensional grid models. This segmentation allows complex lighting effects to be applied selectively to different regions, improving overall rendering quality without uniformly increasing complexity across the entire image.
Solution Approach 2:
The patent transitions from two-dimensional image processing to three-dimensional space by constructing three-dimensional grid models for objects. This dimensional change enables realistic lighting and shadow calculations by considering depth information and spatial relationships, directly improving lighting rendering effect while managing complexity through structured 3D representations.
2Manufacturing precision
If depth information is considered for realistic lighting effects, then the lighting rendering becomes more natural, but the computational complexity increases
Solution Approach 1:
The patent divides the image into background and object regions, applying different processing strategies. Background processing uses simpler methods while object processing employs three-dimensional grid models with depth information. This segmentation achieves precise lighting effects where needed without uniformly increasing computational complexity across the entire image.
Solution Approach 2:
The patent performs preliminary actions by first processing the background image and establishing the lighting environment before processing object images. This preliminary processing of the background provides a foundation that simplifies subsequent object processing, as the lighting context is already established, reducing the overall computational burden.
3Illumination intensity
If hierarchical rendering strategy is used to process background and objects separately, then the lighting effect becomes more natural, but the processing time increases
Solution Approach 1:
The patent segments rendering into hierarchical levels: background rendering first, then object rendering. This segmentation enables parallel processing possibilities and optimizes the rendering pipeline by preparing background lighting conditions beforehand, reducing the computational burden during object rendering and potentially decreasing total processing time despite the multi-stage approach.
Solution Approach 2:
The patent performs preliminary background rendering to establish the lighting environment before processing objects. This preliminary action prepares the lighting context in advance, allowing object rendering to focus specifically on lighting calculations relative to the already-rendered background, thereby optimizing overall processing efficiency while maintaining high lighting effect quality.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to an image-based lighting effect processing method and apparatus, and a device, and a storage medium. The method comprises: obtaining an image, a lighting effect material picture, and a first position of a simulated light source in a three-dimensional space, wherein the lighting effect material picture comprises lighting information; according to an object image in the image, generating a first three-dimensional mesh model of an object on the surface of the object image; determining lighting information of a point on the first three-dimensional mesh model according to the first position of the simulated light source, a distance between the point on the first three-dimensional mesh model and the surface of the image, and the lighting effect material picture; and rendering the object image in the image according to the lighting information of the point on the first three-dimensional mesh model to obtain a first lighting effect rendered picture. According to the present invention, the lighting effect can be more natural and realistic.