Mental ray rendering-based virtual reality rendering method

Abstract

The invention belongs to the virtual reality technology, and particularly relates to a virtual reality technique adopting mental ray rendering, i.e. a mental ray rendering-based virtual reality rendering method. The rendering method includes pre-production and post-processing, and is characterized in that: pre-production includes the following steps: (A) a mental ray renderer is adopted to render object models; (B) textures are set for the object models in a scene, and Arch and Design textures, Autodesk textures and building textures in the mental ray rendering engine are adopted; (C) photometric directional lights, free lights and a daylight system in the mental ray rendering engine are adopted to set lighting sources in the scene; (D) rendering parameters are set, and an mr photographic exposure control system is called to accurately control scene illumination to test the scene-rendering effect; (E) Render To Texture parameters are set, Render To Texture is performed, and object models undergoing Render To Texture and corresponding textures are generated. The rendering method can enhance the Render To Texture effect of virtual reality, increases the degree of realism of display and improve the immersion of users.

Description

technical field [0001] The invention belongs to virtual reality technology, in particular to a virtual reality technology rendered by mental ray. Background technique [0002] Virtual reality technology (referred to as VR), also known as spirit world technology, is an advanced computer human-machine interface with immersion, interactivity and conception as its basic features. It comprehensively utilizes computer graphics, simulation technology, multimedia technology, artificial intelligence technology, computer network technology, parallel processing technology and multi-sensor technology to simulate the functions of human sensory organs such as vision, hearing and touch, so that people can immerse themselves in computer-generated In the virtual world, and can interact with it in real time through language, gestures, mouse and keyboard, etc., creating a humanized multi-dimensional information space, which is a developing new technology with far-reaching potential application...

AI Technical Summary

Problems solved by technology

[0006] The shortcoming of VRP software in terms of visual effects is that the light source and material system of the rendering engine used in baking do not support the simulation of light diffuse reflection, and its post-production technology is not enough to make up for this shortcoming, which leads to other problems. Several obvious defects of the virtual scene: 1. The rich, soft, vivid and delicate light and shade changes and light and shadow changes in nature are roughly simplified into two parts, the bright part and the dark part, and the virtual scene becomes thin (even if many light sources are artificially added) , and it is impossible to effectively change this situation); 2. The smoothness and roughness, hardness and softness of an object are largely expressed by its reflection effect on the surrounding environment. Without the diffuse reflection of light, there will be no object The real reflection of the surrounding environment, so there is no delicate expression of the texture of the object, and the virtual scene becomes false. This defect is especially obvious when expressing silver-white metal and glass; 3. The mutual color influence between objects is also Realized by light diffuse reflection phenomenon, without diffuse reflection, the internal color connection of the scene will be separated, and the virtual scene will become messy

In the latest version of VRP12.0 released by "Zhongshidian Digital Technology Company", although a set of special materials and a special material editor have been added, the above defects still exist because there is still no breakthrough in lighting and reflection.